3/8-16 X 7/8" 馬車螺絲 | 全螺紋 | A307 Grade A 普通鋼 (200 / 包)

Used these for a bench repair and the square neck grabbed the wood perfectly, no spinning when tightening. The 200-count box means I've got plenty left for future projects. Plain steel is fine for indoor use with a little paint on top.

The square neck under the rounded head pulled in perfectly when I tightened them, so I didn’t need a second person to hold the bolt still. Worked great for securing a heavy gate hinge, and the plain steel finish is exactly what I expected for the price.

I needed these for a quick deck repair, and the fully threaded design made it easy to get a solid bite without any spinning. The square neck seated perfectly in the wood, holding fast while I tightened the nut. They're plain steel, so I'll hit them with some paint, but for the price of a 200-pack, t