18x25 Shim Washer (Shim Ring), DIN 988

Made for 18x25 screws, this shim washer (DIN 988) has an 18 mm hole and is 25 mm across. Download it as 6 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: 18x25 shim ring, 18x25 x 0.1 to 18x25 x 1.5 shim rings
• Model id: din988-18x25
• Standard: DIN 988:1990-03 · size 18x25

Lengths

Length (mm)	Part key	Simplified
0.1	din988-18x25x0-1	STEP
0.2	din988-18x25x0-2	STEP
0.3	din988-18x25x0-3	STEP
0.5	din988-18x25x0-5	STEP
1	din988-18x25x1	STEP
1.5	din988-18x25x1-5	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
d1	Inside diameter		18		18	nominal	L1
d2	Outside diameter		25		25	nominal	L1

Drawing

As a PDF: CC-DIN988-SZ-18x25.pdf.

The 18x25 shim washer beside the 17x24 and the 19x26

The 18x25 is number 16 of the 18 DIN 988 shim washers published here, listed from 3x6 to 20x28.

• Inside diameter (d1): 18 mm on the 18x25 shim washer, against 17 mm on the 17x24 and 19 mm on the 19x26.
• Outside diameter (d2): 25 mm on the 18x25 shim washer, against 24 mm on the 17x24 and 26 mm on the 19x26.

Other sizes

• One size smaller: 17x24 Shim Washer (Shim Ring), DIN 988, 17 mm hole, 24 mm OD.
• One size larger: 19x26 Shim Washer (Shim Ring), DIN 988, 19 mm hole, 26 mm OD.

Documents

• CC-DIN988-DS-18x25.pdf: 18x25 datasheet: values with levels, lengths, sources
• CC-DIN988-SZ-18x25.pdf: 18x25 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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