Grade 8, US, 5/16"

US Fasteners, Grade 8, 5/16"
Hex bolts Bolts with hexagonal heads and machine threads for use with a nut or in a tapped hole. Also known as hex cap screws or machine bolts.	Flange bolts Flange bolts have a flange on the bottom of the head that distributes the load like a washer.
Carriage bolts & Plow bolts Bolts with no drive and machine threads for use with a nut.	Nuts Nuts have internal machine threads, for use with machine thread bolts and screws.