Your
セルフドリリングスクリュー
サプライヤー
Your Expert Self-drilling Screws Machine Manufacturer and Supplier-The Ultimate Solutions
Prince Fastener is a professional self-drilling screws supplier.Let Prince Fastener to be your trusted partner for all your needs.We will design and produce fasteners as your requirements
- Expert in the fastener manufacturing industry for more than 30 years
- Own full fastener production machines and testing machines
- You will Purchase the self drilling from fastener supplier directly with the wholesale price
- Excellent customer services
- カスタマイズされたファスナーの要望を受け入れる
- 中国からのねじ会社の専門スタッフとの速い応答
Why Buy Self-drilling Screws from Prince Fastener?
Prince Fastener is a trusted ファスナーサプライヤー; founder Lacier Du is passionate about designing and producing high-quality fasteners.
At Prince Fastener, we are proud of the company’s growth over the years. Today, our factory in Nantong has more than 150 employees and covers an area of 25,300 square meters. We specialize in manufacturing fasteners. We also have all ODM/OEM for this project and have our R&D team.
Everything related to Prince Fastener is done in-house. We have our module design engineers, fabricators, painting, and assembly/testing rooms, all located in our Nantong factory. Our factory can produce more than 10,000 tons of fasteners annually, with an annual turnover of more than 7 million US dollars.
Affordable price without compromising quality
Our B2B business model keeps prices low and product quality high. Our ability to keep costs at such reasonable levels goes hand in hand with our mass production and supply chain’s advantages.
Prince Fastener make profits utilizing small profits but quick turnover. That’s why we usually do business with wholesalers, importing companies and brands that need fasteners.
Hot Products for Self-drilling Screws
Self drilling Screws
Self drill Screw
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Metal Self drilling Screws
Screw Self Drill
Self drilling screws for Thick Steel
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1 4 Self drilling Screws
Self-drilling Wood Screws
Self drilling Screws Supplier in China:Estimated wholesale Price for Self drilling Screws
The estimated wholesale price for self drilling screw should include the below,
ファスナー製造コスト
Just pay the costs of the self-drilling screws with the wholesale price from the ファスナーメーカー directly, just waiting for the right quality self-drilling screws to be produced.
Self drilling Screws Packing Fee
You will pay a small amount for the Self-drilling Screws if you have special requirements for the package, you can apply to get rid of the fee if your order amount is big enough.
送料
This payment is for transport the Self-drilling Screw orders from China fastener factory to you by sea or by air
Self-drilling Screws Sample Fee
Normally we will provide free Self-drilling screw samples for importers,clients need to afford the international shipping costs.
Customized Self-drilling Screw Fee
プリンスファスナー customized Self-drilling screws クライアントからの注文は、我々は顧客の要求に従って製品を生産することができ、もちろん、クライアントは、カスタマイズされたネジのコストを支払う必要があります。
カスタム・クリアランス費用
この費用には、仕向地の通関費用、関税、その他雑費が含まれます。
Self drilling Screws supplier in China:Estimated Self-drilling Screws Producing Period and Delivery Time
In order to meet the increasing customer demand for Self-drilling screws, Prince Fastener has no choice but to increase production capacity to achieve the desired goal. The process and time required to go through the following steps
Self-drilling Screw Design and Manufacturing
Prince Fastener designs and manufactures the Self-drilling screws in our own fastener factory
製品梱包時間
Put the Self-drilling screws into pp bag or small white boxes,then put them into a package,they will take a short time to do it.
国際配送にかかる時間と通関にかかる時間
Need time to ship the Self-drilling screws worldwide by sea or by air, and then make custom clearances also need time.
ロジスティクス
You’ll finish the whole process and get what you want. You just wait for the local logistics to haul the Self-drilling screws from the port to your destination.
Prince fastener will introduce you all the process of the Self-drilling screw production.
