12x18 Shim Washer (Shim Ring), DIN 988

Made for 12x18 screws, this shim washer (DIN 988) has a 12 mm hole and is 18 mm across. Download it as 7 lengths from 0.1 to 1.5 mm, each as simplified STEP.

How these parts are made, and what the levels mean: read the method

• Also searched as: 12x18 shim ring, 12x18 x 0.1 to 12x18 x 1.5 shim rings
• Model id: din988-12x18
• Standard: DIN 988:1990-03 · size 12x18

Lengths

Length (mm)	Part key	Simplified
0.1	din988-12x18x0-1	STEP
0.2	din988-12x18x0-2	STEP
0.3	din988-12x18x0-3	STEP
0.5	din988-12x18x0-5	STEP
1	din988-12x18x1	STEP
1.2	din988-12x18x1-2	STEP
1.5	din988-12x18x1-5	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
d1	Inside diameter		12		12	nominal	L1
d2	Outside diameter		18		18	nominal	L1

Drawing

As a PDF: CC-DIN988-SZ-12x18.pdf.

The 12x18 shim washer beside the 11x17 and the 13x19

The 12x18 is number 10 of the 18 DIN 988 shim washers published here, listed from 3x6 to 20x28.

• Inside diameter (d1): 12 mm on the 12x18 shim washer, against 11 mm on the 11x17 and 13 mm on the 13x19.
• Outside diameter (d2): 18 mm on the 12x18 shim washer, against 17 mm on the 11x17 and 19 mm on the 13x19.

Other sizes

• One size smaller: 11x17 Shim Washer (Shim Ring), DIN 988, 11 mm hole, 17 mm OD.
• One size larger: 13x19 Shim Washer (Shim Ring), DIN 988, 13 mm hole, 19 mm OD.

Documents

• CC-DIN988-DS-12x18.pdf: 12x18 datasheet: values with levels, lengths, sources
• CC-DIN988-SZ-12x18.pdf: 12x18 drawing: this size's values on the views
• parts.json: the part record of every length (the platform contract)

Sources

fasten-it-din988, fasteners-eu-din988, schrauben-lexikon-din988. Full citations: the method page and this size's datasheet.

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