The Disc-Lock™ Heavy Hex Nut uses the same patented technology as our two and three piece locking nuts. When the assembly is subjected to vibration and/or shock, the interlocking cams attempt to rise against each other. Since the cam rise angles are greater than the pitch angle of the threads, the assembly locks and maintains the clamp load of the bolted connection, thereby maintaining joint integrity.

Features & Benefits
  • Patented Heavy-duty, self-locking designs
  • Can be used with bolts up to Class 10.9, Grade 8
  • One piece assembly
  • No washer required
  • 2 piece nuts coated in RoHS-compliant Magni® 565, 3 piece nuts coated in Geomet 321 (Other coatings available by special order)
  • Easy to install with standard tools
  • Easy to remove
  • Custom sizes available
  • No re-tightening needed once installed
  • Vibration proof according to MIL-STD-1312-7
Proven Applications
Disc-Lock™ Locking Nuts outperform standard nuts in a wide range of high stress, corrosive, and vibration-sensitive applications including:
  • Agriculture Equipment
  • Automotive
  • Construction Equipment
  • Heavy Rail
  • Logging Equipment
  • Marine
  • Military
  • Mining
  • Oil Drilling Equipment
  • Solar
  • Wind
  • Waste Management
Installation & Removal
The Disc-Lock™ Safety Wheel Nut is easy to install and remove. It is installed in exactly the same way as a standard wheel nut. Place the socket over the hexagon nut and hexagon flanged washer and tighten or loosen.
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Unit of Measure
Items
Heavy Hex Nuts

Disc-Lock™ 1/2 in. - 13 Thread Size Heavy Hex Nut
Heavy Hex Nuts

Disc-Lock™ 1/2 in. - 13 Thread Size Heavy Hex Nut
Heavy Hex Nuts

Disc-Lock™ 5/8 in. - 11 Thread Size Heavy Hex Nut
Heavy Hex Nuts

Disc-Lock™ 5/8 in. - 11 Thread Size Heavy Hex Nut
Heavy Hex Nuts

Disc-Lock™ 3/4 in. - 10 Thread Size Heavy Hex Nut
Description N/A The Disc-Lock™ Heavy Hex Nut uses the same patented technology as our two and three piece locking nuts. When the assembly is subjected to vibration and/or shock, the interlocking cams attempt to rise against each other. Since the cam rise angles are greater than the pitch angle of the threads, the assembly locks and maintains the clamp load of the bolted connection, thereby maintaining joint integrity.
Brands N/A Disc-Lock™
Thread Size N/A 1/2-13 N/A 1/2-13 N/A 5/8-11 N/A 5/8-11 N/A 3/4-10
Thread Type N/A Unified Coarse (UNC)
Weight N/A 21.82 kg48 lb N/A 21.82 kg48 lb N/A 20.91 kg46 lb N/A 20.91 kg46 lb N/A 15.46 kg34 lb
Box Quantity N/A 550 N/A 550 N/A 370 N/A 370 N/A 140
Coatings N/A Magni 565
Industry Standards/Compliance N/A ISO 9001:2008 ISO TS16949 MIL-STD-1312-7 N/A ISO 9001:2008 ISO TS16949 MIL-STD-1312-7 RoHS N/A ISO 9001:2008 ISO TS16949 MIL-STD-1312-7 N/A ISO 9001:2008 ISO TS16949 MIL-STD-1312-7 RoHS N/A ISO 9001:2008 ISO TS16949 MIL-STD-1312-7
Fastener Type N/A Heavy Hex
Package Type N/A Box
Features and Benefits N/A
  • Patented Heavy-duty, self-locking designs
  • Can be used with bolts up to Class 10.9, Grade 8
  • One piece assembly
  • No washer required
  • 2 piece nuts coated in RoHS-compliant Magni® 565, 3 piece nuts coated in Geomet 321 (Other coatings available by special order)
  • Easy to install with standard tools
  • Easy to remove
  • Custom sizes available
  • No re-tightening needed once installed
  • Vibration proof according to MIL-STD-1312-7
Proven Applications N/A Disc-Lock™ Locking Nuts outperform standard nuts in a wide range of high stress, corrosive, and vibration-sensitive applications including:
  • Agriculture Equipment
  • Automotive
  • Construction Equipment
  • Heavy Rail
  • Logging Equipment
  • Marine
  • Military
  • Mining
  • Oil Drilling Equipment
  • Solar
  • Wind
  • Waste Management
Safety Wheel Nut N/A Disc-Lock™'s three piece wedge locking nut in size M22 – our Safety Wheel Nut - is specifically designed to prevent wheel loss from commercial vehicles such as trucks, trailers and buses. Disc-Lock™ Safety Wheel Nuts have been proven to provide better joint protection than that of standard wheel nuts. The combination of lateral, bending forces on the wheels due to cornering, and torsional forces due to braking and acceleration cause Disc-Lock™ Safety Wheel Nuts to lock, maintaining clamp force.

Disc-Lock™'s Safety Wheel Nut consistently performs with class 8.8, Grade 5 bolts.
Installation and Removal N/A The Disc-Lock™ Safety Wheel Nut is easy to install and remove. It is installed in exactly the same way as a standard wheel nut. Place the socket over the hexagon nut and hexagon flanged washer and tighten or loosen.
Resources N/A Disc-Lock Nut Catalog