3/4"-16 x 1-1/4" Zinc Plated Steel Fine Thread Hex Jam Nuts (4 pcs.)

Diameter: 3/4"
Diameter 2: 1-1/4"
Thickness: 27/64"
Material: Steel
Finish: Zinc
Driver Type: 1-1/8" Wrench
Thread Size: 16 (Fine)
Shape: Jam Nut
Type: Jam Nut

Box of 4.

A jam nut is a low profile type of nut, typically half as tall as a standard nut. It is commonly used as a type of locknut, where it is "jammed" up against a standard nut to lock the two in place. It is also used in situations where a standard nut would not fit.