Self tapping screws are a class of threaded fastener that shape threads (tapping threads) as the screw is pushed into a pre-drilled hole. Prince fastener Self tapping screws consist of thread cutting, thread rolling, and self drilling screws.
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Material: Steel，stainless, etc.
Standards: GB,ANSI,ASME,DIN,JIS,UNI,NF, or according to Customer’s requirements, etc.
Size: Diameter from 2.9mm-6.3mm, length from 6.5mm-120mm.
Head: Hexagon, Round, pan, countersunk, truss, oval, etc.
Slot: Philips, pozi, square, torx, slotted, etc.
Finish: Zinc, Chrome, Electrophoresis, Dacromet, Ruspert, etc.
Salt mist of time: 24hrs-1000hrs
Color: White, yellow, black, silver, colorful, etc.
Usage: Furniture, appliance, automobile, electronic industry, hardware &electrical Machinery, building, infrastructure, aviation, etc.
Self Tapping Flat Head Screws are used in a range of purposes ranging from DIY carpentry to surgery.
A Prince fastener Self Tapping Flat Head Screws Manufacturer can precisely be described in reality a tapping screw, however is additionally usually referred to as a sheet
metallic screw, for the reason that they are used so closely in the sheet steel trade.
Whichever identify is used, a Prince fastener Self Tapping Flat Head Screws (or sheet metallic screw), is unique as such due to the fact it consists of shape
mating threads (thereby “tapping” the threads) in a pre-drilled gap into which they are driven.
Prince Fastener Is Here for Creating Quality Screws With Competitive Costs for You,and Offer the Technical Supports and Exclusive Services for Your Business.
Basic concepts of Prince Fastener screw production
1、Prince Fastener Manufacturing screw can be divided into: cold heading, hot machining (turning, milling, etc.)
2、Cold heading is the use of plastic metal, by using cold mechanical pressure or drawing, reaches the metal solid deformation of.
3、Hot upsetting is the material after heating and pressure processing make the shape of the material to meet the
designrequirements.
4、Prince Fastener Machining is a small batch of special or special bolts of the six corners of the head is turned into after the milling.
5、 Screw bolt thread: mechanical and manual threading, similar to die.
6、 Milling tail: generally completed by the end of the Prince Fastener cutting machine.
7、 The difference between cold and hot upset: cold heading bolts` surface are more beautiful, dozen red bolt surface oxide skindoes not look good; cold heading high production is efficiency; general Prince Fastener M24 bolts will need to play red;
Analysis of the causes of the phenomenon and the causes of the forming process
1、Eccentric: two red and improper installation and adjustment machine.
2、Minow: a poor installation and improper Prince Fastener adjustment machine at.
3、Head is not round: the choice of a die or a punch forming is not enough.
4、Play the mode of crack: crack or die R angle, so that the model is hit by the two collision.
5、Head double: bad punch.
6、Flash: a bad, punching molding is mainly between punch and die hole clearance is too large or too short by red bars.
7、Crack angle: the punch needle burst or two punch and punch is not heavy.
8、Head cracking: material, or a die using error (such as pan head Hexagon washer head of a die), and lubricating oil.
Analysis of adverse phenomena and causes of common rolling
1、Processing crack: tooth plate and adjust the Prince Fastener old machine.
2、Blunt tail: the machine is not properly adjusted, the tooth plate is too old.
3、Crooked tail: the control screw on the seat board seat is too tight.
4、Tail: tooth wear plate and improper adjustment machine.
Prince Fastener own advanced manufacturing equipments introduced from Taiwan such as Head Making machines, Thread Rolling machines, Net Furnace and examining machines like Micro Hardness Tester and Microstructure Tester. We can provide the products you want with good qualities and competitive prices!
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