Heavy equipment manufacturers rely on structural-grade fasteners that can handle vibration, torque, impact, and dirt. NAPPCO supplies the bolts, lockbolts, and threaded inserts trusted in construction, mining, and industrial equipment.
Heavy Equipment & Machinery Fasteners & Hardware

Fastening Solutions Built to Withstand Heavy Loads and Harsh Use
- Structural bolts and lockbolts from Huck, Stanley Gripco, and Spiralock
- Solid threaded inserts and self-locking nuts from KEYSERT and Atlas
- Heavy-duty latches and hinges from Southco and Vlier
- Retaining rings and snap components from Rotor Clip
Durable Solutions and Inventory Programs for Demanding Environments
We help OEMs reduce downtime and extend equipment life with rugged fastening solutions designed for field conditions.
- Inventory programs and MRO kits for ongoing maintenance
- Application support for vibration resistance and structural performance
- JIT replenishment for assembly lines
- VMI and bin stocking for field service depots

Popular Products for Heavy Equipment & Machinery Applications
These rugged fastening solutions are trusted in high-load, high-vibration applications across construction, mining, and agricultural equipment. They’re built to extend equipment life, support safety, and withstand extreme operating environments.

Structural & High-Tensile Bolts
Huck® BobTail, Huck® C50L, Stanley GRIPCO® Bolts

Vibration-Resistant Lockbolts
Huck® HuckBolt, Magna-Lok, Huck® BOM

Self-Locking Nuts & Inserts
Spiralock® Thread-Locking Inserts, KEYSERT® Solid Thread Inserts

Heavy-Duty Hinges & Latches
Southco® Heavy-Duty Hinges, Access Panels

Industrial Sealants & Adhesives
Sika® Sikaflex, DAP® Heavy-Duty Construction Adhesives