1/4 5/16 3/8 7/16 1/2" UNC SET SCREWS NUTS & WASHERS HEX HEAD BOLTS ZINC PLATED

Hex Bolts - UNC. 1/4" / 5/16" / 3/8" / 7/16" / 1/2" UNC Set Screws – Zinc Plated Steel (Hex Head Bolts with Nuts & Washers). UNC Bolts & Set Screws. Hex Bolts - UNF. Hex Full Nuts. Form A Flat Washers.

eBay