DIN 931 A4-70 Stainless Steel SS316 Hex Bolt
We are a professional manufacturer of DIN 931 A4-70 SS Stainless Steel 316 Hex Bolt in China,
DIN 931 – Hexagon head bolts with shank
Current norm: DIN EN ISO 4014
Equivalent norms: ISO 4014; CSN 021101; PN 82101; UNI 5737; EU 24014;
Our DIN 931 A4-70 hex bolt is made of stainless steel 316 which has super corrosion resistance.
- The “A4” classification refers to stainless steel grade A4, which is commonly known as 316 stainless steel. This material provides excellent resistance to corrosion, especially in marine or aggressive chemical environments.
- A4 Stainless Steel contains molybdenum, which offers increased resistance to chloride-induced stress corrosion cracking compared to other stainless steel grades.
DIN 931 bolts are partially threaded, with the threading extending along part of the length of the bolt.
Metric thread with coarse pitch, stock size from M6 to M48.
DIN 931 / ISO 4014 Technical Specifications. Metric DIN 931 Hexagon Head Cap Screws/Bolts Part Thread
Hexagon Bolts are created to DIN 931, and are a partially threaded fastener with a hexagon-shaped head that is usually fixed with a spanner or socket tool.
Hosting a machine thread, these bolts are suitable for use with either a nut or within a pre-tapped hole.
Materials can include various grades of Steel, including Grade 5 (5.6), Grade 8 (8.8), Grade 10 (10.9) and Grade 12 (12.9) with Zinc plating, Zinc and yellow, galvanising or self colour are also available
As standard, they are available in sizes from M3 to M64, with non-standard sizes and threads
The DIN 931 A4-70 hex bolt is a type of fastener that adheres to the DIN 931 standard for hexagonal bolts
Specifications of DIN 931 A4-70 Hex Bolt
- Standard: DIN 931 (German Standard for Hexagon Head Bolts)
- Material: A4 (Stainless Steel 316)
- Tensile Strength: 700 MPa (70 N/mm²)
- Head Type: Hexagonal
- Thread Type: Metric (ISO)
- Finish: Typically available in a natural, passivated finish for stainless steel or with PTFE coatings.
