McMaster 94895A036 SAE Grade 8 High Strength Steel Hex Nut, Pack of 20, Zinc Yellow Chromate Plated, 3 4" 10 Thread G9396694 Voltage 600 V AC HP Voltage 600 V AC HP @ 115VDC 2 hp HP @ 1 Phase 120V 2 hp HP @ 3 Phase 240V 7 1 2 hp Pilot Light No Description Special Features Hazardous Location Standards Class I ) 1 Material Alloy Steel Graduations (ft Hex Nut Profile Standard Material Zinc Yellow Chromate Plated Steel Thread Size 3 4" 10 Width 1 1 8" Height 41 64" Fastener Strength Grade Class SAE Grade 8 Drive Style External Hex Nut Type Hex Thread Spacing Coarse Thread Type UNC Pack Size 20 per pack Country of Origin Canada Schedule B Number 731816 SAE Grade 8 high strength steel hex nut with zinc yellow chromate plating for corrosion resistance in wet and outdoor environments