SC Fastening Systems, LLC.
8531 S. Freeway Dr
Macedonia, Ohio 44056
Call us: 330.468.3300
Email us: info@scfastening.com
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Top Lock Nuts

Top lock nuts have a tapered top to prevent loosening of the bolt.  This lock nut slightly distorts threads of the mating part to achieve the locking application.  The mating part cannot be reused after application.  Top lock nuts are commonly used in the automotive industry.

toplock nut_2015
Unit of Measure
Items toplock nut_2015
TPLK-9-025-20-YC
1/4-20 Toplock Nut Grade 9 Yellow Cadmium
Price $29.94
 Item Image - Top Lock Nuts Grade C
TPLK-C-025-20-Z
1/4-20 Toplock Nut Grade C Zinc
Price $5.59
 toplock nut_2015
TPLK-9-025-28-YC
1/4-28 Toplock Nut Grade 9 Yellow Cadmium
Price $35.43
 toplock nut_2015
TPLK-C-025-28-Z
1/4-28 Toplock Nut Grade C Zinc
Price $6.50
 toplock nut_2015
TPLK-9-031-18-YC
5/16-18 Toplock Nut Grade 9 Yellow Cadmium
Price $40.20
System of Measurement N/A Standard
Diameter N/A 1/4"-20 N/A 1/4"-20 N/A 1/4"-28 N/A 1/4"-28 N/A 5/16"-18
Grade N/A 9 N/A C N/A 9 N/A C N/A 9
Coating N/A Yellow Cadmium N/A Zinc N/A Yellow Cadmium N/A Zinc N/A Yellow Cadmium
Thread Type N/A Coarse N/A Coarse N/A Fine N/A Fine N/A Coarse
Wt. Per 100 N/A
Specification N/A