Topaz 553 – 1″ Steel Grounding Locknuts – (50 Pack)

Topaz’s Grounding Locknuts are designed for use with threaded conduit when additional locking and grounding connections are necessary. Heavy gauge steel construction maintains product integrity and performance. Serrated teeth design enables better “bite” into box to prevent loosening of the connection. Always in stock and ready for fast delivery in sizes from 1/2” to 4”; UL listed.