McMaster-Carr

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	Specifications Met Specifications Met

NAS

	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	Length Length

	Head Type Head Type


Socket	Rounded

Hex	Flat

	Material Material

Aluminum

Stainless Steel

Steel

	Finish Finish

Black Oxide

Cadmium Plated

Passivated

Yellow-Chromate Plated

	Drive Style Drive Style


Hex	External Hex

Phillips	Slotted

	Threading Threading

	Fully Threaded
	Partially Threaded

	Socket Head Profile Socket Head Profile

	Standard

	Head Diameter Head Diameter

	Head Height Head Height

	Thread Direction Thread Direction

	Right Hand

	Rounded Head Style Rounded Head Style


Pan	Cheese

Fillister

	Thread Type Thread Type

	Thread Pitch Thread Pitch

0.125 mm

0.2 mm

0.225 mm

	Drive Size Drive Size

	Thread Spacing Thread Spacing

Coarse

Fine

	Tensile Strength Tensile Strength

	Flat Head Profile Flat Head Profile


Standard	Undercut

	Shoulder Length Shoulder Length

	Head Width Head Width

	Shoulder Diameter Shoulder Diameter

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679 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

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. Theyâ€™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 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

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

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

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 1829 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.

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Screws and Bolts

Mil. Spec. Alloy SteelSocket Head Screws

Mil. Spec. 18-8 StainlessSteel Socket Head Screws

High-Strength A286 StainlessSteel Socket Head Screws

Mil. Spec. Stainless SteelPan Head Phillips Screws

Mil. Spec. Steel PanHead Phillips Screws

18-8 Stainless Steel NarrowCheese Head Slotted Screws

Wire-Lockable Rounded Head Screws

Vibration-Resistant SealingRounded Head Screws

High-Strength Steel Hex HeadScrews with Phillips Drive

Mil. Spec. Stainless SteelPhillips Flat Head Screws

Mil. Spec. Steel PhillipsFlat Head Screws

Metric 18-8 Stainless SteelSlotted Flat Head Screws

18-8 Stainless SteelPrecision Shoulder Screws

18-8 Stainless Steel PrecisionShoulder Screws with Material Certification

Slotted 18-8 Stainless SteelPrecision Shoulder Screws

NAS Male-Female Threaded Hex Standoffs

NAS Male-FemaleThreaded Hex Standoffs

Inch-to-Inch Male-Female Hex Thread Adapters

Inch-to-Inch Male-FemaleHex Thread Adapters

Mil. Spec. Alloy Steel
Socket Head Screws

Mil. Spec. 18-8 Stainless
Steel Socket Head Screws

High-Strength A286 Stainless
Steel Socket Head Screws

Mil. Spec. Stainless Steel
Pan Head Phillips Screws

Mil. Spec. Steel Pan
Head Phillips Screws

18-8 Stainless Steel Narrow
Cheese Head Slotted Screws

Vibration-Resistant Sealing
Rounded Head Screws

High-Strength Steel Hex Head
Screws with Phillips Drive

Mil. Spec. Stainless Steel
Phillips Flat Head Screws

Mil. Spec. Steel Phillips
Flat Head Screws

Metric 18-8 Stainless Steel
Slotted Flat Head Screws

18-8 Stainless Steel
Precision Shoulder Screws

18-8 Stainless Steel Precision
Shoulder Screws with
Material Certification

Slotted 18-8 Stainless Steel
Precision Shoulder Screws

NAS Male-Female
Threaded Hex Standoffs

Inch-to-Inch Male-Female
Hex Thread Adapters