Lobster Clasp
Lobster claw clasps use tension from a spring-loaded mechanism to keep the clasp securely closed. The claw catches a jump ring, loop or piece of chain on the other end of a bracelet or necklace. Lobster claws come in sterling slilver, gold filled and base metal.
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Toggle Clasp
To fasten, simply pivot the bar so that it can slip inside the ring, then pivot the bar again to secure it. The bar is longer than the diameter of the ring to help keep the clasp secured. Toggles are available for single or multi-strand designs and are made from different metals, including sterling silver, gold filled, gold vermeil and brass.
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Handcrafted Clasp
On this site, "Handcrafted Clasp" refers to a hand made hammered sterling silver "S-Clasp". S-Clasps are similar to hook and eye clasps, except that an eye catches each side of the S-Clasp.
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Ear Wires
You will find a few different styles of ear wires mentioned on this site. Below are photos of the different styles.
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Fish/French Hook
Lever Back
Hammered

Silver Bead Shapes
You will find a few different styles of beads mentioned on this site. Below are photos of the different styles.
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Nugget Bead
Spacer
Rondell
Rope Bead

Other Bead Shapes/Terms
Briolette - Briolettes are usually an oval or pear shape with its entire surface cut in angular facets.
Coin - Flat coin shaped beads that are side drilled.
Heishi - Thin, uniform, disc shaped beads that are center drilled and are strung in a row.
Rondell - Flat bead with rounded edges and a hole in the center.
Findings - Manufactured components used to create jewelry. Findings include ump rings, clasps, bails, headpins and ear wires.