Double D Lockit™ Strain Relief Bushings
For Round Wires–Round or Double D Holes

Installs with fingertip pressure into an easily punched standard Double D strain relief hole. (No clumsy hand tools required!)
Automated application equipment speeds assembly and lowers costs while greatly reducing the risk of Carpal Tunnel Syndrome.
Can be preassembled onto wire since chassis insertion isn’t required to keep it LOCKED.
5 Chassis locking steps snug lockit strain relief into range of chassis thicknesses up to .157˝.
Recognized under UL File #E-15331 (far exceeds UL’s 35# pull out test).
94V-2 Flamability Rating
Black, White, and Custom colors available.
Consult Heyco for assembly equipment and other sizes.
US Patent No 4,913,385