Huyett is a proud master distributor of Sherex Fastening Solutions, a domestic supplier of cam-locking washers and nuts. We carry a variety of materials and finishes for both single use and reusable installations.
Disc‑Lock Washers
- Standard duty, self‑locking design
- For use with bolts up to Class 10.9, Grade 8
- Available in sizes from #6 (M3) to 1‑1/2" (M38) - other sizes available by special order
- Available in 1010 Carbon Steel and 316L Stainless Steel
- Carbon Steel washers are case hardened and coated with RoHS‑compliant Delta Protekt®
- Provided in preassembled glued pairs
- Easy to install with standard tools
- No retightening needed once installed
- Vibration proof according to MIL‑STD‑1312‑7
Disc‑Lock Wheel Nuts
- Patented heavy duty, self-locking design
- Can be used with bolts up to Class 8.8, Grade 5
- One-piece assembly
- No washer required
- Coated in RoHS-compliant GEOMET® 321, providing protection of 720 hours in salt spray testing
- Easy to install with standard tools
- Easy to remove and REUSABLE
- No retightening needed once installed
- Vibration proof according to MIL-STD-1312-7
Disc‑Lock Heavy Hex Nuts
- Patented heavy duty, self-locking design
- Can be used with bolts up to Class 10.9, Grade 8
- One-piece assembly
- No washer required
- 2-piece nut coated in RoHS-compliant Phosphate & Oil
- Easy to install with standard tools
- Easy to remove and REUSABLE
- No retightening needed once installed
- Vibration proof according to MIL-STD-1312-7
TEC Series Washers
- Heavy duty, self-locking design
- For use with bolts up to Class 10.9, Grade 8
- Available in sizes from #5 (M3) to 5-1/8" (M130)
- Available in SCM435 Alloy Steel, 316L Stainless Steel, and 254 SMO Stainless Steel
- Provided in preassembled glued pairs
- Easy to install with standard tools
- No retightening needed after installation
- Cost-effective for use in REUSABLE applications
- Vibration proof according to MIL-STD-1312-7
How Wedge Locking Washers Work
Disc-Lock and TEC Series Wedge Locking Washers consist of two washer-shaped pieces with seizing ridges on one side and cams on the other. The cam sides are mated together with a mild adhesive and then installed between the nut or bolt and the joint material to secure using tension, not friction like traditional washers.
α > β
α = angle of mating cams
β = angle of the pitch on threads
α = angle of mating cams
β = angle of the pitch on threads
- When exposed to load or vibration, the bolt or nut will attempt to loosen
- Radial teeth seat to the base material, so movement in loosening direction is forced between cams
- Cam angle is greater than thread pitch, so a wedge effect is created by cams, preventing bolt or nut from rotating loose
Wedge locking washers are NOT recommended for mating surfaces that are not locked in place, are harder than the washers, in soft base material, or in non-preloaded joints.
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