1/8" Nickel Plated Chicago screws with open hole. These Chicago screws are made with solid brass and nickel plated. The post has a hole in the top.
Post - 1/8"
Cap - 7/16"
Screw Diameter - 1/8"
Post Diameter - 3/16"
A #12c punch works the best to make the holes for these screws.
Sold in packs of 50 sets.