プリンスファスナー製造工程
プリンスファスナーねじ製造の基本コンセプト
1、プリンスファスナー製造ねじに分けることができます：冷間圧造、ホット機械加工（旋盤、フライス盤など）。
2、冷間圧造はプラスチック金属を使用することで、冷間機械的な圧力や描画を使用して、金属の固体変形に達する。
3、ホットアップセッティングは、加熱と圧力処理後の材料の形状を満たすようにすることです。
設計要件。
4、プリンスファスナーの機械加工は、頭の6つのコーナーの特殊または特殊なボルトの小バッチは、フライス加工後にオンになります。
5、スクリューボルトのスレッド：機械的および手動ねじ切り、ダイスに似ています。
6、ミリングテール：一般的にプリンスファスナーカッティングマシンの終わりまでに完了します。
7、冷間圧造と熱間動揺の違い：冷間圧造ボルトの表面はより美しく、ダース赤いボルト表面の酸化皮は良く見えません；
現象の原因と成形過程の原因の分析
1、偏心：2つの赤と不適切なインストールと調整マシン。
2、ミノ：インストール不良と不適切なプリンスファスナー調整機で。
3、頭部が丸くない：ダイまたはパンチの成形の選択が十分でない。
4、亀裂のモードを再生する：亀裂やダイスのR角、モデルが2つの衝突によって打たれるように。
5、ヘッドダブル：パンチが悪い。
6、フラッシュ：不良、パンチング成形は、主にパンチとダイの間の穴のクリアランスが大きすぎるか、または短すぎる赤い棒である。
7、クラック角度：パンチ針バーストまたは2パンチとパンチは重くない。
8、ヘッドクラッキング：材料、または金型（金型のパンヘッド六角ワッシャーヘッドなど）、および潤滑油を使用してエラー。
一般的な圧延の不利な現象と原因の分析
1、加工亀裂：歯板とプリンスファスナーの古いマシンを調整します。
2、鈍い尾：機械が適切に調整されていない、歯板が古すぎる。
3、曲がったテール：シートボードのシートのコントロールスクリューがきつすぎる。
4、尾：歯の摩耗プレートと不適切な調整機。
Self drilling Screws Supplier in China:Searching for Self-drilling screws made in China?
Prince Fastener will be your ideal self-drilling screw manufacturer with certified products and professional factory sites.
生産設備
プリンスファスナーは、月産800トン、年間生産能力1万トン以上の100以上の生産設備を所有しています。設備には、ヘッド製造機、ねじ転造盤、ネットファーネス、塩水噴霧機、3Dプロジェクター、硬度計などの試験機など、台湾から導入された先進的な製造設備が含まれています。
試験装置
すべてのプロダクトはハイテクな良質の鋼鉄から、ファスナーの加工技術の大ぞろいの完全な一組と、完全なテスト方法および高度の生産技術、24/7 サービス成っています、王子ファスナーは高度の生産技術および完全なテスト方法を合わせ、プロダクトの修飾された率は 100 % に達します。最高の顧客満足を追求して下さい。
Self drilling Screws Supplier in China:Need Special screws for your clients or projects?
プリンスファスナーにご連絡ください。
プリンスファスナーは Self drilling Screws supplier in China integrating product development, sales and service, and can accept customers’ own designs and OEM & ODM design orders. The company specializes in the production of self-drilling screws, long screws, non-standard screws, titanium screws, small screws, ステンレス鋼ねじ等々。
プリンスファスナーでは、旋盤を使用してさまざまなサイズや材質のねじを製造し、最短時間でお客様にお届けしています。
プリンスファスナーは、DIN、ANSI、ISO、GB規格と高強度グレード12.9/10.9 DIN 912 DIN 931 DIN 933 DIN 934 DIN 7991 ISO 7380ステンレス鋼、アルミニウム合金、真鍮六角ボルトとナットに従ってファスナーの開発、製造、販売を専門としています。
私たちが製造したネジは広く機械製造、航空宇宙、医療、造船、超音波、太陽エネルギー、電気めっき、石油、化学、および他のハイテク分野で使用されています。また、我々はカスタマイズのすべての種類を生産する豊富な経験を持っています。そのため、OEMやODMの注文も歓迎します。私達のカタログから現在のプロダクトを選ぶか、またはあなたの適用のための工学助けを求めるかどうか、あなたの購入の必要性のための私達のカスタマーサービス・センターに相談できます。私達の会社は安定した、時機を得た供給、信頼できる質および誠実なサービスを保障する原則に付着します。今後とも、より一層のご支援とご鞭撻を賜りますようお願い申し上げます。
The Complete FAQ Guide about self drilling screws
クイック・インデックス
1,What’s the difference between self tapping and self drilling screws?
