Description
1 8 x 2 3 4 Grade 8 Hex Cap Screw Plain Domestic USA (10) 5 8 18 Socket Cap Screws Alloy 9 16 18 x 3 1 2 L9 9 16 18 x 3 1 2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (175) the expansion mechanism compresses and exerts force against the walls of the hole