Phenolic one-slot cap for medium-size sockets, 1/4 IP bottom (40278)

Features:

• Replacement phenolic socket cap
• One-slot cap designed for pull-chain or turn-knob socket interiors
• The bottom is tapped 1/4 IP, which measures 1/2" diameter

Phenolic one-slot cap for medium-size phenolic sockets, 1/4IP metal threaded bottom, no set screw.