LED Intelligent Keyhole Light Lamp Door Lock Sensor Lamp - Battery Operated Auto Sensor Motion Detector with 4 LED for Key Hole/Door Lock (Gold) - Amazon.com
100 COMMERCIAL GRADE INCANDESCENT CLEAR MINI LIGHTS WITH LAMP LOCK - CASE SALE
Lamp Pipe Locknut,Lamp Rod Couplings,Brass Lock Nut Fasteners for Standard 1/8 IP threaded Pipe,Perfect for Lamp Assemlby or Repair,Lamp tube threaded Locknuts - Amazon.com
Commercial Electric Assorted Finish Lamp Lock-Up Cap Nut Kit - Amazon.com
LH0955 Converts an E14 euro-candelabra base lamp holder/socket to a GU10 twist lock lamp holder/socket
Commercial Electric Assorted Finish Lamp Lock-Up Cap Nut Kit 804874 - The Home Depot
50 Watt LED Yard/Roadway Light with Nema Twist-Lock Photocell
Halogen Twist Lock Bulb - Fire Line Equipment
Leviton 660W Medium Base T-8/T-12 Bi-Pin Turn Type Snap-In/Slide-On Lamp- Lock Linear Fluorescent Lampholder, White 23653-WP - The Home Depot
T8 Bi-Pin Lamp Holder (Twist Lock) – Omni-Ray Lighting, Inc.
64 Piece Lamp Repair Hardware Assortment Pack, Includes 12 Inch All Thread Lamp Pipe, 2 Coupling Pipe Connectors, 12 Nipples, 24 Washers, 24 Lock Nuts - Wholesale Craft Outlet