S-90675A029 1/4"-20 Locknuts
Locknuts
Image may differ from product. See technical specification for details.
Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
Washer Parameters
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior vibration resistance through integrated external-tooth lock washer that bites into surfaces, preventing loosening under dynamic loads
- Enhanced corrosion protection with zinc-plated steel construction, extending service life in harsh industrial environments
- Reliable thread engagement with Class 2B thread fit ensuring consistent performance and easy assembly
- High torque capability through standard external hex drive design for secure installation with common tools
- Optimized for coarse thread applications with 1/4"-20 UNC threading providing excellent resistance to cross-threading
- Dual-material durability combining steel nut body with steel lock washer for uniform strength characteristics
- Industry-standard compatibility with 7/16" hex profile fitting standard wrenches across multiple sectors
Professional Applications & Engineering Value
This zinc-plated steel locknut with integrated external-tooth lock washer addresses critical vibration-induced loosening challenges in heavy-duty industrial applications. The UNC coarse thread design combined with Class 2B thread fit provides reliable fastening in automotive assemblies, machinery frames, and industrial equipment where constant motion and stress would compromise standard fasteners. The external hex drive enables high-torque installation while the lock washer's teeth create permanent resistance against rotational forces, eliminating the need for secondary locking mechanisms. This engineered solution delivers secure fastening performance in high-vibration environments while maintaining corrosion resistance through zinc plating for extended service life.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2B thread fit tolerance for optimal engagement. Features 1/4"-20 UNC coarse thread with right-hand direction and standard hex profile (7/16" width). Constructed from zinc-plated steel with integrated external-tooth lock washer (0.5" OD) for positive locking action. Complies with industry standards for industrial fasteners and suitable for applications requiring reliable vibration resistance.