2,How to use self drilling screws ?
3,What is a self drilling screw?
4,How are self drilling screws manufactured?
5,When to use self drilling screws ?
6,What is a self drilling screw used for ?
7,How to check the quality of self-drilling screw?
8,Will self drilling screws work in concrete ?
10,顧客にセルフタッピングネジのサンプルを無料で提供してもらえますか？
11,What Tips for Installing Self drilling Screws ?
12,What processes do we need to be careful about when manufacturing and producing Self-drilling screw ?
13, Does Prince Fastener provide self drilling screw with wings and self drilling screw with washer ?
Many people may use various tools in their lives. For example, some reinforcing parts may need to be used. The most common are some screws and nuts. Nowadays, there are more and more types of screws. Two kinds of screws are more popular, namely stainless steel drill-tail screws and self-tapping screws, but many people don’t know what the difference between these two kinds of screws is?
1, The difference for application.
Stainless steel self drilling screws and self-tapping screws manufacturer have a lot of differences; the main difference is the use of distinctions; first of all, self-tapping screws supplier can only be used in some non-metallic or soft ground base; screws can be fixed on the material, but for the drill-tail screws, can be used in some high hardness material pudding, such as thin plate, colour steel tiles, so the drill-tail screws are more powerful!
2 The difference for applications for the screws
The differences in the use of these two screws are also very obvious. First of all, for the womb screw, the rotation must be squeezed downward; the user does not require drilling, so it is easy to complete, but drilling can not be drilled many times; otherwise, it is easy to slide when using stainless steel drill-tail screws, you can directly drill holes in the material, the whole process is also very simple, can effectively save installation time!
3,Tthe difference in appearance.
This is also a very important difference between stainless steel drill-tail screws and self-tapping screws; first of all, for these self-tapping screws, the shape is generally pointed thick teeth with hard texture, with a corresponding taper in front, but for stainless steel drill-tail screws, the head is drilled, which is the main difference in appearance between the two, through the formation of the two screws can be respectively!
2,How to use self drilling screws ?
カスタムセルフドリリングスクリュー are a kind of wood screws, mainly used for fixing coloured steel tiles in steel structures and thin plates in simple buildings. Self drilling screws have a drilled or pointed tail and can be drilled, tapped and locked directly on the set-up and base materials without additional processing, which saves a lot of construction time.
Unlike standard screws, Self drillinged screws supplier have higher tensile strength and maintenance force, and they do not loosen even after being combined for a long time. In the use of screws, if you can first understand the mechanical properties of screws, then you can better use the drill screws. Different types of screws have other mechanical properties; the mechanical properties of the different occasions that lead to screws will be different. That means that there are differences in the way they are installed.
1, stainless steel drill screws need a special electric drill (recommended power 600W).
2, the locator of the drill will be adjusted to the right position to ensure that the screws are drilled to the correct location. Check the speed of the training:
When using 3.5(6#); 3.9(7#); 4.2(8#); 4.8(10#) 410 screws supplier, make sure the drill speed is 1800-2500 rpm;
When using 5.5(12#); 6.3(14#) 410 screws; make sure the drill speed is 1000-1800 rpm. ;
Use 3.5(6#); 3.9(7#); 4.2(8#); 4.8(10#) 304 screws; make sure the drill speed is 1500-2000 rpm;
When using 5.5(12#); 6.3(14#) 410 screws, make sure the drill speed is 1000-1500 rpm.
