Twice as strong as low-strength steel screws, these screws are suitable for fastening most machinery and equipment.

Choose these screws for their adherence to strict military standards for material and construction. Use them to fasten most machinery and equipment.

These screws are made to Japanese Industrial Standards. They are suitable for fastening most machinery and equipment.

Choose these metric screws for high-strength fastening. Often used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems, these screws are at least 25% stronger than medium-strength steel screws.

When clearance for a wrench is limited, these screws have a Phillips drive so you can install them with a screwdriver. They are used for high-strength fastening.

About half as strong as medium-strength steel screws, these screws can be used for light duty fastening applications, such as securing access panels.

Choose these metric screws for heavy duty stamping applications as well as earth-moving machinery such as bulldozers and excavators. These screws are 10% stronger than our high-strength metric steel screws.

Choose these screws for their adherence to strict military standards for material and construction. Screws are 18-8 stainless steel for good chemical resistance.

Choose these screws for their excellent corrosion resistance—comparable to 316 stainless steel—and the strength of steel. Use them for high-strength fastening in chemical and marine applications.

Use these kits to connect standard-size stainless steel pipe flanges for ANSI Class 150 or 300.

Brass screws are electrically conductive, nonmagnetic, and have good corrosion resistance.

Bronze screws are 30% stronger than brass screws and provide more corrosion resistance to salt water, gases, and sewage. They are nonmagnetic and electrically conductive.

Fiberglass screws are stronger than plastic screws, chemical and oil resistant, nonconductive, and lightweight.

Ceramic screws won't melt, rust, seize, or become brittle—even at extreme temperatures. They are nonconductive and highly resistant to corrosive gases.

Designed for construction and exterior building applications, these metric screws are often used to join I-beams and scaffolding. Their partial threading leaves an unthreaded portion that is strong enough to stand up to the sideways forces of joints.

These Grade B8 screws are made from 18-8 stainless steel and have good chemical resistance. Also known as pressure bolts, they meet the high-pressure and high-temperature regulations of ASTM A193 and are used to secure pressure tanks, valves, and flanges.

These Grade B7 steel screws are nearly twice as strong as our stainless steel screws for high-pressure applications. Also known as pressure bolts, they meet the high-pressure, high-temperature regulations of ASTM A193 and are used to secure pressure tanks, valves, and flanges.

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. The flange distributes pressure over the surface, eliminating the need for a washer.

Made from Grade 5 steel, these screws are suitable for fastening most machinery and equipment. The flange distributes pressure where the screw meets the surface, eliminating the need for a washer.

Comparable in strength to Grade 9 screws, these are about 20% stronger than high-strength steel screws and often used in heavy duty applications, such as stamping and earth-moving equipment. The flange eliminates the need for a washer.

Made from 18-8 stainless steel, these screws have good chemical resistance. A flange under the head distributes pressure over the surface, eliminating the need for a washer.

These screws are chemical and oil resistant, nonconductive, and lightweight. The flange eliminates the need for a washer, distributing pressure where the screw meets the surface.

These metric screws are suitable for fastening most machinery and equipment. They have a serrated flange that helps prevent loosening from vibration.

About 20% stronger than medium-strength steel screws, these Grade 8 steel screws can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. Serrations under the flange provide mild vibration resistance.

More corrosion resistant than 18-8 stainless steel screws, these 316 stainless steel screws have excellent resistance to chemicals and salt water. A serrated flange provides mild vibration resistance.

These Grade 5 steel screws are over 70% stronger than our stainless steel wire-lockable hex head screws. Wire these screws together through the hole in the head to get more vibration resistance than any other screw.

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 more than twice as strong as our stainless steel thread-locking screws. The thread locker helps resist loosening from vibration.

Made from 18-8 stainless steel, these screws have good chemical resistance. They have a thread locker to prevent loosening from vibration.

Also known as Sems screws, these screws have a permanently attached but freely rotating tooth lock washer that bites into the mating surface for vibration resistance.

Bolt down equipment in food processing or sanitary areas while sealing out contaminants.

Drilled through the head and shaft, these screws vent fluid and gases trapped below the screw, making them good for vacuum applications.

18-8 stainless steel screws have good chemical resistance.

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

These steel screws are zinc plated to resist corrosion in wet environments.

These steel screws are zinc plated to resist corrosion in wet environments.

Serrations under the head act as a brake to prevent over-tightening and damaging threads.

These screws have a hex head for a secure grip with a wrench.

These 18-8 stainless steel screws have a hardened steel drill point to penetrate steel and are coated to increase corrosion resistance.

These screws have the strength of 410 stainless steel with added corrosion resistance.

These steel screws are available with corrosion resistant finishes. A rubber-bonded washer compresses to form a watertight seal. They save you time and effort by drilling their own holes and fastening in a single operation.

Made from 410 stainless steel, these screws are strong, wear resistant, and mildly chemical resistant.

Made from 18-8 stainless steel, these screws have good chemical resistance.

Serrations under the head act as a brake to prevent overtightening and damaging threads.

Made from 410 stainless steel, these screws are strong, wear resistant, and mildly chemical resistant.

These screws have a hex head for a secure grip with a wrench.

Also known as Tap-Flex screws, these are made from hardened steel to penetrate hard material. They have a five-edged shank that presses tightly against the material to form threads and resist loosening.

18-8 stainless steel screws have good chemical resistance.

Drive the pointed tip of these screws into soft material, such as wood and drywall. They are also known as lag bolts.

These 316 stainless steel screws have excellent resistance to chemicals and salt water.

These 410 stainless steel screws are more corrosion resistant than ultra-corrosion-resistant coated steel screws.

Press threads into plastic to create a strong hold. Use a wrench, hex socket bit, or nutdriver to securely grip the hex head and tighten these screws.

A freely rotating washer distributes pressure over a wider area than a flange, preventing damage to your material's surface.

Tighten these thumb screws by hand or with a hex key for more torque.

Also known as wheel and axle bolts, these metric screws have an unthreaded shoulder that acts as a shaft, so material attached to the threaded end can rotate.