HILLMAN 883270 Hex Cap Screw, 5/16 in Thread, 1/2 in OAL, 305 Grade, Stainless Steel, Stainless, SAE Measuring

Hex cap screws are bolts with hexagonal heads and machine threads for use with a nut or in a tapped hole. These screws are bolts with a washer face under the head. Use these grade 18-8 partially threaded screws anywhere a hex bolt may be used. Tighten with a wrench or a drill. Parts feature a stainless steel finish for best-in-class corrosion resistance.