Choose these metric screws for high-stress applications, such as valves, pumps, motors, and automotive suspension systems. They are about 10% stronger than medium-strength steel screws. Their serrated flange helps to resist vibration.

Made from Grade 5 steel, these screws are suitable for fastening most machinery and equipment. 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 screws have a flange that's at least 10% larger than a standard flange for more gripping power. Serrations under the head provide mild vibration resistance.

These Class 8.8 steel screws are suitable for fastening most machinery and equipment. They are over 50% stronger than stainless steel thread-locking screws. For vibration resistance, they have a thread locker bonded to the threads.

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.

These screws have good chemical resistance. A thread locker bonded to the threads prevents 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 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.

Stainless steel screws have excellent corrosion resistance in most environments. They have a split lock washer to create tension and resist loosening from vibration.

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

Made from stainless steel, these screws have good chemical resistance and may be mildly magnetic. A curved washer protects delicate surfaces while providing constant tension. Also known as Square Cone Sems screws, the washer rotates freely but is permanently attached.

A zinc plating provides mild corrosion resistance.

Made from stainless steel, these screws have good chemical resistance and may be mildly magnetic. All have a washer with sharp external teeth that dig into surfaces for maximum holding power and vibration resistance. Also known as Sems screws, the washer rotates freely but is permanently attached.

The washer on these screws has sharp external teeth that dig into surfaces for maximum holding power and vibration resistance. Also known as Sems screws, the washer rotates freely but is permanently attached.

Stainless steel screws have excellent corrosion resistance in most environments.

Made from stainless steel, these metric screws have good chemical resistance and may be mildly magnetic. The washer has sharp internal teeth that dig into surfaces to resist large amounts of vibration while the smooth outside edge provides a finished look. Also known as Sems screws, the washer rotates freely but is permanently attached.

These metric screws have a washer with sharp internal teeth that dig into surfaces to resist large amounts of vibration. The smooth outside edge of the washer provides a finished look. Also known as Sems screws, the washer rotates freely but is permanently attached.

Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic. A nylon patch bonded to the threads adds friction to prevent loosening from vibration.

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

A nylon patch bonded to the threads adds friction to prevent loosening from vibration. Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic.

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

A nylon patch bonded to the threads of these metric screws adds friction to prevent loosening from vibration. Made of 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic.

Also known as reverse-key plow screws and bucket-tooth bolts, these bolts have a locking key that keeps them from turning when tightening a nut. Often used on heavy equipment, such as plows, they have a head that's angled underneath to sit flush within countersunk holes.

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

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.

This lock has a latch bolt to secure doors in the closed position.

Choose these locks if you need locks that each open with a different key.

Use the same key to lock and unlock multiple deadbolts, or use the turnpiece on the inside to open the door.

A guard over the latch prevents tampering.

Often used on restroom doors, a message on the outside of the door changes when the lock is engaged or disengaged. Locks open with a turnpiece inside and an emergency access tool outside.

Enter a combination and turn the turnpiece to unlock these locks from the outside; turn the inside or outside turnpiece to manually relock them.

Also known as passage knobs, these knobs do not lock.

In addition to lasting twice as long as standard door knobs, these are made entirely of corrosion-resistant materials to stand up to washdown and marine environments.

Also known as passage handles, these do not lock.

In addition to lasting twice as long as button-locking door knobs, these are made entirely of corrosion-resistant materials to stand up to washdown and marine environments.

For frequently used doors, these handles last twice as long as standard button-locking door handles.

For frequently used doors, these handles last twice as long as standard keyed alike key-locking door handles.

These knobs can always be opened from the inside, while the locks on the outside each open with a different key.

For frequently used doors, these knobs last twice as long as standard key-locking door knobs.

Lock and unlock the outside handle with both a master key and a unique door key. The inside handle can always open the door.

Lock and unlock each of these knobs with the same key. The inside knob can always open the door.

In addition to lasting twice as long as standard key-locking door handles, these mortise mount into a cutout in the door to withstand vandalism.

Install your own compatible lock cylinder to lock these knobs from the outside. The inside knob can always open the door.

The locks on these handles open with the same key. They can open from the inside handle whether locked or unlocked.

For frequently used doors, these handles last twice as long as standard keyed alike self-locking door handles.

For frequently used doors, these handles last twice as long as standard master keyed self-locking door handles.

Unlock these knobs with a master key and a key unique to that door. They are always locked from the outside, but doors can be opened from the inside knob.

For frequently used doors, these handles last twice as long as standard self-locking door handles.

The outside of these handles is always locked, and can be unlocked with a unique key. The inside handle can always open the door.

These knobs are always locked from the outside. Unlock multiple knobs with the same key, or turn the inside knob to open.

In addition to lasting twice as long as standard self-locking door handles, these mortise mount into a cutout in the door to withstand vandalism.

Key and replace lock cores without dismantling the entire door handle. Also known as interchangeable-core handles.

These handles lock and unlock with a button on the inside or a key on the outside; they all share the same key.

For frequently used doors, these handles last twice as long as standard master keyed key- and button-locking door handles.

These knobs lock and unlock with a button on the inside or their own unique keys.

Choose these handles if you want to use your own compatible lock cylinders.

In addition to lasting twice as long as standard key- and button-locking door knobs, these are made entirely of corrosion-resistant materials to stand up to washdown and marine environments.

For frequently used doors, these handles last twice as long as standard keyed alike key-and button-locking door handles.

Lock and unlock these handles with a button on the inside or a key on the outside. Handles each open with a different key.

Slide the bolt and drop the knob into the notch to secure.

Bolts are spring-loaded to stay latched until you activate the pull.

Push the bolt into the strike plate to secure doors, gates, and cabinets.

The strike has angled ends so these latches can accept their bolt even when doors become misaligned.

The mounting screws on these padlockable latches are concealed to prevent tampering.

These padlockable latches are reversible for right- and left-hand mounting.

These padlockable latches are often used on 2" and 3" track to keep garage and other sectional overhead doors closed.

Choose these locks if you need locks that each open with a different key.

Choose these locks if you need several locks that open with the same key.

Choose these locks if you need locks that each open with a different key.

With thicker bodies and longer bolts, these locks resist prying to provide more security than other keyed alike deadbolt cabinet door locks.

To provide more security than other master keyed deadbolt cabinet door locks, these locks have thicker bodies and longer bolts to resist prying.

Choose these locks if you need locks that each open with a different key.

These drawer locks open with their own keys and with a master key.

Choose these locks if you need to lock multiple drawers with the same key.

To provide more security than other master keyed deadbolt cabinet door locks, these locks have thicker bodies and longer bolts to resist prying.

With thicker bodies and longer bolts, these locks resist prying to provide more security than other keyed alike deadbolt cabinet door locks.

To ensure the correct fit on your drawer, these locks include two latch bolts.