15x21 Shim Washer (Shim Ring), DIN 988

Made for 15x21 screws, this shim washer (DIN 988) has a 15 mm hole and is 21 mm across. Download it as 8 lengths from 0.1 to 2 mm, each as simplified STEP.

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

• Also searched as: 15x21 shim ring, 15x21 x 0.1 to 15x21 x 2 shim rings
• Model id: din988-15x21
• Standard: DIN 988:1990-03 · size 15x21

Lengths

Length (mm)	Part key	Simplified
0.1	din988-15x21x0-1	STEP
0.15	din988-15x21x0-15	STEP
0.2	din988-15x21x0-2	STEP
0.3	din988-15x21x0-3	STEP
0.5	din988-15x21x0-5	STEP
1	din988-15x21x1	STEP
1.5	din988-15x21x1-5	STEP
2	din988-15x21x2	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
d1	Inside diameter		15		15	nominal	L1
d2	Outside diameter		21		21	nominal	L1

Drawing

As a PDF: CC-DIN988-SZ-15x21.pdf.

The 15x21 shim washer beside the 14x20 and the 16x22

The 15x21 is number 13 of the 18 DIN 988 shim washers published here, listed from 3x6 to 20x28.

• Inside diameter (d1): 15 mm on the 15x21 shim washer, against 14 mm on the 14x20 and 16 mm on the 16x22.
• Outside diameter (d2): 21 mm on the 15x21 shim washer, against 20 mm on the 14x20 and 22 mm on the 16x22.

Other sizes

• One size smaller: 14x20 Shim Washer (Shim Ring), DIN 988, 14 mm hole, 20 mm OD.
• One size larger: 16x22 Shim Washer (Shim Ring), DIN 988, 16 mm hole, 22 mm OD.

Documents

• CC-DIN988-DS-15x21.pdf: 15x21 datasheet: values with levels, lengths, sources
• CC-DIN988-SZ-15x21.pdf: 15x21 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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