Nylon Patch Screws | McMaster-Carr

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	Thread Locker Type Thread Locker Type

Nylon Patch

Nylon Pellet

	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	Length Length

	Material Material

Stainless Steel

Steel

	Finish Finish

Black Oxide

Passivated

Zinc Plated

Zinc Yellow-Chromate Plated

	Head Type Head Type


Socket	Rounded

Hex	Flat

Headless

	Drive Style Drive Style


Hex	External Hex	Phillips

Slotted	Spring Plunger Wrench

	Locking Type Locking Type

Thread Locker

Without Thread Locker

	Threading Threading

	Fully Threaded
	Partially Threaded

	Socket Head Profile Socket Head Profile

	Standard

	Thread Direction Thread Direction

	Right Hand

	Specifications Met Specifications Met

	Thread Type Thread Type

Metric

UNC

UNF

	Thread Pitch Thread Pitch

	Head Diameter Head Diameter

	Nose Type Nose Type


Ball	Long

Hex

	Thread Spacing Thread Spacing

Coarse

Fine

	Head Height Head Height

	Drive Size Drive Size

	Nose Material Nose Material

Stainless Steel

Steel

Plastic

	Maximum Thread Locker Temperature Maximum Thread Locker Temperature

	Minimum Thread Locker Temperature Minimum Thread Locker Temperature

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2,545 Products

Socket Head Screws

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.

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.

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

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.

Thread-Locking Hex Head Screws

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.

Vibration-Resistant Flat Head Screws

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.

Shoulder Screws

Alloy Steel Thread-Locking Shoulder Screws

A locking element on the threads adds friction to resist loosening. Comparable to Grade 8 steel, these alloy steel shoulder screws are the strongest we offer.

Metric Alloy Steel Thread-Locking Shoulder Screws

Available in metric sizes, these screws have a locking element on the threads that adds friction to resist loosening. Comparable to Grade 8 steel, they are the strongest screws we offer.

18-8 Stainless Steel Thread-Locking Shoulder Screws

These shoulder screws have good chemical resistance.

Super-Corrosion-Resistant 316 Stainless
Steel Thread-Locking Shoulder Screws

More corrosion resistant than 18-8 stainless steel shoulder screws, these have excellent resistance to chemicals and salt water.

Metric Thread-Locking Precision Shoulder Screws

Thread-Locking Precision Shoulder Screws

Slotted Thread-Locking Precision Shoulder Screws

Set Screws

Alloy Steel Thread-Locking Cup-Point Set Screws

These alloy steel set screws have a thin edge that digs into hard surfaces for a secure hold. A nylon locking element grips threads to resist loosening.

Metric Alloy Steel Thread-Locking Cup-Point Set Screws

Made from alloy steel, these metric set screws have a thin edge that digs into hard surfaces for a secure hold. They have a nylon locking patch that grips threads to resist loosening.

Metric 18-8 Stainless Steel
Thread-Locking Cup-Point Set Screws

Made from 18-8 stainless steel, these metric set screws are chemical resistant. They have a nylon locking patch that grips threads to resist loosening.

18-8 Stainless Steel Thread-Locking
Cup-Point Set Screws

These 18-8 stainless steel set screws are chemical resistant. They have a nylon locking patch that grips threads to resist loosening.

Super-Corrosion-Resistant 316 Stainless
Steel Thread-Locking Cup-Point Set Screws

More corrosion resistant than 18-8 stainless steel set screws, these have excellent resistance to chemicals and salt water.

Thread-Locking Flat-Tip Set Screws

A nylon locking patch grips threads to resist loosening.

Thread-Locking Extended-Tip Set Screws

A nylon locking patch grips threads to resist loosening.

Spring Plungers

Slotted Ball-Nose Spring Plungers

Install these spring plungers with a screwdriver—they're slotted on one or both ends.

Hex-Drive Ball-Nose Spring Plungers

Install with a hex key for more torque than slotted ball-nose spring plungers.

Hex-Drive Long-Nose Spring Plungers

Install with a hex key for more torque than slotted long-nose spring plungers.

Long-Nose Spring Plungers

Install with a driver.

Slotted Long-Nose Spring Plungers

Slotted on both ends for installation with a screwdriver.

Long Hex-Nose Spring Plungers

Fasten from the nose end with a wrench for more torque than slotted long-nose spring plungers.

Extra-Long Hex-Nose Spring Plungers

These spring plungers have a nose that is about three-times longer than standard long hex-nose spring plungers.