0.25 mm Shims | McMaster-Carr

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

REACH Compliant

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

RoHS Compliant

	Shim Stock Form Shim Stock Form

	Roll

	Temper Rating Temper Rating

Full Hard

	Trade Size Trade Size

	Certification Certification

	Material Certificate with Traceable Lot Number and Test Report

	Specifications Met Specifications Met

ASTM

Fed. Spec.

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12 Products

Slotted Shims

The slot lets you insert, remove, and adjust the shims without disassembling your machinery, while the tab keeps fingers and tools away from machine feet. Use an insertion tool (sold separately) for better leverage and reach. Shims are etched with the thickness.

18-8 stainless steel shims have a balance of strength and corrosion resistance.

For technical drawings and 3-D models, click on a part number.

18-8 Stainless Steel—Metric

Slotted Shims
				Slot							Insertion Tools
Thick., mm	Thick. Tolerance, mm	Lg., mm	Wd., mm	Wd., mm	Dp., mm	For Max. Screw Size	Min. Hardness	Magnetic Properties		Each		Each
Trade Size A
0.25	-0.02 to 0.02	50	50	15.9	25.4	M15	Rockwell C40	May Be Mildly Magnetic	00000000	00000	000000000	00000
Trade Size B
0.25	-0.02 to 0.02	75	75	22.3	38.1	M22	Rockwell C40	May Be Mildly Magnetic	00000000	0000	00000000	0000
Trade Size C
0.25	-0.02 to 0.02	100	100	31.8	50.8	M31	Rockwell C40	May Be Mildly Magnetic	00000000	0000	00000000	0000
Trade Size D
0.25	-0.02 to 0.02	125	125	41.3	84.1	M41	Rockwell C40	May Be Mildly Magnetic	00000000	00000	000000	00

Multi-Slotted Shims

Two Slots

Three Slots

Four Slots

Five Slots

Use a single shim on feet or positioning arms that are secured with multiple fasteners. The slots let you insert, remove, and adjust the shims without disassembling your machinery. Shims are made of steel for good strength. Also known as finger shims.

For technical drawings and 3-D models, click on a part number.

			Slot
No. of Slots	Lg., mm	Wd., mm	Wd., mm	Dp., mm	For Max. Screw Size	Material	Min. Hardness	Magnetic Properties	Thick., mm	Pkg. Qty.		Pkg.
2	25	34	10.5	17.8	M10	1008-1010 Carbon Steel	Not Rated	Magnetic	0.25	10	000000	000000
3	25	48	10.5	17.8	M10	1008-1010 Carbon Steel	Not Rated	Magnetic	0.25	10	000000	0000
4	25	63	10.5	17.8	M10	1008-1010 Carbon Steel	Not Rated	Magnetic	0.25	10	000000	0000
5	25	78	10.5	17.8	M10	1008-1010 Carbon Steel	Not Rated	Magnetic	0.25	10	000000	0000

Shim Stock

Cut it into custom shapes to fit your application.

For accurate leveling, choose materials such as steel or stainless steel, which are hard enough to resist scratching and deforming. Softer shims, like copper or aluminum, can be used as wear plates between components that rub together, preventing damage to equipment. Metal shims include a material certificate with traceable lot number and test report.

Stainless steel shim stock is more corrosion resistant than steel shim stock.

Carbon steel shim stock has excellent strength and can be welded, but isn't as corrosion resistant as other shims.

For technical drawings and 3-D models, click on a part number.

18-8 Stainless Steel Rolls

150mm Wd. × 1,250mm Lg.
Thick.	Thick. Tolerance	Min. Hardness	Temper Rating	Certification	Specifications Met		Each
0.25mm	-0.0125mm to 0.0125mm	Rockwell C40	Full Hard	Material Certificate with Traceable Lot Number and Test Report	ASTM A666	00000000	000000

1008-1010 Carbon Steel Rolls

150mm Wd. × 2,500mm Lg.
Thick.	Thick. Tolerance	Min. Hardness	Temper Rating	Certification	Specifications Met		Each
0.25mm	-0.0125mm to 0.0125mm	Rockwell B90	Full Hard	Material Certificate with Traceable Lot Number and Test Report	ASTM A109, Fed. Spec. QQ-S-698	00000000	000000