Stainless Steel Hex Head Screws

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	Material Material

18-8 Stainless Steel

316 Stainless Steel

410 Stainless Steel

17-4 PH Stainless Steel

450 Stainless Steel

Bumax 88 Stainless Steel

	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	Length Length

	Finish Finish

Black Oxide

Blue PTFE Coated

Ultra-Corrosion-Resistant
Coated

Zinc Plated

	Head Type Head Type


Hex	Thumb

Headless	Rounded

Socket

	Threading Threading

	Fully Threaded
	Partially Threaded

	Fastener Strength Grade/Class Fastener Strength Grade/Class


Grade B8	Grade B8M

	Head Width Head Width

	Head Height Head Height

	Drive Style Drive Style


External Hex	Slotted

Phillips	Hex

	Thread Direction Thread Direction


Right Hand	Left Hand

	Thread Type Thread Type

	Thread Pitch Thread Pitch

	Thread Spacing Thread Spacing

Coarse

Fine

Extra Fine

	Tensile Strength Tensile Strength

Less than 100,000 psi

100,000 to 109,999 psi

110,000 to 129,999 psi

130,000 to 159,999 psi

160,000 psi or greater

Not Rated

	Screw Size Screw Size

	Specifications Met Specifications Met

ASME

ASTM

DIN

FDA

Fed. Spec.

IFI

ISO

Mil. Spec.

	Thread Fit Thread Fit

	Tip Type Tip Type


Pointed	Drilling

Blunt

	Screw Features Screw Features

	Head Diameter Head Diameter

	For Use In For Use In

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About Hex Head Screws and Bolts

18-8 Stainless Steel
Hex Head Screws

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

Mil. Spec. 18-8 Stainless
Steel Hex Head 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.

Left-Hand Threaded 18-8
Stainless Steel Hex Head 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.

Super-Corrosion-Resistant 316
Stainless Steel Hex Head Screws

More corrosion resistant than 18-8 stainless steel screws, these 316 stainless steel screws have excellent resistance to chemicals and salt water.

High-Strength 17-4 PH Stainless
Steel Hex Head Screws

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.

Super-Corrosion-Resistant
High-Strength Bumax
88 Hex Head Screws

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

Stainless Steel Hex Screw
and Nut Kits for Pipe Flanges

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

18-8 Stainless Steel Heavy Hex Head
Screws for High-Pressure Applications

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.

Super-Corrosion-Resistant 316
Stainless Steel Heavy Hex Head
Screws for High-Pressure Applications

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.

Stainless Steel Flanged Hex
Head Screws with Slotted Drive

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.

Stainless Steel Flanged
Hex Head Screws

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.

Extreme-Strength Stainless
Steel Flanged Hex Head Screws

For the strength 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.

18-8 Stainless Steel
Serrated-Flange Hex Head Screws

Made from 18-8 stainless steel, these screws have good chemical resistance. Their flange is serrated to help prevent loosening from vibration.

Super-Corrosion-Resistant 316
Stainless Steel Serrated-Flange
Hex Head Screws

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.

Stainless Steel Thread-Locking
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.

Stainless Steel Wire-Lockable
Hex Head Screws

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.

Hex Head Screws with Flat Washer

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

Sealing Hex Head Screws

An O-ring under the head prevents leaks and seals out contaminants.

Vented Hex Head Screws

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

Sanitary Hex Head Screws

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

Tapping, Wood, and Drywall Screws

18-8 Stainless Steel Flanged Hex
Head Screws for Sheet Metal

18-8 stainless steel screws have good chemical resistance.

Super-Corrosion-Resistant 316
Stainless Steel Flanged Hex
Head Screws for Sheet Metal

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

High-Strength 410 Stainless
Steel Flanged Hex Head
Screws for Sheet Metal

Stronger and more wear resistant than 18-8 and 316 stainless steel, these screws are mildly chemical resistant.

Stainless Steel Vibration-Damping
Hex Head Screws for Sheet Metal

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

Stainless Steel Flanged
Piercing Screws for Sheet Metal

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

High-Strength 410 Stainless Steel
Hex Head Drilling Screws for Metal

410 stainless steel is strong, wear resistant, and mildly chemical resistant.

18-8 Stainless Steel Hex
Head Drilling Screws with
Hardened Steel Tip for Metal

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

Super-Corrosion-Resistant
High-Strength 410 Stainless Steel
Hex Head Drilling Screws for Metal

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

Stainless Steel Drilling
Screws with Washer for Metal

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

Stainless Steel Hex Head
Drilling Screws for Aluminum

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

Stainless Steel Hex Head
Thread-Cutting Screws for Metal

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

18-8 Stainless Steel Hex
Head Screws for Wood

18-8 stainless steel screws have good chemical resistance.

Super-Corrosion-Resistant
316 Stainless Steel Hex
Head Screws for Wood

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

Stainless Steel Flanged
Hex Head Screws for Wood

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

Stainless Steel Hex Head Tapping
Screws for Concrete, Block, and Brick

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

Heavy Duty Hex Head Tapping
Screws for Concrete, Block, and Brick

Also known as Tapcons, use these screws in applications requiring high strength.