3, Choose the right socket or cross bit to install on the electric drill and then connect the screws well.
4、. The screws and electric drill must be installed perpendicular to the surface of the pressed steel plate, click the power switch, and create a centre point with force.
5、Add about 13 kg of force to the drill by hand to ensure that the staff and the centre point are on the same vertical line.
6、Turn on the power switch, do not stop in the middle and stop the downward drilling quickly after the screw supplier is in place (to prevent the low drilling from not being in business and excessive low drilling from occurring)
3,What is a self drilling screw?
Self drilling screws, self-drilling screws, also known as dovetail screws in northern China, are a type of wood screws. Drill tail screws are screws with a self- drilling head at the front of the screw, the tail of which is drilled or pointed tail, without additional processing, can be directly in the setting material, the base material _ on the drilling, tapping, locking substantial savings in the application of I time. The different drill ends can be divided into round head Miko / cross/plum, countersunk head (flat head) / Miko / cross/plum, hexagonal washer, round head washer (large flat head), horn head, etc.
4,How are self drilling screws manufactured?
The Self drilling screw is firstly made of a rod-shaped blank 10 with a head 11 at the upper end and the lower end in the middle of two modules I. The lower back of the rod-shaped blank ten is stamped out with a ^H-shaped tail 12 by stamping the moulding cavities I 1 of the two modules I in opposite directions, which has a taper 121 at the end of the Self drilling 12, and the Self drilling 12 is provided with slightly inclined When the locking action is carried out, the drilling edge 123 and the cutting edge 124 are used to drill the object and guide the external thread 13 of the Self drilling screw 1 to lock in gradually. At the same time, the chips generated during the drilling process are discharged by moving the chip removal groove 122 up the Self drilling section 12, thus achieving a stable locking and positioning effect.
However, the two chip slots 122 of the Self drilling screw supplier 1 made in the above method are set at a slight inclination, so the drilling speed is invasive when locking, the chip discharge is not smooth, and the deeper the locking and drilling, the deeper the internal chip cannot be smoothly discharged, which will easily lead to high temperature and blunting of the Self drilling 12, and even the situation of breaking when it cannot continue drilling.
The details of the steps are described in detail below.
(l). First, the upper end of a rod-shaped blank 20 is stamped with a rotating head 21, and the lower back is placed in the middle of two modules (as in Figure 1), and the lower end of the rod-shaped blank 20 is stamped with a tail 22 by stamping the cavities of the two modules in opposite directions. The Self drilling 22 is provided with two symmetrical chip slots 222, and the circumference of the Self drilling 22 is equipped with a cutter lip 223 at each side of the two chip slots 222.
(2). (2) Torsional forming: Two clamping fixtures, 100 and 200, are used to clamp the middle section of the bar stock 20 and the end section of the Self drilling 22, respectively, so that one of the clamping fixtures 100 (200) rotates about 180 degrees (or other angles) to form a symmetrical spiral shape for the chip groove 222 and cutting edge 225 of the tail 22.
(3). Thread forming: Next, a section of external thread 23 is formed by thread rolling on the outer edge of the bar stock 20 with a tooth plate.
(4) . Heat treatment: The rod blank 20 is hardened by applying an appropriate high temperature.
(5) . Finished product: Finally, the finished product can be made with spiral chip groove 222 and cutting edge 225.
5,When to use self drilling screws?
