Metal Strain Relief Piece, Threaded Cord Grip - Great For Cloth Covered Wire! 1/8 IPS Male Threads Brass construction with a nylon set screw to tighten up onto your cord, holding it in place These will work with any of our 18 gauge cloth covered cords. These work best with our 18 gauge round cords & 3-wire twisted cords. These will also work with 2-wire twisted & 2-wire parallel cords, but not as well as the cone-shaped strain reliefs. These will also work with our 16 gauge 2-wire twisted cord, but will not work with our 16 gauge & 14 gauge round cords Choose between (Left to Right, first picture): Antique Brass, Polished Copper, Brass, Satin Nickel, Polished Nickel, Satin Black. Shipping is FREE if added to another item purchase This listing is for one strain relief piece, wire & sockets shown for demonstration only & are sold separately. Go the extra mile: use these handy pieces to not only give your fixture a beautiful finished look, but also add a great safety feature to your hanging pendants & other weight-bearing light fixtures. They thread into the base of any standard light socket (or use a nut to fasten them to anything, like a ceiling canopy mount) & when you tighten up the set screw, it will hold your cord firmly in place, taking the weight off of your wire connections inside your socket or ceiling canopy. No more struggling to tie knots or use cumbersome crimps inside your socket! - 1/8 IPS Male Threads (fits all of our sockets, or use a nut to fasten these to any canopy or fixture you want to hang cords from!) - Yes these are compatible with all varieties of cord we sell, including all 2-wire & 3-wire options. (The only exception is our 14 gauge cords, those are super thick & will not fit in any of our strain relief pieces). - Installation note: thread the base onto the socket or fixture, loosen the set screw completely & slide in your cord. Complete your wire connections as needed, tighten up the set screw & your cord is held in place, nice & snug! Metal Strain Relief Piece & Set Screw, Threaded Cord Grip - Great with Cloth Wire. Top Quality Supplies For Your Diy Lighting, Lamps, Pendants