144 Head Pins .029dia X 4 Inch Silver Plating Over Brass Standard 21 Gauge Wire Beadsmith Headpins. Head pins are one of the most frequently used jewelry findings around. Basically, a headpin is a piece of wire with a "head" (stopper) at one end that stops beads from sliding off. Once beads are strung onto your head pin, use jewelry pliers to make a simple loop or wrapped loop with the remaining length of wire. Head pins allow you to make your own beady charms to add to bracelets, necklaces, and earrings.