912S-8X = Swivel Trigger Clasp Sterling Silver

Sterling Silver Swivel Trigger Clasps
These trigger style silver clasps feature a bulit-in ring for attaching a chain. The ring can swivel 360deg so that the clasp can stay straight if the chain moves.

Sold individually.

Several sizes available:
912S-81 = 5.5 x 11.8mm
912S-82 = 6.3 x 13.5mm
912S-84 = 9.5 x 19mm

Remember that trigger clasps have an internal steel spring. That spring can be damaged by the heat of soldering or by being immersed in acidic pickle solution.