1/4-20 x 7/8 Coarse Thread Socket Set Screw Cup Plain DPP17 They are ideal for use

They are ideal for use in structural applications

The 3/8 refers to the length of the screw

this lag screw delivers exceptional holding power and longevity

meaning that it can be used to create threads in metal without the need for a separate tapping operation

The flat head design allows for a flush fit when countersunk

1/4-20 x 7/8 Coarse Thread Socket Set Screw Cup Plain DPP17 They are ideal for use1 4 20 x 7 8 Coarse Thread Socket Set Screw Cup Plain is a type of screw that is used to secure objects in place. It has a 1 4 20 coarse thread, which means that it has 20 threads per inch. The screw is 7 8 inches long and has a cup shaped head. The head of the screw is plain, which means that it does not have any markings or decorations. The screw is made of steel and has a zinc plated finish, which helps to protect it from corrosion.