metal clasp

Most listings simply say 'metal.' A number specify stainless steel or brass, and one fastening strap set pairs 100% nylon webbing with metal buckles.

Closures include pull-to-open or squeeze-to-close binder rings, spring-gate carabiner/spring-snap clips, metal square buckles for strap wraps, and lobster-claw clasps for necklaces.

Many listings highlight easy operation and portability — e.g., spring-gate carabiners that open one-handed, pull-to-open binder rings, and compact, lightweight clips suited for travel or backpacks.

Some adjustable nylon straps with metal buckles specify holding capacity — for example, up to 50 lbs. Separately, several product listings give the item's own weight (examples: net weight 43 g / 1.5 oz; Weight: 0.02 lb).

Some listings explicitly note corrosion resistance: several carabiner clips are marked as 304 stainless steel, an automotive fastener kit cites zinc surface-plating and calls the parts 'rust and corrosion resistant,' and some binder-ring descriptions state they 'prevent rusting.'