Hex Nuts, Lock Nuts, Flange Nuts & Specialty Nuts
Nuts in Yongnian are produced by specialist factories running dedicated cold-forging and tapping lines. HDBolt sources matching nuts for every bolt category, plus the full range of specialty nuts — locking, structural, decorative, and embedded.
Sub-categories
Hex Nut
The standard hex nut to DIN 934 or ISO 4032 is the most-produced fastener in the Yongnian cluster. Property class 8 nuts...
Hex Thin Nut / Jam Nut
A hex thin nut, often called a jam nut, is approximately half the height of a standard hex nut. Two thin nuts can be use...
Heavy Hex Nut
Heavy hex nuts have thicker bodies and larger across-flats than standard hex nuts of the same nominal size. ASTM A194 Gr...
Hex Flange Nut
A hex flange nut has an integrated washer-like flange under the body, eliminating the need for a separate flat washer. T...
Nylon Insert Lock Nut
Nylon insert lock nuts have a polyamide ring at one end. As the nut is threaded onto the bolt, the bolt deforms the nylo...
All Metal Lock Nut
All-metal lock nuts use a deformed top section (DIN 980V) or a spring-tooth locking element to generate prevailing torqu...
Castle Nut
Castle nuts (also called slotted nuts) have radial slots cut across the top of the nut. After tightening, a cotter (spli...
Wing Nut
Wing nuts have two wing-shaped projections that allow tightening by hand without tools. Common in temporary connections,...
Cap Nut / Acorn Nut
Cap nuts (also called acorn nuts or dome nuts) have a closed, domed top that conceals the bolt thread end. They serve bo...
Coupling Nut / Long Nut
A coupling nut (or long nut) is a long hex nut typically 3 × diameter in length, used to join two pieces of threaded rod...
Square Nut
Square nuts have four sides instead of six, providing more wrenching grip than a hex nut and dropping cleanly into a squ...
T-Nut
T-nuts have a flange with sharp prongs (or barbs) that anchor into wood when hammered in. Once installed, they provide a...
Weld Nut
Weld nuts are designed to be welded (typically by resistance projection welding) onto sheet metal, providing a permanent...
Cage Nut
A cage nut is a square nut held in a spring-steel cage that clips into a square hole in a sheet metal panel. Common in 1...
Rivet Nut / Insert Nut
Rivet nuts are blind-installed threaded inserts that create a strong threaded mount point in thin or single-side-access ...