{"id":2193,"date":"2022-04-07T15:08:38","date_gmt":"2022-04-07T07:08:38","guid":{"rendered":"https:\/\/princefastener.com\/?p=2193"},"modified":"2022-04-08T15:18:25","modified_gmt":"2022-04-08T07:18:25","slug":"parafusos-sextavados-escareados-din7991","status":"publish","type":"post","link":"https:\/\/princefastener.com\/pt\/din7991-countersunk-hexagon-socket-cap-screws\/","title":{"rendered":"Prince Fastener: O \u00edndice de dureza de 8,8 grau DIN7991 Parafusos de cabe\u00e7a hexagonal rebaixada"},"content":{"rendered":"
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O \u00edndice de dureza de parafusos sextavados de cabe\u00e7a escareada DIN7991 de 8,8 graus<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Os parafusos de cabe\u00e7a cil\u00edndrica DIN7991 de grau 8.8 s\u00e3o classificados de acordo com a dureza do fio do parafuso, for\u00e7a de tra\u00e7\u00e3o, resist\u00eancia ao escoamento, etc. Diferentes materiais de produtos devem ter diferentes graus de parafusos de cabe\u00e7a cil\u00edndrica hexagonal correspondentes a eles. Todos os parafusos de cabe\u00e7a sextavada t\u00eam os seguintes graus:<\/p>

\"parafusos<\/p>

Os parafusos sextavados de cabe\u00e7a cil\u00edndrica s\u00e3o divididos em comuns e de alta resist\u00eancia de acordo com a resist\u00eancia do grau. Os parafusos de cabe\u00e7a cil\u00edndrica comuns referem-se ao grau 4.8 e os parafusos de cabe\u00e7a cil\u00edndrica de alta resist\u00eancia referem-se aos graus 8.8 e superiores, incluindo os graus 10.9 e 12.9. Parafusos de cabe\u00e7a cil\u00edndrica de grau 12.9 geralmente se referem a parafusos de cabe\u00e7a sextavada preta recartilhada natural com \u00f3leo.<\/p>

Os graus de desempenho dos parafusos de cabe\u00e7a sextavada para conex\u00e3o de estrutura de a\u00e7o s\u00e3o divididos em mais de 10 graus, como 3,6, 4,6, 4,8, 5,6, 6,8, 8,8, 9,8, 10,9, 12,9, etc. Os parafusos de grau 8,8 e acima s\u00e3o feito de liga de a\u00e7o de baixo carbono ou a\u00e7o de m\u00e9dio carbono. Ap\u00f3s o tratamento t\u00e9rmico (t\u00eampera e revenimento), eles s\u00e3o geralmente chamados de parafusos de alta resist\u00eancia e os demais s\u00e3o geralmente chamados de parafusos comuns. A etiqueta do grau de desempenho do parafuso consiste em duas partes de n\u00fameros, que representam o valor nominal da resist\u00eancia \u00e0 tra\u00e7\u00e3o e a taxa de escoamento do material do parafuso.<\/p>

prendedor de pr\u00edncipe<\/a>\u00a0 foco em categorias de produtos:<\/p>

\"parafuso<\/p>

Parafusos sextavados<\/a> GB5782 DIN931 (ISO4014), GB5783 DIN933 (ISO4017), DIN609<\/a> (parafusos refinados)<\/p>

Parafuso sextavado GB70 DIN912 (ISO4762), DIN7984, DIN6912, ISO7380, DIN910, ISO7379,<\/p>

Almofada plana GB97, DIN125, DIN433, DIN1440, DIN6916, DIN7989A, DIN9021,<\/p>

Arruela de press\u00e3o DIN127, DIN128,<\/p>

Arruela de press\u00e3o NORD LOCK arruela de press\u00e3o, arruela dentada dupla face, arruela de press\u00e3o externa (interna) serrilhada (DIN6798), arruela de press\u00e3o externa (interna) dentada (DIN6797), arruela ondulada DIN137, lava-lou\u00e7as DIN2093, DIN6796, parafusos em forma de T DIN186, olhal parafusos DIN580, parafusos de carruagem GB12.GB14.DIN603,<\/p>

