M5 Flat Washer (Plain Washer), ISO 7089

Made for M5 screws, this flat washer (ISO 7089) has a 5.3 mm hole and is 10 mm across, 1 mm thick. Download it as simplified STEP files.

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

• Also searched as: M5 washer
• Model id: iso7089-m5
• Standard: ISO 7089:2000 · size M5

Files

Part key	Simplified
iso7089-m5	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
d1	Inside diameter	5.3	5.3	5.48	5.3	nominal	L1
d2	Outside diameter	9.64	10	10	10	nominal	L1
h	Thickness	0.9	1	1.1	1	nominal	L1

Drawing

As a PDF: CC-ISO7089-SZ-M5.pdf.

Goes with the M5 flat washer

• ISO 4762 socket head cap screw in 11 lengths from 8 to 50 mm, the same size as this M5 flat washer: M5 Socket Head Cap Screw (Allen Bolt), ISO 4762 / DIN 912
• ISO 4017 hex head screw in 10 lengths from 10 to 50 mm, the same size as this M5 flat washer: M5 Hex Head Screw (Hex Bolt), ISO 4017
• ISO 4032 hex nut, the same size as this M5 flat washer: M5 Hex Nut (Hexagon Nut), ISO 4032 / DIN 934

Approximate mass

Approximate mass of 1000 washers, from fasten.it's DIN EN ISO 7089 table (fasten-it-iso7089), column “weight in Kg x 1000 pcs (ρ=7,85 kg/dm3)”.

• mass per 1000: 0.443 kg

The M5 flat washer beside the M4 and the M6

The M5 is number 5, counting from the smallest, of the 7 ISO 7089 flat washers published here, from M2 to M8.

• Inside diameter (d1): 5.3 mm on the M5 flat washer, against 4.3 mm on the M4 and 6.4 mm on the M6.
• Outside diameter (d2): 10 mm on the M5 flat washer, against 9 mm on the M4 and 12 mm on the M6.
• Thickness (h): 1 mm on the M5 flat washer, against 0.8 mm on the M4 and 1.6 mm on the M6.

Other sizes

• One size smaller: M4 Flat Washer (Plain Washer), ISO 7089, 4.3 mm hole, 9 mm OD.
• One size larger: M6 Flat Washer (Plain Washer), ISO 7089, 6.4 mm hole, 12 mm OD.

Documents

• CC-ISO7089-DS-M5.pdf: M5 datasheet: values with levels, sources
• CC-ISO7089-SZ-M5.pdf: M5 drawing: this size's values on the views
• parts.json: the part record of this size (the platform contract)

Sources

amesweb-iso7089, fasten-it-iso7089, westfield-iso7089. Full citations: the method page and this size's datasheet.

Found an error? Use the feedback section on this page.