ARP - 5/16-18 x 1.750 hex SS bolts (622-1750). 5/16-18 x 1.750 Hex SS Bolt. Fastener Type: ?. Hexagon Bolt. Material: ?. Stainless Steel. We focus on making purchasing online a pleasant experience. Our sales office is located in beautiful town of Redondo Beach, California, just a few miles South of Los Angeles International Airport.
