Woot offers 3M Performance Plus R/Y+ Flame-Retardant Twist-On Wire Connector, Rounded Wing Shell, Live-Action/Square Wire Spring for $59.22 (orig. $84.58). Free shipping for Prime Members.

Product Description:
3M Twist-On Wire Connector, Flame-Retardant, Series: Performance Plus R/Y+, Rounded Wing Shell, Live-Action/Square Wire Spring, Aluminum/Copper Wire, 22 - 8 AWG Wire, 600 V, 221 deg F, Steel Spring, Red/Yellow

• Sale Unit: CAN (CONNECTOR x 500) (CONNECTOR x 500)
• Brand: 3M
• 3M Number: R/Y+JUG
• Connector Type: Wire Connector
• Color: Red / Yellow