Twice as strong as low-strength steel screws, these metric Class 8.8 steel screws can be used to fasten most machinery and equipment.

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

Made to Japanese Industrial Standards, these Class 8.8 steel screws are good for fastening most machinery and equipment.

Choose these Class 10.9 steel screws for high-stress applications, such as valves, pumps, motors, and automotive suspension systems. They are at least 25% stronger than medium-strength steel screws.

Choose these screws for their adherence to strict military standards for material and construction. Their high tensile strength means they can be used in demanding, high-stress applications.

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.

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.

With the strength of steel and the corrosion resistance of 18-8 stainless steel, these 17-4 PH stainless steel screws are suitable for high-strength fastening in corrosive environments.

Aluminum screws are one-third the weight of steel and have good corrosion resistance.

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

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.

Made from 316 stainless steel, these Grade B8M screws are more corrosion resistant than 18-8 stainless steel screws. Also known as pressure bolts, these screws meet the high-pressure and high-temperature regulations of ASTM A193.

Made of Grade B7 steel, these screws are nearly twice as strong as Grade B8 and Grade B8M stainless steel screws. 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 metric screws are at least 25% stronger than medium-strength steel screws. Use them in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. The flange distributes pressure where the screw meets the surface, so there's no need for a washer.

When there’s not enough room to turn these screws with a wrench, slip a screwdriver into their Phillips drive. About half as strong as medium-strength steel screws, they’re best for light duty fastening applications, such as securing access panels. The flange distributes pressure where the screw meets the surface, so you don’t need a separate washer.

Choose these metric screws for fastening most machinery and equipment. With a flange distributing pressure where the screw meets the surface, there is no need for a separate 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.

Install these screws with a wrench or a screwdriver. Made from stainless steel, they have good corrosion resistance. A flange under the head means a separate washer is not necessary.

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 metric screws are suitable for fastening most machinery and equipment. They have a serrated flange that helps 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.

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

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.

Twice as strong as low-strength steel screws, these Grade 5 screws are suitable for fastening most machinery and equipment. They come with matching nuts and washers so you can make a complete joint.