Made from Grade 8 steel, these screws can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. They are at least 25% stronger than medium-strength steel screws.

Use these general purpose 18-8 stainless steel screws for a variety of fastening applications. They have good chemical resistance.

Made from alloy steel, these inch size set screws have a thin edge that digs into hard surfaces for a secure hold.

These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion.

Tighten these nuts by turning them to the left; once fastened, they resist loosening from counterclockwise motion.

These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion.

These nuts have good chemical resistance and may be mildly magnetic.

These nuts have excellent chemical resistance and can be used in saltwater environments.

Fiberglass nuts are stronger than nylon 6/6 nuts. They resist acids, solvents, salt water, and oil.

These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion.

Made of 316 stainless steel for excellent corrosion resistance—including in salt water—these nuts tighten to the left and won’t loosen from counterclockwise motion. For use in low-clearance areas, they’re half the height of standard hex nuts.

These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion. They’re Grade 2 steel, so they can be used for fastening panels and other light duty fastening applications

These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion. They’re Grade 5 steel, so you can used these inch-sized nuts for most fastening applications.

These nuts are corrosion resistant in wet environments, electrically conductive, and nonmagnetic.

More corrosion resistant than 18-8 stainless steel locknuts, these locknuts have excellent resistance to chemicals and salt water.

Includes inch thread sizes. These Grade 8 steel locknuts are 25% stronger than our medium-strength steel nylon-insert locknuts.

These locknuts are about half the height of standard nylon-insert locknuts. Use them in light duty low clearance applications or jam one against a hex nut to hold it in place.

Grade 5 locknuts are suitable for fastening most machinery and equipment when used in conjunction with a standard hex nut.

Comparable in strength to Grade 8 bolts, these locknuts are about 25% stronger than medium-strength steel locknuts.

Also known as castle nuts, secure these nuts by inserting a cotter pin or safety wire through the slots and a drilled hole in your bolt for mild loosening resistance.

Threads at the top of these locknuts expand to grip the bolt on all sides for a stronger hold than distorted thread locknuts.

When installed, the steel insert grips the threads and lifts away from the nut body, isolating the insert from the nut's load to resist spinoff caused by vibration.

These locknuts include a two-piece clamp that expands to grip the bolt on all sides and a concave jam nut that clamps the threads onto the bolt for added vibration resistance. They're also known as drake-style nuts.

Made from Grade 8 steel, these nuts are about 25% stronger than medium-strength steel flange nuts.

The nut head rotates while the flange remains stationary to prevent scratching the material surface as you tighten the nut.

About half the strength of medium-strength steel coupling nuts, these nuts are for light duty fastening applications.

Brass coupling nuts are corrosion resistant in wet environments and electrically conductive.

These cap nuts have excellent resistance to chemicals and salt water.

Stronger than stainless steel, these nuts are comparable in strength to Grade 9 bolts.

Use these tube-end weld nuts with left-hand threaded fasteners.

Tighten these threaded rods by turning them to the left; once fastened, they resist loosening from counterclockwise motion.

These are Grade 8 threaded rods.

A distorted thread grips the screw to resist loosening.

Made of 18-8 stainless steel, these inserts have good corrosion resistance.

These inserts are made to stringent military specifications.

These inserts come with an installation tool. Drive the keys into the surrounding material for a more secure hold than thread-locking inserts.

A black-phosphate finish provides mild corrosion resistance.

Also known as CGA nuts, these are designed for low-pressure welding applications downstream of your pressure regulator. Attach them to barbed hose fittings for compressed gas to make a threaded connection to torches or pressure regulators.