4-40 Standoffs | McMaster-Carr

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System of Measurement

Material

Stainless Steel

Hex Size

Gender

Shape

Thread Length

Threading

Partially Threaded

Threaded on Both Ends

OD

Nut Type

Hex Length

Specifications Met

SAE AMS-QQ-S-763

Mount Type

Threaded Insert

Finish

Zinc Yellow-Chromate Plated

DFARS Specialty Metals

REACH

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

Thread Fit

Metric Class 6g

Metric Class 6H

Unified Standard Class 1B

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

Performance

Abrasion Resistant

Chemical Resistant

Corrosion Resistant

Flame Retardant

Vibration Resistant

Weather Resistant

Tensile Strength

10,000 psi to 19,999 psi

20,000 psi to 49,999 psi

50,000 psi to 99,999 psi

Drive Style

Width

For Standoff OD

How can we improve?

1,055 Products

Standoffs

Male-Female Threaded Hex Standoffs

Male-Female Threaded Hex Standoffs

Separate, position, and connect components

Female Threaded Hex Standoffs

Female Threaded Hex Standoffs

Stack components and create space between parts, then tighten with a wrench

Female Threaded Round Standoffs

Female Threaded Round Standoffs

Stack components and create space between parts

Mil. Spec. Male-Female Threaded Hex Standoffs

Mil. Spec. Male-Female Threaded Hex Standoffs

Manufactured and tested to meet National Aerospace Standard specifications

Male-Female Threaded Hex Plastic Standoffs

Male-Female Threaded Hex Plastic Standoffs

Lightweight and nonconductive with flat sides you can grip with a wrench

Mil. Spec. Female Threaded Hex Standoffs

Mil. Spec. Female Threaded Hex Standoffs

Manufactured and tested to meet National Aerospace Standard specifications

Male Threaded Hex Standoffs

Male Threaded Hex Standoffs

Separate, position, and connect two components that have threaded holes

Female Threaded Hex Plastic Standoffs

Female Threaded Hex Plastic Standoffs

Lightweight and nonconductive with flat sides you can grip with a wrench

Press-Fit Threaded Standoffs

Press-Fit Threaded Standoffs

Permanently connect without welding, tapping, or installing extra hardware

Thread-locking Male-Female Threaded Hex Standoffs

Thread-locking Male-Female Threaded Hex Standoffs

Secure components on vibrating machinery

Female Threaded Round Plastic Standoffs

Female Threaded Round Plastic Standoffs

Lightweight, nonconductive, and rust-resistant

Splined Press-Fit Threaded Standoffs

Splined Press-Fit Threaded Standoffs

Splines bite into sheet metal for a permanent hold that doesn't rotate

Hinged Male-Female Threaded Round Standoffs

Hinged Male-Female Threaded Round Standoffs

Pivot up to 180° to access components without taking anything apart

Crimp-On Threaded Round Standoffs

Crimp-On Threaded Round Standoffs

Permanently mount components to thin sheets

Hinged Female Threaded Round Standoffs

Hinged Female Threaded Round Standoffs

Pivot up to 180° to access components without taking anything apart

Hinged Male Threaded Round Standoffs

Hinged Male Threaded Round Standoffs

Pivot up to 180° to access components without taking anything apart

Other Products

Standoff Caps

Create a finished look on standoffs and protect them from dirt and debris

Coupling Nuts

Connect and extend threaded rods

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Jack Screws

Secure computer cables and panels

Vibration-Damping Mounts

Vibration-Damping Mounts

Attach to machinery to reduce vibration and noise and extend service life

Adhesive-Mount Nuts

Adhesive-Mount Nuts

Attach threads to material that’s too thin for a threaded insert

Weld Nuts

Weld to metal surfaces to add permanent threads

Socket Head Screws

Socket Head Screws

With a deeper drive than flat and rounded head screws, these withstand more torque for a tighter hold

Bumpers

Absorb impact to protect equipment and surfaces from dents and scuffs

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