Nominal Size: 1/2"
Thread: 13 TPI (Coarse)
Width Across Flats: 3/4"
Height: 5/16"
Across-Corners Size: 27/32"
Material: Steel
Finish: Zinc
Shape: Jam Nut
Type: Jam Nut
Box of 6.
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.