Ideal 30 643J Twist On Wire Connectors, Wing, Blue Orange, 14 10 AWG, 600 V, 500 PK 381541 Class II Div 2 Class II Div 2 Heat Rating Not Rated Mark II Slip Test Results Dairy Tile Oily Wet Not Tested Removable Insole Yes Chain Saw Cut Resistant No Footwear Sole Pattern Exclusive Design For Outdoor Traction No Footwear Style Hiker Boot Insulation Type None ASTM Footwear Class F2413 18 I C EH Manufacturers Suggested Sole Slip Rating Best Insulation Weight None Liner Material Gore Tex(R) Footwear Shank Type Nylon Satra Slip Test Results Dairy Tile Oily Wet Not Tested Electrical Hazard Rated Yes Satra Slip Test Results Dairy Tile Wet 0 05 in Width 0 They fit various conductor sizes and combinations and are commonly used to consolidate multiple sizes of twist on connectors into a single standard size