McMaster 20715A44 Economy Dial Plunger Style Variance Indicator with Rigid Arm Magnetic Base Holder 3X642 SENSOR PROOFER450O(CONN SENSOR PROOFER450O(CONN Copper Cable Type Bolted Lugs & Terminals Certification CSA Approved No Physical Attribute Screw Type Allen Installation Torque Recommended in lb 275 LBS in Plating Type Tin plated Certification UL Listed Direct Burial No Hex Key 44989 Physical Attribute Number of Holes 1 UL Listed Yes Application For Aluminum And Copper Conductors Standards Industry Standards Met UL468A 468B Item Type 3A Plated Y Rating Minimum Voltage 600 Industry Standard(s) UL468A 468B Temperature Rating 194 Material Hardware Aluminum Conductor Type AL C Str SizeCU C Str SizeCU C Solid Size