This A325 heavy hex bolt from 1 1/8-7 x 7 is made of high-grade steel

5/16-24 x 1 3/4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (800)

304 and 305 series stainless steels so 18-8 is used at times to designate any and all of those alloy groups

3/4-10 x 3 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (25)

1 1/4-7 x 3 1/2 A325 Type 1 Heavy Hex Bolt Plain - Bulk Keg (120) 3/8-16 Socket Cap Screws Alloy This A325 heavy hex boltThis 1 1 4 7 x 3 1 2 A325 Type 1 Heavy Hex Bolt comes in a 120 unit bulk keg. Made from high strength steel, these bolts are designed for heavy duty applications and feature a plain finish.