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Hex nuts are metal fasteners having six sides. They can be used with bolts, washers, anchors, studs, threaded rods & screws. They are designed to fasten two or more wood / metal parts or create bolted joints to prevent movement. Raptor Supplies offers these hex nuts from brands like Grainger, Woodhead, Vulcan Hart, Banjo, Apollo, Fabory, Texas Pneumatic Tools, C Sherman Johnson, Disco, Dynaform & more.
They are spaced extremely close for incremental and precise adjustments on optical fixtures, measuring devices and lab equipment.
They are spaced closer together than coarse threads, making them less prone to loosening during vibration. They cover a short distance with each turn for precise adjustments.
They are the widest spaced threads. They start easily and need only a few turns to tighten. These thick & deep units are less prone to jamming or stripping, even if rusty / dirty / nicked.
They are even more closely spaced than fine threads. Covering a short distance with each turn, they permit incremental and precise adjustments.
They prevent metric bolt threads from loosening due to temperature swings, vibration and wear. These units are stronger than medium-strength steel locknuts.
These nuts have irregularly shaped threads at the top of the nut to hold the bolt tightly. They are available in centre lock and top lock types.
They have serrations to hold the surface rather than the threads for mild vibration resistance & ease of installation. These nuts are also available in a flanged design.
They are also known as K-lock nuts or Keps. These units come with a free-spinning tooth lock washer that grabs the surface rather than the threads for mild vibration resistance & ease of installation. They are also available in spring lock types.
The threads on the top of these lock nuts expand to clutch the bolt on all sides for a stronger grip than distorted lock nuts.
Secure these hex slotted nuts by inserting a safety wire or cotter pin through a drilled hole and the slots present in the bolt to resist mild loosening. However, they are not recommended for use on parts that are exposed to high vibration as they can shear under prolonged stress.
The steel insert isolates itself from the nut's load after installation, grabbing the threads and lifting away from the nut body to prevent spinoff due to vibrations. They are frequently used in shakers and vibrating machinery.
They are also known as fuji lock nuts. They come with a spring ring to create tension when tightened, securing them in place. They can be easily installed or removed.
They form threads when tightened to resist vibration. These nylon flange locknuts eliminate the need for a separate washer as they distribute pressure where the nut contacts the surface of the material.
They expand to clutch medium-strength steel bolts on all sides to prevent the damage of threads. These drake-style nuts also comprise a concave jam nut to clamp the thread onto the bolt for extra vibration resistance.
They provide a medium fit during mating using internal threads.
They are used for applications where tolerance limits are close.
They are engineered with clearance on all diameters for free movement. These threads are designed for assemblies where the external thread moves perpendicular to the axis and the internal threads are rigidly fixed.
They are used for internal threads. '6' denotes the tolerance grade used for medium-tolerance quality and 'G' denotes the tolerance position with a positive fundamental deviation (meaning the thread element will be larger than the basic size).
They are used for internal threads. '6' indicates the medium tolerance grade and 'H' denotes the tolerance position with zero fundamental deviation (distance of the tolerance position from the basic size of the unit).
They are coarser than 6H internal threads.
These nuts are stronger than nylon and non-conductive in nature. They are lightweight and can resist acids, saltwater, solvents & oil.
These nuts are resistant to melting or seizing, even at temperatures up to 3000 degrees Fahrenheit. They offer extreme hardness and exceptional electrical insulation.
These nuts are lightweight and cheaper to use than any other nuts. They resist grease, oil and solvents.
Hex nuts made from various grades of steel provide impeccable strength & durability. They tighten when turned to the left to prevent loosening from counterclockwise motion.
They ensure chemical resistance in harsh environments and can be mildly magnetic. SS nuts offer moderate structural rigidity and are available in 18-8, 316, A2 and A4 types.
These nuts are lighter than steel nuts (one-third the weight). They resist corrosion in wet environments and are non-magnetic in nature.
These nuts are non-magnetic and resist salt water & acids. They ensure high strength-to-weight ratio.
