Spade type thumb screws with shoulder

Thumb screws, Spade type with shoulder, Zinc plated steel, Coarse (standard) thread, 5/16"

Thumb screw diameter is measured on the outside of the threads.

Spade type thumb screw with shoulder diameter

Thumb screws, Spade type with shoulder, Zinc plated steel, Coarse (standard) thread, 5/16"

Diameter and Thread count