Twist-on Electrical Wire Caps with Wings (100 Pack)

These twist-on wire caps ensure a secure, reliable connection for all standard electrical and low-voltage applications. Engineered with a durable steel core and a UL94V-2 flame-retardant thermoplastic shell, they feature an internal spring design that grips wires tightly for a superior, long-lasting hold. Also features two wings for easier twist-on wire termination. Active Spring-Action Grip An internal steel spring design actively bites into stripped wires as you twist, ensuring a highly secure connection that won't loosen under mechanical vibration or thermal expansion. High-Heat & Flame Resistance Encased in a rugged thermoplastic cover with a UL94V-2 flame rating, safely handling operating temperatures up to 105°C (221°F). Fully Certified & Compliant Meet safety and environmental standards, carrying UL, CSA, and RoHS certifications for peace of mind on regulated job sites. Suitable wires CN-MRW-YL-100 AWG Max. 3 #12 Min. 2 #18 JIS Max. 3 #3.5 Min. 2 #0.75 CN-MRW-RD-100 AWG Max. 2 #8 Min. 4 #22 JIS Max. 2 #8 Min. 4 #0.5 CN-MRW-GY-100 AWG Max. 3 #10 Min. 3 #14 w/1 #18 JIS Max. 3 #5.5 Min. 3 #2.0 w/1 #0.75 CN-MRW-BL-100 AWG Max. 3 #8 w/1 #12 Min. 3 #12 JIS Max. 3 #8 w/1 #3.5 Min. 3 #3.5 Physical Characteristics Color Yellow Red Grey Blue Outer Diameter 18.2mm 23mm 25.5mm 31.8mm Inner Diameter 9.8mm 13mm 14.9mm 17.8mm Height 25.8mm 31.8mm 33.3mm 40mm Voltage Rating 600V max. Temperature Rating 105℃ (221℉) Material Steel with thermoplastic cover Flame Rating UL94V-2 Approvals c(UL)us Compliant CSA Compliant Environmental RoHS Compliant Packaging Information Package Quantity 100 Product Weight 0.40 lbs 0.65 lbs 1.09 lbs 1.70 lbs Spec Sheets Download spec sheet