Nylon Cap Screws | McMaster-Carr

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	Material Material

Steel

Stainless Steel

Plastic

	Thread Locker Type Thread Locker Type

	Nylon Patch

	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	Length Length

	Head Type Head Type


Socket	Rounded

Hex	Flat

	Drive Style Drive Style


Hex	External Hex

Phillips	Slotted

	Threading Threading

	Fully Threaded
	Partially Threaded

	Head Diameter Head Diameter

	Color Color

	Off-White
	Black

	Socket Head Profile Socket Head Profile

	Standard

	Thread Direction Thread Direction

	Right Hand

	Head Height Head Height

	Thread Type Thread Type

UNC

Metric

UNF

	Thread Pitch Thread Pitch

	Thread Fit Thread Fit

	Thread Spacing Thread Spacing

Coarse

Fine

	Tensile Strength Tensile Strength

60,000 to 79,999 psi

80,000 to 99,999 psi

100,000 psi or greater

Not Rated

	Hardness Hardness

	Specifications Met Specifications Met

	Locking Type Locking Type

	Thread Locker

	Finish Finish

Black Oxide

Passivated

Zinc Plated

Zinc Yellow-Chromate Plated

	Drive Size Drive Size

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2,430 Products

Socket Head Screws

Plastic Socket Head Screws

Plastic screws are chemical and oil resistant, nonconductive, and lightweight.

Alloy Steel Thread-Locking Socket Head Screws

With a tensile strength of 170,000 psi, these alloy steel screws are among the strongest we carry. They are stronger than Grade 8 steel screws and are nearly two and a half times stronger than stainless steel thread-locking screws. They have a thread locker to prevent loosening from vibration.

18-8 Stainless Steel Thread-Locking
Socket Head Screws

These screws have good chemical resistance. A thread locker bonded to the threads prevents loosening from vibration.

Super-Corrosion-Resistant 316 Stainless
Steel Thread-Locking Socket Head Screws

More corrosion resistant than 18-8 stainless steel screws, these screws have excellent resistance to chemicals and salt water. They have a thread locker to resist vibration.

Vibration-Resistant Sealing Socket Head Screws

The nylon patch bonded to the threads of these socket head screws adds friction to keep vibration from loosening them, while their O-ring prevents leaks and seals out contaminants.

Rounded Head Screws

Nylon Pan Head Phillips Screws

Nylon pan head screws are chemical and oil resistant, nonconductive, and lightweight. Exposure to moisture may cause them to expand.

Metric Nylon Pan Head Phillips Screws

Made from nylon, these metric pan head screws are chemical and oil resistant, nonconductive, and lightweight. Exposure to moisture may cause them to expand.

Plastic Narrow Cheese Head Slotted Screws

Made from nylon, these screws are chemical and oil resistant, nonconductive, and lightweight.

Nylon Pan Head Slotted Screws

Nylon screws are chemical and oil resistant, nonconductive, and lightweight. Exposure to moisture may cause them to expand.

Metric Nylon Pan Head Slotted Screws

Made from nylon, these metric screws are chemical and oil resistant, nonconductive, and lightweight. Exposure to moisture may cause them to expand.

Plastic High-Profile Narrow Fillister Head Slotted Screws

Made from nylon, these screws are chemical and oil resistant, nonconductive, and lightweight.

Nylon Decorative Round Head Slotted Screws

Nylon screws are chemical and oil resistant, nonconductive, and lightweight. Exposure to moisture may cause them to expand.

Plastic Binding Head Slotted Screws

Plastic screws are ?chemical and oil resistant, nonconductive, and lightweight.

Thread-Locking Rounded Head Screws

Stainless Steel Thread-Locking
Button Head Hex Drive Screws

Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic. A nylon patch bonded to the threads adds friction to prevent loosening from vibration.

Metric Stainless Steel Thread-Locking
Button Head Hex Drive Screws

These metric 18-8 stainless steel screws have good chemical resistance and may be mildly magnetic. A nylon patch bonded to the threads adds friction to prevent loosening from vibration.

Alloy Steel Thread-Locking
Button Head Hex Drive Screws

Made from alloy steel, these screws are nearly twice as strong as stainless steel button head screws.

Metric Thread-Locking Pan Head Phillips Screws

These metric screws have a nylon patch bonded to the threads that adds friction to prevent loosening from vibration. Made from 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic.

