M4 Thin Square Nut (Square Thin Nut), DIN 562

Across the flats an M4 thin square nut (DIN 562) measures 7 mm, and it stands 2.2 mm tall on the M4 × 0.7 thread. It comes as simplified and threaded STEP files.

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

• Also searched as: M4 thin square nut
• Model id: din562-m4
• Standard: DIN 562:2013 · thread M4 × 0.7, ISO metric coarse, right hand

Files

Part key	Simplified	Threaded
din562-m4	STEP	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
s	Width across flats	6.64	7	7	6.82	midpoint of min–max	L1
m	Nut height	1.8	2.2	2.2	2	midpoint of min–max	L1
e	Width across corners	8.9			8.9	single limit (min), modeled at the limit	L1
P	Coarse thread pitch		0.7		0.7	nominal	L1
tap_drill	Tap drill diameter		3.3		3.3	nominal	L1
d1	Basic minor diameter		3.2422276		3.2422276	nominal	L1
ch_angle	Chamfered end angle			50	50	single limit (max), modeled at the limit	L2
dh_fine	Clearance hole, fine series		4.3		4.3	nominal	L1
dh_medium	Clearance hole, medium series		4.5		4.5	nominal	L1
dh_coarse	Clearance hole, coarse series		4.8		4.8	nominal	L1

Thread and holes

• Tap drill: 3.3 mm (method: d − P), L1, sources amesweb-tap-drill, rule-tap-drill.
• Clearance hole (ISO 273): close 4.3, normal 4.5, loose 4.8 mm (L1: fine, medium and coarse series (albany-clearance, wikipedia-de-clearance)).

Drawing

As a PDF: CC-DIN562-SZ-M4.pdf.

Goes with the M4 thin square nut

• Spanner: 7 mm, the hexagon's nominal width across flats (s) in the table above.
• ISO 4762 socket head cap screw in 10 lengths from 6 to 40 mm, the same size as this M4 thin square nut: M4 Socket Head Cap Screw (Allen Bolt), ISO 4762 / DIN 912
• ISO 4017 hex head screw in 9 lengths from 8 to 40 mm, the same size as this M4 thin square nut: M4 Hex Head Screw (Hex Bolt), ISO 4017
• ISO 7089 flat washer, the same size as this M4 thin square nut: M4 Flat Washer (Plain Washer), ISO 7089

The M4 thin square nut beside the M3 and the M5

The M4 is number 4, counting from the smallest, of the 7 DIN 562 thin square nuts published here, from M2 to M8.

• Width across flats (s): 7 mm on the M4 thin square nut, against 5.5 mm on the M3 and 8 mm on the M5.
• Nut height (m): 2.2 mm on the M4 thin square nut, against 1.8 mm on the M3 and 2.7 mm on the M5.
• Width across corners (e): at least 8.9 mm on the M4 thin square nut, against at least 7 mm on the M3 and at least 10.2 mm on the M5.
• Coarse thread pitch (P): 0.7 mm on the M4 thin square nut, against 0.5 mm on the M3 and 0.8 mm on the M5.
• Tap drill diameter (tap_drill): 3.3 mm on the M4 thin square nut, against 2.5 mm on the M3 and 4.2 mm on the M5.
• Basic minor diameter (d1): 3.2422276 mm on the M4 thin square nut, against 2.458734 mm on the M3 and 4.1339744 mm on the M5.
• Chamfered end angle (ch_angle): up to 50° on the M4 thin square nut, the same on the M3 and the M5.
• Clearance hole, fine series (dh_fine): 4.3 mm on the M4 thin square nut, against 3.2 mm on the M3 and 5.3 mm on the M5.

Other sizes

• One size smaller: M3 Thin Square Nut (Square Thin Nut), DIN 562, 5.5 mm across flats.
• One size larger: M5 Thin Square Nut (Square Thin Nut), DIN 562, 8 mm across flats.

Documents

• CC-DIN562-DS-M4.pdf: M4 datasheet: values with levels, sources
• CC-DIN562-SZ-M4.pdf: M4 drawing: this size's values on the views
• parts.json: the part record of this size (the platform contract)

Sources

albany-clearance, amesweb-tap-drill, cde-din562, fasten-it-din562, fasteners-eu-din562, iso4753-2011-sample, rule-basic-minor, rule-iso4759-1-nut-height-din562, rule-iso4759-1-nut-width-din562, rule-tap-drill, wegertseder-din562, wikipedia-de-clearance, wikipedia-iso261. Full citations: the method page and this size's datasheet.

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