fastener, fastening, holdfast, fixing

restraint that attaches to something or holds something in place

• bellyband — a strap around the belly of a draft animal holding the shafts of a wagon
• buckle — fastener that fastens together two ends of a belt or strap; often has loose prong
• button — a round fastener sewn to shirts and coats etc to fit through buttonholes
• carabiner, karabiner, snap ring — an oblong metal ring with a spring clip; used in mountaineering to attach a rope to a piton or to connect two ropes
• catch — a fastener that fastens or locks a door or window
• clasp — a fastener (as a buckle or hook) that is used to hold two things together
• cleat — a fastener (usually with two projecting horns) around which a rope can be secured
• clip — any of various small fasteners used to hold loose articles together
• clothespin, clothes pin, clothes peg — wood or plastic fastener; for holding clothes on a clothesline
• corrugated fastener, wiggle nail — a small strip of corrugated steel with sharp points on one side; hammered across wood joints in rough carpentry
• cotter, cottar — fastener consisting of a wedge or pin inserted through a slot to hold two other pieces together
• cringle, eyelet, loop, grommet, grummet — fastener consisting of a metal ring for lining a small hole to permit the attachment of cords or lines
• dowel, dowel pin, joggle — a fastener that is inserted into holes in two adjacent pieces and holds them together
• fillet, stopping — fastener consisting of a narrow strip of welded metal used to join steel members
• hook and eye — a kind of fastener used on clothing
• knot — any of various fastenings formed by looping and tying a rope (or cord) upon itself or to another rope or to another object
• lashing — rope that is used for fastening something to something else
• link, linkup, tie, tie-in — a fastener that serves to join or link
• lock — a fastener fitted to a door or drawer to keep it firmly closed
• locker — a fastener that locks or closes
• nail — a thin pointed piece of metal that is hammered into materials as a fastener
• nut and bolt — a fastener made by screwing a nut onto a threaded bolt
• paper fastener — a fastener for holding a sheet of paper in place
• pin — a small slender (often pointed) piece of wood or metal used to support or fasten or attach things
• screw — a fastener with a tapered threaded shank and a slotted head
• seal — fastener that provides a tight and perfect closure
• sealing wax, seal — fastener consisting of a resinous composition that is plastic when warm; used for sealing documents and parcels and letters
• slide fastener, zip, zipper, zip-fastener — a fastener for locking together two toothed edges by means of a sliding tab
• snap fastener, press stud — a fastener used on clothing

• restraint, constraint — a device that stops something from moving