M6 Chamfered Flat Washer (Chamfered Plain Washer), ISO 7090

The M6 chamfered flat washer (ISO 7090) is 1.6 mm thick, with a 6.4 mm hole and an outside diameter of 12 mm. It sits under M6 screw heads and nuts; here as simplified STEP files.

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

• Also searched as: M6 washer
• Model id: iso7090-m6
• Standard: ISO 7090:2000 · size M6

Files

Part key	Simplified
iso7090-m6	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
d1	Inside diameter	6.4	6.4	6.62	6.4	nominal	L1
d2	Outside diameter	11.57	12	12	12	nominal	L1
h	Thickness	1.4	1.6	1.8	1.6	nominal	L1
ch_angle	Chamfer angle	30		45	37.5	midpoint of min–max	L0 (min, max: one source)
ch_h	Chamfer height	0.25		0.5	0.375	midpoint of min–max	L0 (min, max: one source)

Drawing

As a PDF: CC-ISO7090-SZ-M6.pdf.

Goes with the M6 chamfered flat washer

• ISO 4762 socket head cap screw in 12 lengths from 10 to 60 mm, the same size as this M6 chamfered flat washer: M6 Socket Head Cap Screw (Allen Bolt), ISO 4762 / DIN 912
• ISO 4017 hex head screw in 11 lengths from 12 to 60 mm, the same size as this M6 chamfered flat washer: M6 Hex Head Screw (Hex Bolt), ISO 4017
• ISO 4032 hex nut, the same size as this M6 chamfered flat washer: M6 Hex Nut (Hexagon Nut), ISO 4032 / DIN 934

The M6 chamfered flat washer beside the M5 and the M8

The M6 is number 2, counting from the smallest, of the 3 ISO 7090 chamfered flat washers published here, from M5 to M8.

• Inside diameter (d1): 6.4 mm on the M6 chamfered flat washer, against 5.3 mm on the M5 and 8.4 mm on the M8.
• Outside diameter (d2): 12 mm on the M6 chamfered flat washer, against 10 mm on the M5 and 16 mm on the M8.
• Thickness (h): 1.6 mm on the M6 chamfered flat washer, against 1 mm on the M5 and 1.6 mm on the M8.
• Chamfer angle (ch_angle): 30 to 45° on the M6 chamfered flat washer, the same on the M5 and the M8.
• Chamfer height (ch_h): 0.25 to 0.5 mm on the M6 chamfered flat washer, the same on the M5 and the M8.

Other sizes

• One size smaller: M5 Chamfered Flat Washer (Chamfered Plain Washer), ISO 7090, 5.3 mm hole, 10 mm OD.
• One size larger: M8 Chamfered Flat Washer (Chamfered Plain Washer), ISO 7090, 8.4 mm hole, 16 mm OD.

Documents

• CC-ISO7090-DS-M6.pdf: M6 datasheet: values with levels, sources
• CC-ISO7090-SZ-M6.pdf: M6 drawing: this size's values on the views
• parts.json: the part record of this size (the platform contract)

Sources

fasten-it-iso7090, fasten-it-iso7090-drawing, globalfastener-iso7090, westfield-iso7090. Full citations: the method page and this size's datasheet.

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