Self-drilling screw can be directly drilled, tapped and locked on the setting material and base material at one time and can be quickly and automatically drilled and now Self-drilling screwed and fixed; the construction efficiency of Self-drilling screw is extremely high; it saves the maximum construction time, improves the engineering construction efficiency and enhances the economic efficiency. Self-drilling screw rivet the corresponding parts with strong bonding force, high preload, and high stability of the connected components.Self-drilling screws with a drill tip, the tip like a twist drill and named after theSelf-drilling screw, can drill their central hole in the assembly, and then with the help of the sparkling threaded part of the hole in the carrier self-drilling extrusion with the matching thread, so-called Self-drilling screw screws.
6,What is a self drilling screw used for?
Compared with ordinary screws, the hardness of Self-drilling screw is much stronger than standard screws, which not only have good maintenance ability but also have a very strong effect when connecting objects. Drill-tail screws do not require additional processing; they can be drilled directly on the thing to lock. The drill-tail screws produced by Prince Fastener are very easy to use and can greatly improve efficiency. Nowadays, drill-tail screws are the first choice of workers in various fields.
The application of the Self-drilling screw are: A: stainless steel, steel plate, galvanized steel plate, engineering installation. b: curtain wall, metal light compartment, plastic steel doors and windows and other indoor and outdoor installations. c: ordinary angle steel, channel steel, iron plate and other metal material combination installation (steel installation). d: car, container cabinet, shipbuilding, refrigeration equipment, environmental engineering and other assembly projects
7,How to check the quality of self-drilling screw?
As a professional self-drilling screw supplier, we guarantee that from the raw material to the finished products, we have to go through 8 inspection processes, and only after passing the inspection can we ship. To ensure the quality of self-drilling screws (Character) in customers’ is a qualified screw.
No matter what specifications of self-drilling screws fasteners, after the completion of production are required to do a series of tests, testing qualified (qualified) before shipment, then the regular size test, tolerance test, and appearance test, we also need to try what items? Self-drilling screws supplier mechanical (machinery) performance test (test) projects include (bāo kuò) surface hardness test, carburization (shèn tàn) layer depth test, core degree test, microstructure test, screwing performance test, and damage (vandalism) torque test.
1、表面硬度試験（テスト）。
GB/T5030仕様ビッカース硬さ（HV0.3）試験（テスト）を使用して表面硬さ、表面硬さ試験は、平面上で、頭の中で優先されるべきである。非標準のネジは、オブジェクトの斜めの円形回転と摩擦の物理学と数学を使用して、徐々に装置のメカニズムを締め付けるためのツールです。
2、浸炭層深さ（金属組織試験
The carburization (C) layer depth test (test) is carried out on the measuring surface of the self-drilling thread at a point half the distance between the top of the tooth and the bottom of the tooth, except for self-drilling screws with specifications <ST3.9, in which case the test should be carried out on the base of the tooth. The depth of the carburization layer shall be calculated from the point where it exceeds 30 HV.
3.コアの硬さ試験。
Vickers core hardness (Hardness) test according to GB/T4340 and should have sufficient distance (distance) with the end of the self-drilling screw (there should be a complete thread diameter) of the cross-section of 1/2 radius (radius). Non-standard screws are tools that use the physics and mathematical principles of beveled circular rotation and friction of objects to tighten objects and mechanisms progressively.
4、ねじ切り性能試験（テスト）
Self-drilling screws (screw) nail test piece (with or without coating) screwed into the test (test) plate until there is a complete thread entirely through the test plate; the test plate should be made of low carbon steel (Steel) with a carbon content of <0.23%, the hardness of 130-170hv (measured by GB/T5030 and GB/T4340) test plate thickness (thickness) degree and test aperture. thickness) degree and test aperture by the hole or punching and then drilling or reaming system. Precision screws are widely used in electronics, electrical, appliances, furniture, machinery, etc.
8,Will self drilling screws work in concrete?
Self-drilling screws are screws that are capable of drilling the threads into the material. Self-drilling screws can be used in various materials, including wood, metal, and brick. These screws cannot be drilled through metal and require a pilot hole to be pre-drilled before installation. The pilot hole is created by using a drill bit slightly smaller than the screw, and the screw’s threads strike the metal or wood as the screw is installed. This drilling action holds the material together. In addition, self-drilling screws can have many different types of tips, which help tap the threads into various substrates.
