Item description for 3/8"-16 x 1-1/2" Zinc Spade Head Thumb Screws (12 pcs.)

Diameter: 3/8"
Length: 1-1/2"
Material: Steel
Finish: Zinc
Head Style: Spade
Thread Size: 16 (Coarse)
Type: Thumb Screw

Box of 12.

A thumb screw is a threaded fastener designed to be twisted into a tapped hole by hand without the use of tools.