Detail & Specs
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Metric Hex Flange Bolts A2 Black Stainless Steel DIN 6921
The smooth, non-serrated flange surface ensures superior force distribution over a greater area, eliminating the need for a separate washer. To be used with locking or non-locking nuts or in a tapped hole, commonly used on vehicle frames and various automotive applications.
Flange bolts can be used with many different styles of locking and non-locking nuts to clamp tightly to whatever the bolt is being used to secure. A wrench is used to install and tighten hex flanged bolts.
Finish: Black Oxide
- Abrasion resistant, does not peel, chip or rub off
- Reduces friction, prevents galling
- Does not change the strength of the stainless steel
- Practically no dimensional change to base fastener
- The spray applied during the coating process wears off over time, revealing an attractive matte black finish
The black oxide coating per MIL-DTL-13924, Class 4 on 300 series corrosion resistant steel meets 96 hours of resistance in a 5% salt spray (fog) test in accordance with ASTM B117. We recommend using stainless steel installation tools to prevent extraneous rust.
Stainless steel flange screw are commonly used in damp environments. They are popular across a wide range of industries: automotive, agriculture, architectural, sanitation, food processing, clean energy, etc.
For any application involving marine (salt water), use A4 / 316 Stainless Steel material, available as bulk special order.
Also known as
Anti-corrosive external hex drive flange bolt, one-piece flange bolt for mechanical applications, non-serrated flange screw, external hex bolt with integral washer.
