Overview
The Lawson 80936M01 top lock nut is a Grade C all-metal fastener featuring a 1″-8 coarse thread and hexagonal design. Built from alloy steel with a cadmium finish, this nut resists corrosion and vibration loosening in demanding industrial applications. Supplied in a box of 25 units, it delivers reliable performance for machinery assembly, equipment mounting, and structural fastening.
Key Features
- Grade C Strength: Meets ASTM B695 and provides consistent holding power for industrial use.
- All-Metal Construction: No nylon insert—solid metal-to-metal locking via top surface deformation, ideal for applications up to elevated temperatures.
- Cadmium Finish: Corrosion protection suitable for indoor and moderate outdoor environments.
- 1″-8 Coarse Thread: Standard sizing for common machinery and structural bolts.
- Box of 25: Convenient unit count for job site use or inventory stocking.
Technical Specifications
- Thread Size: 1″-8 UNC (Unified National Coarse)
- Material: Alloy Steel
- Grade: Grade C
- Finish: Cadmium Plated
- Style: Top Lock (Self-Locking)
- Hex Size: 1-1/2″ across flats
- Quantity per Box: 25 units
- Weight per Box: Approximately 1 lb
Typical Applications
- Machinery assembly and equipment mounting
- Structural and frame fastening
- Motor and drive coupling connections
- Heavy equipment and industrial plant applications
- Vibration-prone assemblies where self-locking is required
- Indoor and moderate-moisture industrial environments
Compatibility & Replacements
Compatible With
- Any application using 1″-8 UNC thread bolts or studs
- Standard hex socket and wrench-driven fastening systems
- Industrial machinery and structural assembly work
Replaces / Drop-In Replacement For
- Other Grade C 1″-8 top lock nuts in cadmium or zinc finish
- Direct replacement for original Lawson 80936M01 units
- Compatible with equivalent all-metal top lock nut specifications from other manufacturers at the same thread and grade
Works With
- 1″-8 UNC metric and inch-scale bolt fastening systems
- Standard wrench and socket assembly tools
- ASTM B695 cadmium-plated fastener ecosystems
- High-temperature applications requiring all-metal locking (within Grade C load limits)
