NAS Screws | McMaster-Carr

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	Specifications Met Specifications Met	Show

	Specifications Met Specifications Met	Hide

Warning: Products have one, but not necessarily all, of the selected characteristics.

EHEDG Certified

	System of Measurement System of Measurement

	Thread Size Thread Size

0-80
2-56
4-40
6-32
6-40
8-32
10-24
10-32
1/4"-20
1/4"-28
5/16"-18
5/16"-24
3/8"-16
3/8"-24
1/2"-13
M0.5
M0.8
M0.9

	Length Length

	Material Material

Stainless Steel

	Finish Finish

Yellow-Chromate Plated

	Head Type Head Type


Socket	Rounded

Hex	Flat

	Drive Style Drive Style


Hex	External Hex

Phillips	Slotted

	Countersink Angle Countersink Angle

	Threading Threading

	Fully Threaded
	Partially Threaded

	Socket Head Profile Socket Head Profile

	Standard

	Tensile Strength Tensile Strength

	Head Diameter Head Diameter

	Rounded Head Style Rounded Head Style


Pan	Cheese

Fillister

	Thread Fit Thread Fit

	Head Height Head Height

	Thread Direction Thread Direction

	Right Hand

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

DFARS Specialty Metals
Compliant

DFARS Specialty Metals
COTS-Exempt

	Thread Type Thread Type

	Hardness Hardness

	Drive Size Drive Size

	Thread Spacing Thread Spacing

	Flat Head Profile Flat Head Profile


Standard	Undercut

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857 Products

Screws and Bolts

Mil. Spec. Alloy Steel Socket Head Screws

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

Mil. Spec. 18-8 Stainless Steel Socket 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.

High-Strength A286 Stainless Steel Socket Head Screws

Often used to fasten parts in engines and turbines, these are our strongest stainless steel screws. They are comparable in strength to alloy steel with the corrosion resistance of 18-8 stainless steel.

Mil. Spec. Stainless Steel Pan Head Phillips Screws

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

Mil. Spec. Steel Pan Head Phillips Screws

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

18-8 Stainless Steel Narrow
Cheese Head Slotted Screws

18-8 Stainless Steel Narrow Cheese Head Slotted Screws

More corrosion resistant than steel, and almost as strong, these 18-8 stainless steel screws have a narrower head than pan head screws to fit into tight spaces. They’re often used in electrical panels and next to flanges and raised surfaces in humid, damp, and washdown environments, but will corrode if exposed to salt water or chemicals.

Wire-Lockable Rounded Head Screws

Wire-Lockable Rounded Head Screws

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

Vibration-Resistant Sealing Rounded Head Screws

A nylon patch bonded to the threads adds friction to resist loosening from vibration.

High-Strength Steel Hex Head Screws with Phillips Drive

High-Strength Steel Hex Head Screws with Phillips Drive

When clearance for a wrench is limited, these screws have a Phillips drive so you can install them with a screwdriver. They are used for high-strength fastening.

Mil. Spec. Stainless Steel Phillips Flat Head Screws

Mil. Spec. Stainless Steel Phillips Flat Head Screws

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

Mil. Spec. Steel Phillips Flat Head Screws

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

Metric 18-8 Stainless Steel Slotted Flat Head Screws

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

18-8 Stainless Steel Precision Shoulder Screws

18-8 Stainless Steel Precision Shoulder
Screws with Material Certification

These shoulder screws come with a traceable lot number and material test report.

Slotted 18-8 Stainless Steel Precision Shoulder Screws

NAS Male-Female Threaded Hex Standoffs

NAS Male-Female Threaded Hex Standoffs

These standoffs are made to NAS specifications.

Inch-to-Inch Male-Female Hex Thread Adapters

Inch-to-Inch Male-Female Hex Thread Adapters

Join threads with small diameters to large or course threads to fine with these inch-sized adapters.

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