Description
1 4" 20 x 1 1 2" 18 8 Stainless Steel Coarse Thread Slotted Round Head Machine Screws Point Type_Sharp Diameter 2: 4 1 2" Box Size:800 pcs. 09806 Diameter 2_21mm Length 24 Diameter 2: 4 1 2" A coupling nut is a long nut tapped from each side to meet in the middle