Hex jam nuts are thin hex nuts. They have coarse and fine machine screw threads, like hex nuts, but their reduced thickness results in a reduction in strength. They are used with small machine screws to save space or to "jam" against anothe rnut to create a locking action.
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A563 GRADE A HEAVY HEX JAM NUT, PLAIN (INCH)

1 HEAVY HEX JAM NUT A563 GRADE A
Web Price $188.27
A563 GRADE A HEAVY HEX JAM NUT, PLAIN (INCH)

1 1/2 HEAVY HEX JAM NUT A563 GRADE A
Web Price $174.64
A563 GRADE A HEAVY HEX JAM NUT, PLAIN (INCH)

1 3/4 HEAVY HEX JAM NUT A563 GRADE A
Web Price $156.53
A563 GRADE A HEAVY HEX JAM NUT, PLAIN (INCH)

2 HEAVY HEX JAM NUT A563 GRADE A
Web Price $211.86
Diameter N/A 1 N/A 1 1/2 N/A 1 3/4 N/A 2
Pitch N/A Coarse
Length N/A
Material N/A A563 Grade A
Finish N/A Plain
Package Quantity N/A 150 N/A 50 N/A 30 N/A 25