Insulation Screws | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	Thread Type Thread Type

UNC

UNF

Metric

	Material Material

Plastic

Fiberglass

	Length Length

	Head Type Head Type


Rounded	Hex

Flat	Thumb

	Color Color

	Black		Off-White
	Beige		Gray
	Clear		White

	Drive Style Drive Style


Phillips	Slotted	External Hex

	Head Diameter Head Diameter

	Head Height Head Height

	Threading Threading

	Fully Threaded
	Partially Threaded

	Maximum Temperature Maximum Temperature

	Minimum Temperature Minimum Temperature

	Rounded Head Style Rounded Head Style


Pan	Round

Binding	Fillister

Cheese

	Thread Spacing Thread Spacing

Coarse

Fine

	Tensile Strength Tensile Strength

11,000 psi

Not Rated

	Thread Fit Thread Fit

Class 2A

Class 6g

Class 6h

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

RoHS Compliant

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

DFARS Specialty Metals
COTS-Exempt

	Rounded Head Profile Rounded Head Profile

	Thread Pitch Thread Pitch

	Countersink Angle Countersink Angle

82°

90°

100°

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

REACH Compliant

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1,301 Products

Rounded Head Screws

Metric High-Strength High-Temperature
PEEK Pan Head Phillips Screws

These metric PEEK screws are reliable in harsh environments up to 500° F and withstand acids, bases, and salt solutions. All are chemical and oil resistant, nonconductive, and lightweight.

High-Strength High-Temperature
PEEK Pan Head Phillips Screws

Reliable in harsh environments up to 500° F, PEEK screws withstand acids, bases, and salt solutions. They are chemical and oil resistant, nonconductive, and lightweight.

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.

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.

Impact-Resistant Polycarbonate
Pan Head Phillips Screws

Polycarbonate screws resist breaking in high-impact applications. All are chemical and oil resistant, nonconductive, and lightweight.

Metric Impact-Resistant Polycarbonate
Pan Head Phillips Screws

Made from polycarbonate, these metric pan head screws resist breaking in high-impact applications. They are chemical and oil resistant, nonconductive, and lightweight.

Extreme-Temperature Chemical-Resistant
PTFE Pan Head Slotted Screws

PTFE screws withstand harsh chemicals and temperatures from -100° F to 500° F. They are nonconductive, lightweight, and resist wear due to their slippery surface.

Metric Extreme-Temperature Chemical-Resistant
PTFE Pan Head Slotted Screws

These metric PTFE screws withstand harsh chemicals and temperatures from -100° F to 500° F. They are nonconductive, lightweight, and resist wear due to their slippery surface.

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.

Extreme-Temperature Chemical-Resistant
PTFE Decorative Round Head Slotted Screws

PTFE screws withstand harsh chemicals and temperatures from -100° F to 500° F.

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 High-Profile Narrow Fillister Head Slotted Screws

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

Plastic Binding Head Slotted Screws

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

Plastic Narrow Cheese Head Slotted Screws

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

Hex Head Screws

Fiberglass Hex Head Screws

Fiberglass screws are stronger than plastic screws, chemical and oil resistant, nonconductive, and lightweight.

Plastic Hex Head Screws

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

Fiberglass Flanged Hex Head Screws

These screws are chemical and oil resistant, nonconductive, and lightweight. The flange eliminates the need for a washer, distributing pressure where the screw meets the surface.

Plastic Slotted Flat Head Screws

Metric Impact-Resistant Polycarbonate
Slotted Flat Head Screws

These metric polycarbonate screws resist breaking in high-impact applications better than other plastic screws. All are chemical and oil resistant, nonconductive, and lightweight.

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.

Impact-Resistant Polycarbonate
Slotted Flat Head Screws

Polycarbonate screws resist breaking in high impact applications better than other plastic screws. All are chemical and oil resistant, nonconductive, and lightweight.

High-Strength High-Temperature
PEEK Slotted Flat Head Screws

These screws are more reliable in high-stress, high-temperature environments than other plastic screws. They withstand water, steam, and temperatures up to 500° F.

Extreme-Temperature Chemical-Resistant
PTFE Slotted Flat Head Screws

PTFE screws are more chemical resistant than other plastic screws and withstand temperatures from -100° F to 500° F.

Plastic Thumb Screws

Nylon Raised-Head Thumb Screws

A raised head makes these thumb screws easy to grip. Made from nylon, they're chemical resistant, nonconductive, and lightweight.

Nylon Thumb Screws with Slotted Drive

These nylon thumb screws are chemical resistant, nonconductive, and lightweight.