Threaded Spacers | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	Length Length

	Material Material

	Hex Size Hex Size

	Shape Shape


Hex	Round

Octagon	Square

	Gender Gender


Female	Male

	Threading Threading

	Fully Threaded
	Partially Threaded
	Threaded on Both Ends

	OD OD

	Thread Length Thread Length

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

RoHS Compliant

RoHS Compliant with
Exemptions

	Tensile Strength Tensile Strength

100,000 psi or greater

Not Rated

	Hardness Hardness

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

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	Thread Fit Thread Fit

	Specifications Met Specifications Met

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

REACH Compliant

	Finish Finish

Zinc Yellow-Chromate Plated

Yellow-Chromate Plated

	Hex Length Hex Length

	For Adapting For Adapting

	PEM® Part Number PEM® Part Number

	Pitch Pitch

	Thread Pitch Thread Pitch

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8,511 Products

Threaded Standoffs

Male-Female Threaded Hex Standoffs

NAS Male-Female Threaded Hex Standoffs

These standoffs are made to NAS specifications.

Female Threaded Hex Standoffs

NAS Female Threaded Hex Standoffs

Choose these standoffs for their adherence to NAS 1831 specifications.

Female Threaded Round Standoffs

Male Threaded Standoffs

Electrical-Insulating Female Threaded Standoffs

Protect components from electrical charges.

Male-Female Pillar Posts

Female Pillar Posts

Sanitary Threaded Standoffs

Mount components onto food processing lines, walls, and sanitary equipment while leaving space to clean in between.

Hinged Male-Female Threaded Round Standoffs

Hinged Male Threaded Round Standoffs

Hinged Female Threaded Round Standoffs

Jack Screws

Secure computer cables and panels.

Press-Fit Threaded Standoffs

Press-Fit Threaded Standoffs with Closed End

Press-Fit Threaded Standoffs with Open End

Miniature Press-Fit Threaded Standoffs with Open End

These standoffs are designed to fit in the limited space of compact electronics such as laptops and hand-held devices.

Splined Press-Fit Threaded Standoffs with Open End

Crimp-On Female Threaded Round Standoffs

Often called swage standoffs because you permanently crimp them into a panel.

Snap-In Supports with Male Threaded Connection

Thread the male connection into a tapped hole and snap the other end into a panel for a secure hold that can be released for repairs and upgrades.

Male-Female Thread Adapters

Inch-to-Inch Male-Female Hex Thread Adapters

Change thread sizes or types, such as fine to coarse threads, on parts without changing gender.

Metric-to-Metric Male-Female Hex Thread Adapters

In addition to joining male- and female-threaded parts, these adapters can increase or decrease metric thread sizes and change the thread pitch.

Inch-to-Metric Male-Female Hex Thread Adapters

Change inch threads to metric with these adapters, or swap metric threads for inch. An external hex lets you tighten or loosen them with a wrench.

Male-Female Round Universal
Thread Adapters with Through Hole

Connect male- and female-threaded parts of different thread types and sizes, while allowing air, liquids, wire, or other thin materials to pass through.

Slotted-Drive Male-Female Round Thread Adapters

Inch-to-NPT Male-Female Hex
Thread Adapters with Through Hole

The through hole allows you to connect float rods to float valves.

Inch-to-NPT Male-Female Hex Thread Adapters

Male Thread Adapters

Inch-to-Inch Male Hex Thread Adapters

Need to join two female-threaded parts, such as coupling nuts, with dissimilar inch thread sizes? Attach them to these adapters and tighten the exterior hex nut for a secure connection.

Inch-to-Inch Male Round Thread Adapters

Metric-to-Metric Male Hex Thread Adapters

Twist these adapters onto female metric threads to change pitch or switch thread sizes.

Metric-to-Metric Male Round Thread Adapters

Left-Hand to Right-Hand Male Thread Adapters

Male Round Universal Thread
Adapters with Through Hole

Join two female-threaded parts of various thread types and sizes, while allowing air, liquids, wire, or other thin materials to pass through.

Inch-to-Metric Male Hex Thread Adapters

One side inch, one side metric, and a hex in the middle—these handy fasteners connect two female-threaded parts, such as coupling nuts, adapting from inch threads to metric. Tighten with a standard wrench.

Inch-to-Metric Male Round Thread Adapters

Female Thread Adapters

Inch-to-Inch Female Hex Thread Adapters

Connect two differently sized male-threaded parts, such as threaded rods, and tighten with a standard wrench.

Inch-to-Metric Female Hex Thread Adapters

Adapt threaded rods from inch to metric. These adapters connect two male-threaded fasteners, so you can change the gender of a mating part or increase or decrease its thread size. The hex-shaped body fits into the head of a standard wrench.

Left-Hand to Right-Hand Female Hex Thread Adapters

Often called sleeve nuts, these thread adapters fasten parts with right-hand threads to parts with left-hand threads.

Metric-to-Metric Female Hex Thread Adapters

Increase or decrease metric thread size from one male-threaded part to another. Commonly used to connect two differently sized threaded rods, they have a hex-shaped body, so you can tighten them with a standard wrench.

Threaded Rods and Studs

Hollow Female Threaded Rods

Connect and separate threaded rods, studs, and other components. These hollow rods have internal threads on both ends, so you can make connections and still pass wiring and other objects through the center of the rod.

Hex Drive Threaded Rods

A hex drive on one end allows these rods to be turned with a hex key for ease of installation.

Standoff Panel-Hanging Brackets

Two-Piece Standoff Panel-Hanging Brackets

Fit these brackets through drilled holes in panels.

Peg-Style Standoff Panel-Hanging Brackets

Use four brackets to support the top and bottom edges of panels without drilling holes in them.

Screw-Grip Standoff Panel-Hanging Brackets

No need to drill holes in panels—tighten the set screw to hold them in place.

Thread Adapters for Drum Openings

Convert drum openings with metric or BSPP threads to a 2 NPT pipe size.

Threaded Adapters for Pullers

Use adapters on the ends of forcing screws and face-grip puller legs when pulling shafts, bearing caps, and pinions.