OZ-Gedney Type SLG Sealing Locknut, Material of Construction: Steel, Finish: Zinc Plated, 13/32 IN Height, 5-1/4 IN Width, Size: 4 IN, 8 Threads Per Inch, Third Party Certification: UL File Number E-11853, CSA AP57250, Applicable Third Party Standards: UL 514B, CSA C22.2 No.18, Federal Specification W-F-408E, NEMA : FB-1, For Rigid Conduit And IMC