Metro Industries, Inc.
Online ordering is coming soon. To place an order, call 614-487-8200 or email metro@metroindinc.com.

Tri-lock Nut Steel

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How to measure: Lock nut (inch)
How to measure: Lock nut
Sold by the thread size of the bolt it fits. Thickness is measured overall.

1 part number

Size Thread Finish Material Thread Series Sold by In stock Part number
5/16" Diameter
5/16-18 Zinc 18 TPI Zinc Steel USS/Coarse Each Out of stock NL3-516