Mechanical Screw Clasp
By Todd Reed
Intermediate metals project.

I use this clasp in most of my necklaces; it is strong and also acts as an ornamental element. The basic idea is to create a spatial illusion that is actually functional. Using the silver tubes is the simplest method, but try creating different sizes and shapes of hollow forms. (It may take a little practice to get the two pieces to fit tightly together.)

This clasp can be made in a variety of ways with a variety of different materials, from rocks to hollow balls. Experiment; do what works best for you.

Editor's note: Todd Reed is profiled on page 26 in the December 1999 Lapidary Journal; see “The Softer Side of Forging.”

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1.8mm outside diameter (O.D.) sterling wire or tubing 18-gauge sterling wire 4.8mm inside diameter (I.D.) sterling tubing 8.5mm I.D. sterling tubing 1" square of 24-gauge sterling silver sheet Length of desired chain, wire, or cable Hard solder Soldering pick High-temperature flux Hot pickle Flap wheel (400-grit) and mandrel	Knife-edge abrasive wheel (gray Cratex = medium grit) Saw frame and blades Flat files Soldering torch Slide rule, caliper, and/or millimeter measuring device Drill and bit large enough for chain (I used a 3mm bit) Brass brush Liver of sulfur patina Third hand Small triangle file
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Todd Reed is a metalsmith based in Boulder, CO. He uses hand tools to forge and fabricate his jewelry, usually silver or high-karat gold combined with stones. He is a member of the Artist Blacksmiths Association of North America, the American Craft Council, the Colorado Metalsmiths Association, the Durango Arts Center, and the Society of North American Goldsmiths.