5/16"-18 Socket Head Cap Screw, Plain Steel, 3/4 in Length, 100 PK Socket screws are commonly used in assemblies that do not provide sufficient clearance for a conventional wrench or socket..
A flat washer is a thin, usually round, plate with a hole in the middle that is normally used to distribute the load of a threaded fastener.Flat Washer, For Screw Size 5/8" ,Steel Zinc Yellow Finish, 10 PK SAE flat washers are machined to a tighter specification and have a smaller outside diameter..
Flat Washer, For Screw Size #6 ,Steel Zinc Plated Finish, 3950 PK SAE flat washers are machined to a tighter specification and have a smaller outside diameter.