1/4-20 X 1-1/2″ Carriage Bolt Kit, Stainless Steel 304 Carriage Bolts Screws wit
1/4-20 X 1-1/2″ Carriage Bolt Kit, Stainless Steel 304 Carriage Bolts Screws with Hex Nuts & Flat Washers, round Head Square Neck, Full Thread, Black Finish, 12 Sets. Fastener Type Carriage Bolt. The square neck makes them self-locking when used within a square hole.