Metric Machine Screws | McMaster-Carr

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	System of Measurement System of Measurement

	Thread Type Thread Type

	Thread Size Thread Size

	Thread Pitch Thread Pitch

	Length Length

	Head Type Head Type


Rounded	Flat

Socket	Hex

Oval	12-Point

	Material Material

Stainless
Steel

	Finish Finish

Black Phosphate

Corrosion-Resistant-Coated

Hot-Dipped Galvanized

Zinc Yellow-Chromate Plated

Zinc-Flake Coated

	Drive Style Drive Style

Drilled Spanner

External 12-Point

Hex with Pilot Recess

Tamper-Resistant Hex

Tamper-Resistant Torx

	Threading Threading

	Fully Threaded
	Partially Threaded

	Head Diameter Head Diameter

	Rounded Head Style Rounded Head Style


Pan	Button

Truss	Round

Cheese

	Head Height Head Height

	Specifications Met Specifications Met

EHEDG Certified

	Thread Direction Thread Direction


Right Hand	Left Hand

	Size Size

	Thread Spacing Thread Spacing

	Socket Head Profile Socket Head Profile


Standard	Low

Ultra-Low

	Tensile Strength Tensile Strength

Less than 20,000 psi

20,000 to 39,999 psi

40,000 to 59,999 psi

60,000 to 99,999 psi

100,000 psi or greater

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

RoHS Compliant with
Exemptions

	Thread Fit Thread Fit

	Hardness Hardness

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

REACH Compliant

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11,566 Products

Fasteners

Rounded Head Screws

A domed head sits above the surface of your material. Includes screws such as pan, button, binding, and truss head screws.

Flat Head Screws

Flat and oval head screws are angled under the head to fit in countersunk holes.

Socket Head Screws

With a deeper drive than flat and rounded head screws, socket head screws withstand more torque for a tighter hold. Install in a counterbored hole or above the surface.

Hex Head Screws

Hex head screws are easy to install with a wrench for a secure hold. Use them with a nut or in tapped holes.

Tapping, Wood, and Drywall Screws

While other screws and bolts require holes with threads, tapping screws create their own threads.

12-Point Screws

12-Point Screws

The head makes 12 points of contact with a wrench to handle more torque than a socket head or hex head screw.

Fastener Assortments

Fastener Assortments

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)