12x4mm Barrel Screw Clasp, Rhodium Plated, 1 Set - Golden Age Beads
PAGOW 150Pcs Clasps for Waist Beads, Barrel Clasps for Jewelry Making, Screw Connector Twist End Tip Caps DIY Jewelry Making Necklaces Clasp Bracelet : Amazon.co.uk: Home & Kitchen
How to Apply Barrel Clasps - Part 2 CLOSE UP - YouTube