Thread-Locking Pan Head Phillips Screws

A nylon patch bonded to the threads adds friction to prevent loosening from vibration. Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic.

Vibration-Resistant Sealing Rounded Head Screws

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

Hex Head Screws

Plastic Hex Head Screws

Plastic screws are chemical and oil resistant, nonconductive, and lightweight.

High-Strength Grade 8 Steel
Thread-Locking Hex Head Screws

Made from Grade 8 steel, these screws can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. They are more than twice as strong as our stainless steel thread-locking screws. The thread locker helps resist loosening from vibration.

Medium-Strength Metric Class 8.8 Steel
Thread-Locking Hex Head Screws

These Class 8.8 steel screws are suitable for fastening most machinery and equipment. They are over 50% stronger than stainless steel thread-locking screws. For vibration resistance, they have a thread locker bonded to the threads.

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.

Flat Head Screws

Nylon Slotted Flat Head Screws

These screws are chemical and oil resistant, nonconductive, and lightweight. Exposure to moisture may cause them to expand.

Metric Nylon Slotted Flat Head Screws

These metric screws are chemical and oil resistant, nonconductive, and lightweight. Exposure to moisture may cause them to expand.

Alloy Steel Thread-Locking Hex Drive Flat Head Screws

Made from alloy steel, these screws are nearly twice as strong as stainless steel flat head screws.

Stainless Steel Thread-Locking
Hex Drive Flat Head Screws

Stainless steel screws have excellent corrosion resistance in most environments.

Metric Phillips Thread-Locking Flat Head Screws

A nylon patch bonded to the threads of these metric screws adds friction to prevent loosening from vibration. Made of 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic.

Phillips Thread-Locking Flat Head Screws

A nylon patch bonded to the threads adds friction to prevent loosening from vibration. Made of 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic.

Socket Head Screws

Plastic Socket Head Screws

Alloy Steel Thread-Locking Socket Head Screws

18-8 Stainless Steel Thread-LockingSocket Head Screws

Super-Corrosion-Resistant 316 StainlessSteel Thread-Locking Socket Head Screws

Vibration-Resistant Sealing Socket Head Screws

Rounded Head Screws

Nylon Pan Head Phillips Screws

Metric Nylon Pan Head Phillips Screws

Plastic Narrow Cheese Head Slotted Screws

Nylon Pan Head Slotted Screws

Metric Nylon Pan Head Slotted Screws

Plastic High-Profile Narrow Fillister Head Slotted Screws

Nylon Decorative Round Head Slotted Screws

Plastic Binding Head Slotted Screws

Thread-Locking Rounded Head Screws

Stainless Steel Thread-LockingButton Head Hex Drive Screws

Metric Stainless Steel Thread-LockingButton Head Hex Drive Screws

Alloy Steel Thread-LockingButton Head Hex Drive Screws

Metric Thread-Locking Pan Head Phillips Screws

Thread-Locking Pan Head Phillips Screws

Vibration-Resistant Sealing Rounded Head Screws

Vibration-Resistant Sealing Rounded Head Screws

Hex Head Screws

Plastic Hex Head Screws

High-Strength Grade 8 SteelThread-Locking Hex Head Screws

Medium-Strength Metric Class 8.8 SteelThread-Locking Hex Head Screws

Stainless Steel Thread-Locking Hex Head Screws

Flat Head Screws

Nylon Slotted Flat Head Screws

Metric Nylon Slotted Flat Head Screws

Alloy Steel Thread-Locking Hex Drive Flat Head Screws

Stainless Steel Thread-LockingHex Drive Flat Head Screws

Metric Phillips Thread-Locking Flat Head Screws

Phillips Thread-Locking Flat Head Screws

18-8 Stainless Steel Thread-Locking
Socket Head Screws

Super-Corrosion-Resistant 316 Stainless
Steel Thread-Locking Socket Head Screws

Stainless Steel Thread-Locking
Button Head Hex Drive Screws

Metric Stainless Steel Thread-Locking
Button Head Hex Drive Screws

Alloy Steel Thread-Locking
Button Head Hex Drive Screws

High-Strength Grade 8 Steel
Thread-Locking Hex Head Screws

Medium-Strength Metric Class 8.8 Steel
Thread-Locking Hex Head Screws

Stainless Steel Thread-Locking
Hex Drive Flat Head Screws