Technical Standards: "length:2-1/4""--3-1/2"" Degree:21 degree. Plastic strip Nails,With diamond point. Finish:Bright and Electric Galv and HD Galv and Mech Galv. Shank:Smooth Shank and Ring Shank and Screw Shank. " Product Description: Framing, decking, sheathing, sub flooring, fencing, siding, pallet & crate construction.