Serrated Bolts | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	Thread Pitch Thread Pitch

	Length Length

	Head Type Head Type


Hex	Socket

	Material Material

Steel

Stainless Steel

Carbide

	Finish Finish

Zinc Plated

Black Oxide

Zinc Yellow-Chromate Plated

Corrosion-Resistant-Coated

Black Phosphate

	Threading Threading

	Fully Threaded
	Partially Threaded

	Fastener Strength Grade/Class Fastener Strength Grade/Class


Grade 5	Grade 8

Class 8.8

	Drive Style Drive Style


External Hex	Hex	Slotted

	Head Width Head Width

	Head Height Head Height

	Flange Diameter Flange Diameter

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Thread Type Thread Type

UNC

UNF

Metric

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Thread Spacing Thread Spacing

Coarse

Fine

	Tensile Strength Tensile Strength

	Thread Fit Thread Fit

	Hardness Hardness

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Shape Shape

	Height Height

462 Products

About Hex Head Screws and Bolts

Medium-Strength Grade 5 Steel
Serrated-Flange Hex Head Screws

Made from Grade 5 steel, these screws are suitable for fastening most machinery and equipment. Serrations under the flange provide mild vibration resistance.

Medium-Strength Metric Class 8.8 Steel
Serrated-Flange Hex Head Screws

These metric screws are suitable for fastening most machinery and equipment. They have a serrated flange that helps prevent loosening from vibration.

High-Strength Metric Steel
Serrated-Flange Hex Head Screws

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.

High-Strength Grade 8 Steel
Serrated-Flange Hex Head Screws

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.

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.

Extra-Wide Serrated-Flange Hex Head Screws

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.

Vibration-Resistant Serrated-Flange
Piercing Screws for Sheet Metal

Serrations under the head act as a brake to prevent over-tightening and damaging threads.

Steel Hex Head Thread-Cutting Screws for Metal

These steel screws are zinc plated to resist corrosion in wet environments.

Serrated-Flange Socket Head Screws

Serrations under the head grip the material's surface for mild vibration resistance. The flange distributes pressure across the material's surface, eliminating the need for a washer.

Clamping and Workholding

Hex-Head Gripper Screws

Make quick height adjustments by turning the threaded stud.

Set-Screw Grippers

Screw in from the top to adjust height or mount from the bottom with a hex key to set the gripping surface flush with the work surface.

Swivel-Tip Gripper Screws

Screw these grippers into place and make quick height adjustments.

Grippers

Maintain a secure hold on uneven or irregularly shaped parts by clamping against these serrated grippers.

Angled Grippers

The face of these grippers is angled 15°. They can be used in the jaws of lathe chucks.

Side Grippers

Clamp against these grippers for a secure hold on workpiece edges.

Swiveling Gripper Tips for Screws and Threaded Studs

Attach to the end of a screw or threaded stud—the serrated face swivels to grip uneven and angled surfaces. Also known as toggle and swivel-foot pads.

About Hex Head Screws and Bolts

Screws and Bolts

Medium-Strength Grade 5 SteelSerrated-Flange Hex Head Screws

Medium-Strength Metric Class 8.8 SteelSerrated-Flange Hex Head Screws

High-Strength Metric SteelSerrated-Flange Hex Head Screws

High-Strength Grade 8 SteelSerrated-Flange Hex Head Screws

18-8 Stainless Steel Serrated-Flange Hex Head Screws

Super-Corrosion-Resistant 316 StainlessSteel Serrated-Flange Hex Head Screws

Extra-Wide Serrated-Flange Hex Head Screws

Vibration-Resistant Serrated-FlangePiercing Screws for Sheet Metal

Steel Hex Head Thread-Cutting Screws for Metal

Serrated-Flange Socket Head Screws

Clamping and Workholding

Hex-Head Gripper Screws

Set-Screw Grippers

Swivel-Tip Gripper Screws

Grippers

Angled Grippers

Side Grippers

Swiveling Gripper Tips for Screws and Threaded Studs

Medium-Strength Grade 5 Steel
Serrated-Flange Hex Head Screws

Medium-Strength Metric Class 8.8 Steel
Serrated-Flange Hex Head Screws

High-Strength Metric Steel
Serrated-Flange Hex Head Screws

High-Strength Grade 8 Steel
Serrated-Flange Hex Head Screws

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

Vibration-Resistant Serrated-Flange
Piercing Screws for Sheet Metal