Screw Insulators | McMaster-Carr

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System of Measurement

Screw Size

Material

18-8 Stainless Steel

Fabric-Reinforced Buna-N

Garolite G-10/FR4

OD

ID

Length

Thickness

0.001" to 0.003"

0.002" to 0.004"

0.004" to 0.006"

0.005" to 0.006"

0.008" to 0.012"

0.009" to 0.012"

0.010" to 0.020"

0.011" to 0.021"

0.012" to 0.018"

0.013" to 0.017"

0.014" to 0.016"

0.015" to 0.025"

0.016" to 0.024"

0.016" to 0.025"

Color

Washer Type

Thread Size

Shape

Sleeve Height

Maximum Temperature

Less than 200° F

200° F to 249° F

250° F to 499° F

500° F to 999° F

1,000° F or greater

Sleeve OD

Overall Height

RoHS

Compliant with Exemptions

REACH

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Hardness

Performance

Chemical Resistant

Electrically Insulating

Heavy Vibration Resistant

High Temperature

Impact Resistant

Low Temperature

Moisture Resistant

Minimum Temperature

-250° F or less

-249° F to -50° F

-49° F to -25° F

-24° F to 0° F

Greater than 0° F

Specifications Met

Hex Size

Tensile Strength

Less than 10,000 psi

10,000 psi to 19,999 psi

20,000 psi to 49,999 psi

50,000 psi to 69,999 psi

70,000 psi or greater

Finish

How can we improve?

4,324 Products

Insulating Washers

Insulating Sleeve Washers

Insulating Sleeve Washers

Insulate screw threads to block electricity

Countersunk Insulating Sleeve Washers

Countersunk Insulating Sleeve Washers

Cover the screw head and part of the threads to block electricity

Insulating Cup Washers

Insulating Cup Washers

Insulate screw heads or nuts to block electricity

Insulating Sleeve Washer Assortments

Insulating Sleeve Washer Assortments

A collection of common sizes to insulate a variety of screw threads

Other Products

Spacers

Unthreaded to create space between two surfaces or objects, often to align them

Washers

Nearly every size and shape imaginable, from flat washers to clipped to curved

Standoffs

Threaded to separate or connect parts as well as position components in assemblies

Sealing Washers

Sealing Washers

Prevent fluids from leaking around fasteners

Finishing Washers

Finishing Washers

Screw heads sit flush to prevent snagging and to create a neat, finished appearance

Eyebolts

Route rope through the loop or attach hooks and shackles for lifting

Lock Washers

Resist vibration to prevent fasteners from loosening

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