M5 Large Flat Washer (Fender Washer), DIN 9021

The M5 large flat washer (DIN 9021) is 1.2 mm thick, with a 5.3 mm hole and an outside diameter of 15 mm. It sits under M5 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: M5 washer
• Model id: din9021-m5
• Standard: DIN 9021:1990 · size M5

Files

Part key	Simplified
din9021-m5	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
d1	Inside diameter		5.3	5.48	5.3	nominal	L1
d2	Outside diameter	14.57	15		15	nominal	L1
h	Thickness	1	1.2	1.4	1.2	nominal	L1

Drawing

As a PDF: CC-DIN9021-SZ-M5.pdf.

Goes with the M5 large flat washer

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

The M5 large flat washer beside the M4 and the M6

The M5 is number 4, counting from the smallest, of the 6 DIN 9021 large flat washers published here, from M2.5 to M8.

• Inside diameter (d1): 5.3 mm on the M5 large flat washer, against 4.3 mm on the M4 and 6.4 mm on the M6.
• Outside diameter (d2): 15 mm on the M5 large flat washer, against 12 mm on the M4 and 18 mm on the M6.
• Thickness (h): 1.2 mm on the M5 large flat washer, against 1 mm on the M4 and 1.6 mm on the M6.

Other sizes

• One size smaller: M4 Large Flat Washer (Fender Washer), DIN 9021, 4.3 mm hole, 12 mm OD.
• One size larger: M6 Large Flat Washer (Fender Washer), DIN 9021, 6.4 mm hole, 18 mm OD.

Documents

• CC-DIN9021-DS-M5.pdf: M5 datasheet: values with levels, sources
• CC-DIN9021-SZ-M5.pdf: M5 drawing: this size's values on the views
• parts.json: the part record of this size (the platform contract)

Sources

fasten-it-din9021, fasteners-eu-din9021, jcfasteners-din9021. Full citations: the method page and this size's datasheet.

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