Flat Washer, For Screw Size 5/16" , Steel Galvanized Finish, 100 PK, Prime-Line, Mfr#: 9079989

Flat washers are the most widely used types of general purpose washers and are most often paired with standard bolts and hex nuts. They distribute the force from the bolt head and nut over a larger area which serves to protect the surface of the material you are working with. •Size: 5/16 inch X 7/8 inch OD •Most commonly used and versatile washer •Increases bearing surface and distributes load over a larger area •Can be used to prevent a screw or bolt from going into a hole too far •Can also be used as spacers by stacking more than one •Specification(s) Met: ASME B18.21.1