Description:

An all-metal, one-piece, hex-shaped lock nut with round collar at its back end.

Material:

• Steel
• Stainless Steel

Grades: N/A

Markings: N/A

Plating:

• Plain Finish
• Zinc
• Cadmium Finish

How to Measure:

Thread diameter X side height X thickness

Application:

The collar is segmented with opposed slots cut into it above each corner of the nut. When the screw or bolt reaches the collar, the slotted portion expands which creates the prevailing torque locking action. The light hex variety has lesser across the flats dimension resulting in a light-weight part with the same strength as a heavy hex variety.

Abbreviation / Jargon:

• Lock nut

Part Number Prefix:

• 0FL*
• 1FL*

Styles / Types:

• Light Hex-Thin Height
• Light Hex-Full Height
• Heavy Hex-Full Height
• Heavy Hex-Thin Height