3/8"-16 Hex Bolts Cap Screws Grade 8 Yellow Zinc 1/2In, 2In, 3In, 4In, Up to 6In

Hex cap screws are partially threaded and provide much tighter tolerance than their fully threaded counterparts. Hex bolts are the most common construction fastener having a hex head that can be secured with a socket or wrench and mated with a nut or another internally threaded item.