They are electrically conductive and non-magnetic. They resist rusting and corrosion from water.
They provide better conductivity than most steel variants. They offer metal fatigue, saltwater & corrosion resistance, along with non-magnetic and sustainable properties.
These nuts are used in pumps, valves & shafts, and can withstand caustic chemicals & salt water. They are mildly magnetic.
Mild-to-high corrosion resistance in wet environments.
Superior protection against corrosion, dents & scratches, while repelling dust & water.
Increased surface hardness, abrasion resistance & easy cleaning.
Light-to-medium corrosion resistance and minimal light reflection.
Hot dip galvanised coating provides better corrosion resistance than zinc plating, owing to the thick coating. Gold galvanised finish offers long life & reliability. Electro galvanised plating provides a vibrant and shiny appearance.
These Unified National threads mate with UN or UNR threads and offer extra thread sizes when UNF, UNC & UNEF do not work for a specific application or design (especially for large sizes). They are also referred to as constant-pitch threads as the number of threads per inch remains the same, even if the diameter changes.
These Unified National Coarse threads have coarse spacing to allow tightening with few turns. They mate with UNC & UNRC threads and are thick, deep & less likely to jam or strip even if dirty / rusty / nicked.
These Unified National Extra Fine threads have extra-fine spacing that requires travelling a very short distance with each turn, allowing incremental & precise adjustments. They mate with UNEF and UNREF threads on thin-walled tubes, thin nuts and other small components.
They are also known as metric Acme threads. They combine the benefits of Acme & metric threads for vertical applications with heavy loads. They only mate with other metric trapezoidal threads.
These National Pipe Straight Mechanical threads have a straight profile so that they can be used without the fear of weaning out. They are used with mechanical & sealed connections in conduit, hose & tube fittings to prevent leaks.
They are ideal for clamping & vertical applications with heavy loads like tightening a vice, moving big objects and elevating a work table, owing to their broad & flat threads. They mate with other Acme threads only.
They are measured in millimetres and are specified by their pitch & diameter. These threads can only mate with other metric threads and their thread spacing can be ultra-fine, extra-fine, fine or coarse.
These Unified National Fine threads have fine spacing that makes them less prone to loosening when vibrating. They cover a short distance with each turn and mate with UNRF & UNF threads.
These Unified National Special threads can be ultra-fine, extra-fine, fine or coarse. They mate with other UNS threads.
They feature internal threads and are ideal for fastening most equipment & machinery.
They are about 10% taller and wider than standard hex nuts. These heavy hex nuts distribute loads over a large area and are stronger than high-strength steel nuts.
They are about half the height of standard hex nuts and can fit in low-height clearances. These nuts jam against each other to hold them in place or are threaded together to form a locknut.
These small-pattern hex nuts are about 20% narrower than standard hex nuts. They are ideal for tight spaces where standard hex nuts do not fit.
They are about 50% taller than standard hex nuts. These nuts offer maximum gripping area for installation using a wrench.
They are also known as heavy jam nuts. They are about half the height & 10% wider than standard hex nuts. They jam against each other to fasten bolts and hold them in place in heavy machinery & earth-moving equipment.
The threads slope up & to the right. This thread orientation moves away from the user when turned clockwise.
They are known as reverse threads and slope up & to the left. This thread orientation moves toward the user when turned clockwise. They are ideal for securing counter-clockwise spinning parts.
Hexagonal-shaped nuts are easier to turn than other types of fasteners as they have six parallels and require less turning distance / radius. They only need one-sixth or 30 degrees of turning each time to reach the next flat parallel.
If you are mating NPSM threads with NPTF or NPT threads, make use of sealant or pipe tape to assure liquid and air-tight sealing.
The tool needed to tighten a fastener depends on its drive type. Deeper grooves and more points of contact on internal drive designs provide a sturdy grip and need less power to tighten. On the other hand, even lesser force is required to tighten external drive types as they may be secured using a wrench or socket.