Snap Link, or Caribiner, 3/8" OD X 4" (Large)
This large size snap link is 3/8" in diameter, 4" in length. Also known as a spring link. Electro-polished steel.
This snap link is much beefier than our medium 3/8" snap link, rated at 450 lbs. Too big for fastening the breakaway system cable. We would use it for fastening safety chains to trailers on any small trailer or a 2 or 3 horse trailer.
Wikipedia: A carabiner is a metal loop with a spring-loaded gate used to quickly and reversibly connect components, most notably in safety-critical systems.
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