Product Review
GREY TWIST-ON Wire Connector P1 Type is the Industry Standard for Electrical Wiring
Color Coded Screw on wire Connectors for Quick Assembly, UL and CSA Listed 300V
  Packaged bag of 100 pcs.
  Wire combinations: No. 22 thru 14 AWG
PRODUCT FEATURES:
  Fixed Precise Conical Wire Spring, No Pre-Twisting of Conductors is Required - Spring Creates its Own Thread
  Reusable Screw on Wire Connector Threads On or Off splice for fast and easy circuit changes and additions
  Ribbed-Cap Provides a more Secure Grip and faster fingertip starts even when hands become slippery
  Deep Skirt Wire Entry Provides Protection from Flash-Over and Shorts
  Threaded Funnel Entry Guides Wire Into Connector Cleanly without Strand Splaying
  Temperature Rated at 221°F (105°C) maximum
  Tough, UL 94V-2 Flame Retardant Shell will not crack or break, even when applied to maximum wire combinations under extreme pressure
VOLTAGE RATING: 300V Max.
  UL and CSA Listed, CQC Certified
  Listed as a Pressure-Type Wire Connector on the following SOLID and/or STRANDED COPPER TO COPPER CONDUCTOR wire combinations:
  Overall Dimensions: 0.598'' H x 0.339'' D
INSTALLATION INSTRUCTIONS:
 1. Turn off power before installing or removing connectors.
 2. Strip solid wire 1/4'' (6mm). Strip stranded wire 5/16'' (8mm).
 3. Pre-twisting unnecessary. Hold stripped wires together with ends even. Lead stranded wires slightly.
 4. Align any frayed strands or conductors.
 5. Push wires into connector and screw on until two twists are visible in wires.
HIGH QUALITY - 100% Satisfaction Guaranteed