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

With a head one and a half times taller than a standard socket head, these screws are easier to install in deep counterbored holes and other hard-to-reach places.

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

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

Fasten these screws inside a high-vacuum system without bringing in contaminants.

The nylon patch bonded to the threads of these socket head screws adds friction to keep vibration from loosening them, while their O-ring prevents leaks and seals out contaminants.

Made from 18-8 stainless steel, these metric pan head screws have good chemical resistance and may be mildly magnetic.

Made to Japanese Industrial Standards, these screws have narrower and shorter heads than standard Phillips pan head screws.

Made from 18-8 stainless steel, these metric screws have good chemical resistance and may be mildly magnetic. The extra-wide truss head distributes holding pressure to reduce the likelihood of crushing thin material.

A narrow head allows these screws to fit in tight spaces and a deep drive lets you maximize driving power.

Good for use outdoors and in washdown environments, these metric 18-8 stainless steel screws are more corrosion resistant than steel and nearly as strong. Their pan-shaped head sits nearly flat on the fastened surface, so there’s no need to countersink a hole.

These screws have good chemical resistance.

When head height is important, these screws fit into spaces where other wide head screws won't fit. Also known as shutter screws, their ultra-wide truss head distributes the load over a large area for excellent holding pressure.

Stainless steel screws have excellent corrosion resistance in most environments.

Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic. Torx and Torx-Plus drives have more points of contact than other drives, allowing you to tighten the screw without damaging the recess.

Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic. Torx and Torx-Plus drives have more points of contact than other drives, allowing you to tighten the screw without damaging the recess.

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

18-8 stainless steel screws have good chemical resistance and may be mildly magnetic. The flange distributes pressure across a wide surface, eliminating the need for a separate washer.

These metric 18-8 stainless steel screws have good chemical resistance and may be mildly magnetic. The flange is wider and thicker than our other flanged screws, so they distribute pressure the best.

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 stainless steel 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.

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.

The flat washer distributes holding pressure and protects delicate surfaces from damage while the split lock washer adds tension to prevent loosening from small amounts of vibration.

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

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

Wire these screws together through the hole in the head for better vibration resistance than any other rounded head screw.

Made from 18-8 stainless steel, these metric button head screws have good chemical resistance and may be mildly magnetic. The tamper-resistant Torx drive (also known as a pin-in Torx drive) makes them difficult to remove without special tools.

To prevent unwanted removal, these screws have a tamper-resistant Torx drive—also known as a pin-in Torx drive—that makes them difficult to unscrew without special tools. An O-ring under the head blocks leaks and seals out dust and dirt.

These metric screws have a drilled spanner drive, making them difficult to remove without special tools. Made from 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic.

These 18-8 stainless steel button head screws have good chemical resistance and may be mildly magnetic. The tamper-resistant hex drive (also known as a pin-in hex drive) makes them difficult to remove without special tools.

Stainless steel screws have excellent corrosion resistance in most environments.

These metric screws have a silicone O-ring that prevents leaks and seals out contaminants. Made from 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic.

To vent fluid and gas trapped under the screw, these metric screws are drilled through the shaft. Made from 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic.

Tighten these screws by turning them to the left; once fastened, they prevent loosening from counterclockwise motion. Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic.

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

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

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.

For strength comparable to that of Grade 9 steel and the corrosion resistance of stainless steel, choose these screws. They are work-hardened for extreme strength. The flange eliminates the need for a separate washer.

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.

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

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

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

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

Choose these screws for their adherence to strict military standards for material and construction.

These screws have a decorative, domed head that sits above the surface when installed.

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

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

Made of 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic.

With a tamper-resistant Torx or Torx Plus drive (also known as a pin-in Torx or Torx Plus drive), these screws are difficult to remove without special tools.

With an O-ring under the head, these metric screws seal out leaks and contaminants while also preventing unwanted removal.

These screws have a tamper-resistant drilled spanner drive, which makes them difficult to remove without special tools.

A tamper-resistant hex drive (also known as pin-in hex drive) makes these screws difficult to remove without special tools.

Stainless steel screws have excellent corrosion resistance in most environments.

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

To prevent leaks and seal out contaminants, these metric screws have an O-ring under the head.

To vent fluids and gases trapped under the screw, these metric screws are drilled through the shaft.

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

18-8 stainless steel screws have good chemical resistance.

Made from 18-8 stainless steel, these screws are chemical resistant.

A thick, decorative head provides a finished appearance.

Also known as pin-in-hex, install and remove these screws with a tamper-resistant hex driver.

The S-shaped drive can be installed with a standard slotted driver, but requires a special tool for removal.

These square-drive screws are beveled under the head for use in countersunk holes.

A tamper-resistant Torx driver is required for installation and removal. Also known as pin-in-Torx, these screws allow you to apply extra force with less slippage or damage to the recess.

Also known as pin-in-hex, install and remove these screws with a tamper-resistant hex driver.

Made from 18-8 stainless steel, these screws are chemical resistant.

Made from 18-8 stainless steel, these screws are chemical resistant.

18-8 stainless steel screws have good chemical resistance.

A decorative rounded top provides a finished appearance.

Made from stainless steel to resist galvanic corrosion, use these screws to fasten aluminum to aluminum and steel framing. They save you time and effort by drilling their own holes and fastening in a single operation.

18-8 stainless steel screws have good chemical resistance.

18-8 stainless steel screws have good chemical resistance.

18-8 stainless steel screws have good chemical resistance.

18-8 stainless steel screws have good chemical resistance.

18-8 stainless steel screws have good chemical resistance.

The neoprene-backed washer seals out contaminants.

18-8 stainless steel screws have good chemical resistance.

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.

18-8 stainless steel screws have good chemical resistance.

These screws have metric thread sizes. They are 18-8 stainless steel for good chemical resistance.

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

These shoulder screws are angled under the head to sit flush in countersunk holes.

With a hex socket at the tip as well as the head, you can fasten these shoulder screws from the tip when the head cannot be reached.