1 1/8-12X5 Fine Thread Hex Cap Screw Grade 8 Zinc Yellow Made in USA (Pack Qty 20) BC-11380CH8O

Designed for use in thin sheet metal when load bearing threads are necessary. The nut is pressed into a pre-drilled or punched hole, then force is applied to the top of the nut until the bearing surface at the outside diameter of the bottom of the nut is flush with the sheet metal to which it is attached. Steel: Carbon steel Stainless Steel: Type 303 stainless passivated to ASTM A 380 Nuts are case-hardened