Non-insulated ring terminal mounts to metal stud. Ring tongue style is the most secure and reliable because it can not be disconnected with out removing the screw or contact which it is connected to. Additional Information Part # 11A11050 Terminal Type Ring Orientation Standard Straight Wire Gauge 8 Insulation Type Non-Insulated Stud Size 1/4" Material Tin Plated Copper Inside Barrel Dia. 0.175" Length 1.106" Width 0.483" Stock Thickness 0.05" Max Temp 347F/175C Max Voltage 600 Standards UL Listed, CSA Certified Weight (lbs) 0.1400