Gold Member Since 2016
Hunan LETO Fastener Manufacturing Co., Ltd.

Screw, Bolt, Fastener manufacturer / supplier in China, offering DIN7991-Hexagon Socket Countersunk Head Screws, Hexagon Socket Head Cap Screw-Carbon Steel 8.8 Zinc Flake Coated, ISO 2338-Parallel Pin, of Hardened Steel and Martensitic Stainless Steel and so on.

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Supplier Homepage Product Screws Countersunk head DIN7991-Hexagon Socket Countersunk Head Screws

DIN7991-Hexagon Socket Countersunk Head Screws

FOB Price: Get Latest Price
Min. Order: 10,000 Pieces
Port: Shenzhen, China
Production Capacity: 1000000 Pieces/Month
Payment Terms: L/C, T/T, D/P, Western Union, Paypal

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Basic Info
  • Material: Carbon Steel
  • Groove: Hexagon
  • Head Style: Counter Sunk Bolt
  • Grade: 8.8 10.9 12.9
  • Trademark: LETO
  • Specification: M3-M20
  • HS Code: 7318150000
  • Type: Countersunk Head
  • Connection: Common Bolt
  • Standard: GB, ISO
  • Finish: Black Oxide/Electroplating
  • Transport Package: Packaged in Cartons on Wooden Pallet
  • Origin: China
Product Description
1 Product attributes
(1) Product type:Standard parts.
(2) Material:Carbon steel.
(3)  Property class:
8.8 10.9 12.9 per ISO 898-1.
(4)  Specification:M3-M20.
(5)  Length:
(6)  Head style: Hexagon Socket Countersunk Head.
(7)  Shank style:Normal shank.
(8)  Thread style:Tapping tread.
(9)  Product grade:A.
(10)  End style:chamfered end.
(11)  Finish:
Black oxide/Electroplating.
(12)  Quality control:ISO 9001.

2 Pictures

DIN7991-Hexagon Socket Countersunk Head Screws

3 Specifications and reference international standards
General requirementsISO 8992
Thread  Tolerances6g
Thread  StandardsISO 261,ISO 965-2,ISO 965-3
Mechanical propertyProperty class8.8 10.9 12.9
StandardsISO 898-1
ToleranceProduct gradeA
StandardsISO 4759-1
FinishBlack oxide
Requirements for electrolytically plated plating are specified in ISO4042.
AcceptabilityAcceptance inspection is specficed in ISO3269.
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