Black Hex Head Quarter Turn DZUS Button Fasteners are machined from 7075 billet aluminum which is stronger than mild steel, providing superior strength with a weight savings of one third that of a steel type fastener. Made in U.S.A.
- Size: #6, 7/16"
- Shank Diameter: .400
- Grip Length: .650
- Head: Flat, Flush, Counter Sunk
- Finish: Matte Black Powder Coated Head
- Package: 50 pack
*** NHRA ACCEPTED *** NHRA does not allow "all black" fasteners like an anodized finish due to the fact the fasteners cannot be seen on the race track. We specifically coated just the head with a durable Matte Black Powder Coat finish to meet this rule requirement.