The Disc-Lock® Two Piece Locking Nut consists of two components each with interlocking cams that are joined together to form a one piece assembly.

The top component is a threaded hexagon nut with cams on the underside and a pilot that retains the washer. The bottom component is a hex flange washer with cams on the top and a smooth bearing surface.

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
Additional Information
Disc-Lock Wedge Locking Nuts are manufactured in Two and Three-Piece Designs (Safety Wheel Nut).

When the assembly is subjected to vibration and shock, the interlocking cams of the Disc-Lock Locking Nut attempt to rise against each other.

Because the angle of the cam is greater than the pitch angle of the thread on the stud, a wedging action takes place and the Disc-Lock™ Locking Nut locks and will not come loose, maintaining the clamp load and protecting the joint.

Note
The angle of the cam (DL) is greater than the pitch angle of the thread on the stud (T).
Request Information
Unit of Measure
Items
Two Piece Wedge Locking Nuts, logo

Disc-Lock™ 3/8 Inch (in) Thread Size (A) Two Piece Wedge Locking Nut
Two Piece Wedge Locking Nuts, logo

Disc-Lock™ 3/8 Inch (in) Thread Size (A) Two Piece Wedge Locking Nut
Two Piece Wedge Locking Nuts, logo

Disc-Lock™ 7/16 Inch (in) Thread Size (A) Two Piece Wedge Locking Nut
Two Piece Wedge Locking Nuts, logo

Disc-Lock™ 1/2 Inch (in) Thread Size (A) Two Piece Wedge Locking Nut
Two Piece Wedge Locking Nuts, logo

Disc-Lock™ 1/2 Inch (in) Thread Size (A) Two Piece Wedge Locking Nut
Description N/A The Disc-Lock™ Two Piece Locking Nut consists of two components each with interlocking cams that are joined together to form a one piece assembly.

The top component is a threaded hexagon nut with cams on the underside and a pilot that retains the washer. The bottom component is a hex flange washer with cams on the top and a smooth bearing surface.
Dimensions N/A


Brands N/A Disc-Lock™
Thread Size (A) N/A 3/8 in N/A 3/8 in N/A 7/16 in N/A 1/2 in N/A 1/2 in
Width Across Flats (B) N/A 0.59 in N/A 0.59 in N/A 0.75 in N/A 0.75 in N/A 0.75 in
Height (C) N/A 0.433 in N/A 0.433 in N/A 0.690 in N/A 0.690 in N/A 0.690 in
Flange Diameter (D) N/A 0.787 in N/A 0.787 in N/A 1.000 in N/A 1.000 in N/A 1.000 in
Box Quantity N/A 1,000 N/A 1,000 N/A 700 N/A 500 N/A 500
Coatings N/A Magni® 565
Industry Standards/Compliance 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 N/A ISO 9001:2008 ISO TS16949 MIL-STD-1312-7 N/A ISO 9001:2008 ISO TS16949 MIL-STD-1312-7
Package Type N/A Box
Fastener Type N/A Locknut
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.
Additional Information N/A Disc-Lock™ Wedge Locking Nuts are manufactured in Two and Three Piece Designs.

When the assembly is subjected to vibration and shock, the interlocking cams of the Disc-Lock™ Locking Nut attempt to rise against each other.

Because the angle of the cam is greater than the pitch angle of the thread on the stud, a wedging action takes place and the Disc-Lock™ Locking Nut locks and will not come loose, maintaining the clamp load and protecting the joint.
Note N/A The angle of the cam (DL) is greater than the pitch angle of the thread on the stud (T).
Resources N/A Disc-Lock Nut Catalog