Topaz's rigid locknuts securely affixes Rigid conduit to an electrical box or other metal enclosure. Rigid locknuts help ensure a secure and safe connection; fabricated from corrosion resistant steel with zinc plated finish. Serrated teeth help prevent loosening of the connection due to vibrations.

Specifications:

Trade Size: 3-1/2 Inch
Diameter: 4.2 Inch
Thickness: 0.19 Inch
Material: Steel
Installation: 8 TPI Threaded
Standard Package: 25 per Case