1/4"-16 Spacers | McMaster-Carr

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Construction

One Piece

Two Piece

System of Measurement

Component

Shaft Type

Clamping Screw Thread Size

Width

Material

Number of Clamping Screws Included

Thread Direction

Right Hand

Thread Type

Acme

Clamping Screw Length

5/16"

Shaft Mount Type

Clamp On

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

DFARS Specialty Metals

Not Compliant

Export Control Classification Number (ECCN)

Performance

REACH

RoHS

Hardness

Clamping Screw Finish

Black Oxide

Clamping Screw Material

Finish

3 Products

Clamping Acme Lead Screw Collars

Thread these one-piece collars onto an Acme lead screw to separate and position components, or use them as an end stop to limit travel. Tighten the clamping screw to secure.

To ensure compatibility, please select a collar that has the same thread type, direction, size, and number of thread starts as your lead screw.

Black-Oxide 1215 Carbon Steel—Black-oxide carbon steel collars have mild corrosion resistance.

303 Stainless Steel—303 stainless steel collars have good corrosion resistance.

	No. of Thread Starts	Hardness		Each
Right-Hand Thread







	Black-Oxide 1215 Carbon Steel

	1/4"-16	5/8"	9/32"	1	Brinell 167	6698K51	000000




			303 Stainless Steel

			1/4"-16	5/8"	9/32"	1	Brinell 228	2228N21	00000

Two-Piece Clamping Acme Lead Screw Collars

Mount these two-piece collars anywhere on an Acme lead screw without removing components. Use them to separate and position components or as an end stop to limit travel. Tighten the clamping screw to secure.

To ensure compatibility, please select a collar that has the same thread type, direction, size, and number of thread starts as your lead screw.

Black-Oxide 1215 Carbon Steel—Black-oxide carbon steel collars have mild corrosion resistance.

	No. of Thread Starts	Hardness		Each
Right-Hand Thread







	Black-Oxide 1215 Carbon Steel

	1/4"-16	5/8"	9/32"	1	Brinell 167	2207N11	000000