Product Description
Engineered for maximum security in high-vibration environments, our Heavy-Duty Hex Lock Nut ensures critical fasteners stay securely tightened, even under extreme loads. Manufactured from high-grade alloy steel and featuring a self-locking nylon insert, this nut prevents loosening caused by road shocks, trailer flex, and temperature fluctuations. Designed specifically for commercial trailers, it meets DOT and ISO standards for safety and reliability.
Product Classification
Type:
Self-Locking Hex Nut
01
Category:
Commercial Vehicle Fasteners
02
Application:
Wheel hub assemblies
Suspension mounting systems
Brake component retention
Fifth wheel and kingpin connections
03
Compatibility:
SAE & Metric bolt sizes (M12-M30, 1/2"-1-1/4")
04
Technical Specifications
| Thread Sizes | M12-M30 / 1/2"-1-1/4" |
| Torque Retention | 90% after 50,000 vibration cycles |
| Tensile Strength | 150,000 psi (min) |
| Finish Options | Zinc-plated, black oxide, or stainless steel |
Key Features
Secure Locking Mechanism
Nylon-insert technology maintains constant torque retention
Distortion-resistant design prevents thread deformation
Pre-applied thread locker for immediate vibration resistance
High-Strength Construction
Grade 10 alloy steel (SAE J995 / DIN 934)
Heat-treated for hardness (Rockwell C 32-39)
Zinc-nickel plating (ISO 4042 compliant)
Corrosion & Wear Resistance
Salt-spray tested (1000+ hours per ASTM B117)
Self-lubricating threads reduce galling
Abrasion-resistant finish for long-term durability
Easy Installation & Maintenance
Standard hex profile (wrench-friendly)
Reusable up to 5 times without performance loss
Color-coded sizing for quick identification
Competitive Advantages
Eliminates Wheel-Off Risks – Meets FMCSA Sec. 393.75 requirements
DOT & TÜV Certified – Complies with ISO 2320 & DIN 985
30% Higher Clamping Force vs. standard flange nuts
10-Year Rust Protection Guarantee
Works in Extreme Temperatures (-40°F to +300°F)
Why Fleet Managers Trust Our Lock Nuts
Used by 3 of 5 Major U.S. Fleets
Proven in real-world operations
Reduces Maintenance Costs
No retorquing required
Prevents Costly Downtime
Eliminates loose fastener incidents
Fully Traceable Manufacturing
Laser-etched batch numbers
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