Threadless Spacers | McMaster-Carr

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System of Measurement

Screw Size

Length

Material

Thickness

Washer Type

Finish

Chromate Conversion Coated

Chrome Plated

Corrosion-Resistant Coated

Dyed

Galvanized

Hot-Dipped Galvanized

Zinc Yellow-Chromate Plated

Drill Bit Size

Hardness

Shaft Diameter

Installation Permanence

Permanent

Removable

DFARS Specialty Metals

Compliant

Exempt

Not Compliant

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

Yes

Export Control Classification Number (ECCN)

1C998

EAR99

RoHS

Compliant

Compliant with Exemptions

REACH

Shape

For Drill Bit Size Decimal Equivalent

Performance

Electrically Insulating

Thread Size

Specifications Met

Fastener Strength Grade/Class

Drill Bushing Texture

Drill Bushing Type

9,188 Products

Fastening and Joining

Spacers

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

1,019 products

Washers

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

1,319 products

Sealing Washers

Prevent fluids from leaking around fasteners

18 products

Lock Washers

Resist vibration to prevent fasteners from loosening

865 products

Leveling Washers

Curved or tapered to compensate for uneven mounting surfaces

161 products

Finishing Washers

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

34 products

Cross-Bracing Washers

Connect cross-bracing rods or cables to structural beams; also known as hillside washers

20 products

Shims

Align and space components on shafts, or level machinery, cabinets, and doors

1,113 products

Unthreaded Inserts

Reinforce, align, and adjust joints as you tighten a fastener

49 products

Shim Stock

Cut into custom shapes to align, space, and level components on dies, presses, and machinery

221 products

Fabricating and Machining

Drill Bushings

Fit in holes to guide drill bits and other cutting tools for precise and repeatable holes and cuts

3,936 products

Drill Bushing Sleeves

Press into your jig fixture so you can swap different bushings in and out without causing wear

15 products

Slotted Bushings

Pair with a standard bushing to prevent alignment pins from binding in your fixture

34 products

Die Bushings

Guide pins and punches in molds and stamping dies or reduce friction between ejector pins and plates

102 products

Broach Shims

Slide between a keyway broach and bushing to control the keyway's depth when cutting more than once

29 products

Lathe Tool Insert Holders

Secure inserts within lathes to add cuts and grooves to workpieces

2 products

Clamp Holding Washers

Replace worn washers on open-arm toggle clamps to keep holding screws in place

7 products

Lathe Tool Insert Holder Seats

Replace the seats on your lathe tool insert holder

26 products

Power Transmission

Bearing Lock Washers

Lock bearing nuts in place to prevent loosening due to vibration

103 products

Material Handling

Tie-Down Washers

Angled sides align and hold tie-down straps

5 products