Tighten these screws by turning them to the left; once fastened, they prevent counterclockwise-moving parts from loosening.

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

Plastic screws are chemical and oil resistant, nonconductive, and lightweight.

Our most corrosion-resistant metal screws, titanium screws withstand salt water, acids, and chemicals. They have a high strength-to-weight ratio and are about 40% lighter than steel screws.

Nearly as strong as steel, these stainless steel screws won’t rust in outdoor, washdown, and other corrosive environments. With half the height of a standard socket head, these low-profile screws fit in tight spaces.

For use where sideways forces are a concern, these screws have a precisely measured unthreaded portion (grip) for a strong hold. Their flanged head distributes pressure where the screw meets the surface, so you don't need a washer.

With a tensile strength of 170,000 psi, these alloy steel screws are among the strongest we carry. They are stronger than Grade 8 steel screws and are nearly two and a half times stronger than stainless steel thread-locking screws. They have a thread locker to prevent loosening from vibration.

With a tensile strength of 170,000 psi, these alloy steel screws are among the strongest we carry. They are stronger than Grade 8 steel screws and are more than twice as strong as stainless steel wire-lockable screws. These resist vibration better than any other socket head screw.

More corrosion resistant than 18-8 stainless steel screws, these button head screws have excellent resistance to chemicals and salt water. They may be mildly magnetic.

These pan head screws are zinc plated for corrosion resistance in wet environments.

These screws have good chemical resistance.

More corrosion resistant than 18-8 stainless steel screws, these screws have excellent resistance to chemicals and salt water. They have a flange that distributes pressure across a wide surface, eliminating the need for a separate washer. Screws may be mildly magnetic.

Made from alloy steel, these screws are nearly twice as strong as stainless steel button head screws.

These screws come with a traceable lot number and a physical and chemical test report. Use them for high-strength fastening.

Tighten these screws by turning them to the left; once fastened, they prevent counterclockwise-moving parts from loosening. For use in high-strength fastening applications.

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

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

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

Tighten these screws by turning them to the left; once fastened, they prevent counterclockwise-moving parts from loosening. Made from 18-8 stainless steel, these screws have 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.

Aluminum screws are one-third the weight of steel 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.

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 316 stainless steel, these Grade B8M screws are more corrosion resistant than 18-8 stainless steel screws and have excellent resistance to chemicals and salt water. Screws meet ASTM A193 regulations, so they can be used in high-pressure and high-temperature applications. Also known as pressure bolts.

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.

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.

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.

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

Made from 18-8 stainless steel, these screws have the best chemical and corrosion resistance of our wire-lockable screws. Wire these screws together for more vibration resistance than other types of hex head screws.

These 18-8 stainless steel screws have good chemical resistance and may be mildly magnetic.

These steel screws have a zinc plating for mild corrosion resistance.

These 18-8 stainless steel screws have good chemical resistance and may be mildly magnetic.

A zinc plating provides mild corrosion resistance.

Made from alloy steel, these screws are nearly twice as strong as stainless steel flat head screws.

With threads the same diameter as the shoulder, these inch-sized screws can handle heavy loads. They’re comparable to Grade 8 steel.

With inch-sized threads the same diameter as the shoulder, these screws can handle heavy loads. They’re 18-8 stainless steel for good chemical resistance.

A locking element on the threads adds friction to resist loosening. Comparable to Grade 8 steel, these alloy steel shoulder screws are the strongest we offer.

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

Brass set screws are corrosion resistant in wet environments, nonmagnetic, and electrically conductive.

These set screws have good chemical resistance.

Alloy steel set screws dig into hard surfaces for a secure hold.

Made from black-oxide alloy steel, these set screws resist corrosion in dry environments. They dig into hard surfaces for a secure hold and have serrations on the cup edge that grip the material surface to resist loosening.

The tip makes good contact on flat surfaces and allows you to make frequent adjustments with minimal surface damage.

A nylon locking patch grips threads to resist loosening.

These alloy steel set screws have an extra-soft nylon tip, which minimizes the damage that can occur from metal-on-metal contact. Use them set screws on soft surfaces such as aluminum.

Made of alloy steel, these set screws are often used in U-shaped and V-shaped grooves and on other sloped or angled surfaces. The oval tip allows for frequent adjustments with minimal surface damage.

Use the square head to turn these screws by hand, or use a wrench when you need more torque. Also known as half dog-point set screws, they have a protruding tip that locks within a mating hole or slot to keep parts aligned.

A nylon locking patch grips threads to resist loosening.

These 18-8 stainless steel set screws are chemical resistant. A pointed tip wedges into the contact surface for a secure hold on soft materials such as brass.

Stainless steel set screws have excellent corrosion resistance in most environments.

These set screws have a low-profile flat-faced ball tip for use in low-clearance applications.

A wide tip provides more gripping power than standard swivel-tip set screws. To use, remove the tip, thread the screw through the hole, and attach the tip on the other side.

About half the strength of medium-strength bolts, these Grade 2 bolts are for light duty fastening. Carriage bolts have a smooth, rounded head for a finished look. The square neck keeps these bolts from turning when tightening a nut.

These bolts have good chemical resistance. Carriage bolts have a smooth, rounded head for a finished look. The square neck keeps these bolts from turning when tightening a nut.

Bronze bolts are resistant to salt water, electrically conductive, and nonmagnetic. Carriage bolts have a smooth, rounded head for a finished look. The square neck keeps these bolts from turning when tightening a nut.

These slotted thumb screws have a thin, knurled head for use in low-clearance applications. Made of 18-8 stainless steel, they are chemical resistant.

Made from 18-8 stainless steel, these thumb screws are chemical resistant. They have a raised head that makes them easy to grip.

Stainless steel thumb screws have excellent corrosion resistance in most environments.

Wings provide more leverage than spade-head thumb screws for greater torque while tightening. A zinc plating provides corrosion resistance in wet environments.

Made from 18-8 stainless steel, these thumb screws are chemical resistant. Also known as dog- and pilot-point thumb screws, insert the point into a drilled hole or slot to hold items in place.

Arms provide a flat surface to push your fingers against.

For maximum contact with angled and uneven surfaces, the tip swivels in all directions. The tip is narrow so it will fit through threaded holes.