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History Applications Product Features Certifications and Compliances Types of Myers Hubs Additional Hubs Available Marketing Materials Pre-1949 Welding was standard to bond coupling to enclosure, to maintain a watertight connection and ground for conduit entering enclosure. 1949 Myers Hubs established. Invented the Scru-Tite? Hub. Watertight / Dust Tight Joint. Positive Electrical Ground. UL / CSA Approved. Eliminated need for welding. 1997 Myers acquired by Cooper Crouse-Hinds. Used in wash down, harsh industrial, outdoors, hazardous, corrosive / chemical atmospheres, for grounding, indoor rigid conduit, OEM, and overseas applications (metric adapters). In conjunction with enclosures / wireways fabricated from sheet steel, stainless steel, cast, and non-metallic materials. Industries such as refineries, paper mills, food processing, breweries, waste water treatment facilities, chemical plants, pharmaceutical plants, steel mills, and marine applications. Vibration Proof Strong, oversize nut with radial serrations assures flush installation and positive grounding. Optional Grounding Screw For Added Safety Captive “O-Ring” Gasket Impervious to corrosive moisture and petroleum products. Buna-N gasket assures positive water and dust-tight installations. Precision Machine Cut NPT Threads Positive fit and simple installation. No Welding Unique serrations on both nut and hub bite into metal assuring a positive electrical ground. (UL approved for use with service entrance conduit.) Posi-Lok Insulated Throat Cannot come out. Made from flame retardant Lexan?. Standard in sizes from 1/2” through 4” UL Listed CSA Certified Class I, Division 2 NEC 501-4(b) Class II, Division 1 2 NEC 502-4(a)(b) Class III, Division 1 2 NEC 503-3(a)(b) For use with NEMA Enclosures 2, 3, 3R, 4, 4X, and 12. (Check hub type for individual compliances) Optional IEC / CENELEC Hubs for: Zone 1, Ex e II Zone 1, Eex e II Zone 1, Aex e II Available in zinc or aluminum. Sizes range f