Localiza\u00e7\u00e3o dos pinos DIN94, DIN1473, DIN6325, DIN7979,<\/p>

Parafusos de ajuste DIN913, DIN914, DIN915, DIN916, DIN906, DIN908, parafusos Phillips DIN7985, DIN965, parafusos de fenda DIN84, parafusos de fenda DIN7997-Z (NEN2253), DIN7995-Z, parafusos Phillips<\/a>,<\/p>

Barra roscada DIN975, DIN976, prisioneiro DIN939(NEN2332), DIN938(NEN2331), com parafuso de flange DIN6900, ISO7380, DIN6921, com parafuso de bloqueio de flange, parafuso olho de peixe DIN444,<\/p>

Porca sextavada DIN934 (ISO4032), Porca sextavada fina DIN439, Tampa DIN1587, DIN917, Porca de autotravamento de nylon DIN982, DIN985, Porca quadrada DIN562, DIN557, Porca de press\u00e3o DIN7967, Porca redonda DIN1804W, Porca de solda DIN928 (Porca de solda quadrada), DIN9299 (porca de solda hexagonal), porca de flange DIN6923,<\/p>

Padr\u00e3o do produto: padr\u00e3o alem\u00e3o DIN, padr\u00e3o internacional ISO, padr\u00e3o americano ANSI, padr\u00e3o brit\u00e2nico BS, padr\u00e3o europeu EN, padr\u00e3o holand\u00eas NEN, padr\u00e3o franc\u00eas NF, padr\u00e3o nacional GB \u2026 Material do produto: a\u00e7o inoxid\u00e1vel 304.316.316L.310S.25\/20. B8.B8M.904.904L.A2.A4.A2-70.A4-70.A4-80\u2026<\/p>

\"Fornecedor<\/p>

Os materiais de a\u00e7o carbono incluem: a\u00e7o 20#.35K.45#, 30CrMo.35CrMo.40CrMo.42CrMo.SMC435.42CrMoA, etc. 4.8, 8.8, 10.9, 12.9;<\/p>

Outros materiais s\u00e3o parafusos de cobre, parafusos de alum\u00ednio, parafusos de liga de tit\u00e2nio, nylon, pl\u00e1stico, poli\u00e9ter \u00e9ter cetona, PTFE politetrafluoretileno, etc.<\/p>

Tratamento de superf\u00edcie: O tratamento de superf\u00edcie do produto inclui: prote\u00e7\u00e3o ambiental (RoHS) galvanizado, colorido, azul e branco, cobre, estanho, espa\u00e7ador, Teflon, Dacromet, cromo, prata, bronze, imita\u00e7\u00e3o de ouro, niquelagem, chapeamento preto, chapeamento verde escuro, escurecimento t\u00edpico, alto escurecimento, etc.; Parafusos de cabe\u00e7a sextavada, parafusos de cabe\u00e7a sextavada, parafusos de rosca fina e outros produtos.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tContacte para mais informa\u00e7\u00f5es<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

Top 10 Self-Tapping Screw Manufacturer in China According to China Customs data, the import quantity of self-tapping screws in China from January to December 2019 was 10,892.49 tons. The import amount was 89,087,900 USD; the export quantity of self tapping screws from January to December 2019 was 304,516.61 tons, and the export amount was 630,912,200 […]<\/p>\n","protected":false},"author":1,"featured_media":2196,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"0","_seopress_titles_title":"%%title%% -Prince Fastener","_seopress_titles_desc":"A grand event for industrial rice, fasteners, supply chain, industrial chain, and end-usersExhibition time: June 1-3, 2022The 8.8-grade DIN7991 countersunk head socket head cap screws are classified according to the hardness of the screw wire, tensile force, yield strength, 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