セルフドリリングスクリュー は、Tek®Screwsというブランド名で呼ばれることもある。これらのねじは、ねじのドリル形状のポイントによって識別することができ、金属と金属や木材を締結するなどの様々なアプリケーション用に設計されています。さらに、セルフドリリングネジは下穴を必要としないため、取り付け時間とコストを削減し、追加の穴あけの必要性を低減します。このような他の機能性とコスト削減の特徴は、セルフドリリングネジは、金属建築のための明確な選択肢となっています。ドリルポイントには1から5までの番号が振られており、番号が大きくなるにつれてドリルできる鋼材の量が増えます。一般的に、セルフドリリングスクリューはライトレール用途に使用されますが、#5のドリルポイントは、鋼の1/2を掘削し、保持することができます。
So self-drilling screws are also self-drilling screws, but all self-drilling screws are not self-drilling hammers. Self-drilling screws do not require pilot holes, but they can be self-drilling. Self-drilling screws cannot drill through metal and require a pilot hole. These screws are not interchangeable, and mixing the two may cause a lot of trouble or cause failures in the field.
8,Self drilling Screws Supplier in China:Have you exported your self drilling screws before?
As you know,Prince Fastgener as a professional fastener manufacturer and supplier in China for more than 30 years, we cooperated with the international clients to help them import the self drilling from us made them more profits, because they buy the fasteners from ねじ工場 をダイレクトに使う。
We exported the self drilling screws to USA,UK,Australia,Canada,Russia,Brazil,Mexico,UAE and other countries,get lots of positive feedbacks from the clients.
9,Self drilling Screws Supplier in China:What types of business you are support to?
プリンスファスナーは、すべてのクライアントに開かれている、私たちの現在のクライアントは、ファスナーの販売代理店、ハードウェア卸売業者、ハードウェアショップ、ファスナーディーラー、ファスナートレーダー、または統合された製品の輸入業者が含まれています。
我々はまた、エンドユーザーの注文を受け付け、通常、彼らは私たちが行う必要があります。 カスタマイズ・スクリュー という注文を受けた。
10,Self drilling Screws Supplier in China:Will you provide free self drilling screw samples for clients?
For the standard self drilling screws,Prince Fastener can provide free samples for you to check the quality and ensure that we are your right ファスナーサプライヤー国際宅急便の料金を払う余裕があるなら。
11,What Tips for Installing Self drilling Screws?
The self-drilling and self-tapping screw is a unique and versatile screw. Its design allows it to drill itself into the metal and form threads in the hole. It is commonly used to attach steel siding or roofing but can also be used in other applications where pre-made holes are not available or convenient. Given that this type of screw may be the right solution for your application, here are 4 factors to keep in mind.
1. Length of the drilling slot
The length of the drilling slot must be greater than the thickness of the material being drilled. If the material is too thick, chips cannot be discharged, leading to severe heat generation and damage to the screw or the matching fabric. The cutting edge length must be such that the drilling operation can be completed before the threads begin to form; otherwise, damage may occur.
2. Pitch
For thinner sheet metal, coarse threads (wider thread pitch) are recommended. Fine lines for thicker metals (3/8 to 1/2″ thick) provide less driving torque and better results.
3. Thread Length
The thread length of the screw should be long enough to fully engage the base metal, keeping in mind that the first few threads are not fully formed. Two to three lines should appear on the back side of the substrate.
4. Installation tools
Special tools for self-drilling and self-tapping screws supplier are available in both corded and cordless versions, with speeds up to 2500 rpm for fast screw installation. Standard drillers or screwdrivers can also be used, but impact screwdrivers are not recommended for structural hard joint applications. These tools often have a depth gauge on the head so that the screw head can be disengaged after the screw is properly installed. Some tools may also have an adjustable clutch for proper torque setting.
