A ring is the standard style of tongue. The safest and most reliable; it cannot be removed unless mounting screw is removed. Specifications Agency Approvals | UL and CSA | Barrel Length | 0.25 Inch | Barrel Style | Butted | Brand | Scotchlok | Clearance (C) | 0.22 Inch | Conductor Sizes | 16 - 14 AWG | CSA File Number | LR22190 | Dimension E | 0.58 Inch | EU RoHS Compliant | Yes | Insulation Material | Non-Insulated | Length | 0.74 Inch | Packaging | 1000 per bulk box | Stud Size | 8 | Terminal Style | Standard | Terminal Type | Ring | Thickness | 0.03 Inch | Trademark | Scotchlok | UL File Number | E23438 | Width | 0.25 Inch | |