Square nut manufactured for outside-plant/aerial use. Listed by MacLean (MacLean Network Solutions / MacLean Senior Industries) as part number SI-5365 (5/8" nominal bolt size). Constructed of high-quality steel and finished with hot-dip galvanizing. Manufactured to ANSI B18.2.2 and tapped to Unified National Coarse Threads Series Class 2B after galvanizing. Regular square nut design provides a large wrenching surface and is used with many threaded bolts and insulator pins; conforms to Bellcore specification 6645. Manufacturer lists pack and carton quantities (standard pack 250, carton weight 26 lbs.). Distributor listings add cross-reference/SKU and mechanical attributes such as ultimate tensile strength.