12,What processes do we need to be careful about when manufacturing and producing Self-drilling screw?
Self-drilling screw are the basic parts of machinery and necessary hardware screws in industry. The demand for Self-drilling screw is a best seller and the first choice of many people today. Therefore many manufacturers have chosen to manufacture carbon steel, low alloy steel and non-ferrous materials to ensure that Self-drilling screw can function in harsh environments or other dangerous projects. But when Self-drilling screw need to meet severe corrosion or high-strength conditions, many manufacturers use paired stainless steel and super-strength stainless steel to produce Self-drilling screw. Look seemingly simple, but in the manufacturing and maintenance of the self drilling screws supplier or there are a few points we need to pay attention to
Rinsing is very important for the first step of the drill tail screw because the process of rinsing the drill tail screw will inevitably leave residues on the surface. The rinsing step is after cleaning with silicate cleaner. In addition, Self-drilling screw should be stacked neatly during the tempering and heating process. Otherwise, it will lead to slight oxidation in the quenching oil. The phenomenon of slipping wire of drill tail screws is also something we need to pay attention to. Most of the reasons for slippery wire is the raw material depleted of carbon. Pickling is also a very important point of the drill tail screw to remove the surface of the wire surface of a layer of oxidation film, while the wire surface lubrication for wire drawing. Drill tail screw head forming is to complete the appearance of the product, the shape of the tooth shape. The last thing is definitely to pack the produced Self-drilling screw. The products should be boxed/boxed according to the standard or customer requirements.
Prince Fastener produces door and window screws, curtain wall screws, Self-drilling screw, composite screws, stainless steel Self-drilling screw, high-strength carbon steel screws, stainless steel fasteners, photovoltaic bracket bolts, screws for light steel houses, screws for solar panels, etc.
13,Does Prince Fastener provide self drilling screw with wings and self drilling screw with washer?
Yes,if you have any special requests to the self drilling screws,just let us know your ideas,then we will make it true for you,because Prince Fastener have experienced product development department and staffs,we could design and produce the products as client’s requests,so we prodive OEM/ODM fastener services,to provide customized fastener for you.
14,About the self drilling screw size chart
You can find many types of screws for different tasks. While many such as wood screws require pilot holes in thicker materials, other screws used for plates or thinner materials are very different. Self-tapping screws are a great addition because they do not rely as much on this degree of pilot hole.
Self-drilling screw:Self-drilling screws are available in csd (mechanical teeth),bsd (self-tapping ab teeth). Its tooth pitch or number of teeth can be referred to mechanical screws (csd teeth) and self-tapping screws (bsd teeth), respectively.
The angle of the tooth hill and the angle of the tail tip: the angle of the tooth hill is the angle between the side of the tooth and the side of the tooth, and the angle of the tail tip is the tip angle of the unending thread.
- Self-tapping screw teeth: tooth hill angle of 60 °, the tail tip angle of 45 ° ± 5 °.
- wall plate nail: tooth angle of 60 °, (also can be produced according to customer requirements, such as 45 ° ± 5 °) the tail tip angle of 25 ° ± 3 °.
- Plywood screw チップボードネジ卸売) angle of 40 ° ± 3 °, the tail tip angle of 25 ° ± 3 ° or 34 ° ± 3 ° (customer special requirements).
- Self tapping screws: the angle of 60 ° ± 5 °, the tail for different specifications of the product selection of different types of pinch tail, pinch tail of the main geometric parameters for the pinch tail diameter and the amount of extension.
Some self-tapping screws are also self-drilling, combining a drilling-like action with fastener installation. Although you are using the same principle as other screws, they create their own holes with coarse threads.
Prince Fastener produces all kinds of self-drilling screws, For more information about the self-drilling screw size chart, please contact Prince Fastener, we will provide you with details.
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