4 mm Dowel Pin (Parallel Pin), ISO 2338

A 4 mm dowel pin (ISO 2338). Here in 15 lengths from 8 to 40 mm, each as simplified STEP.

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

• Also searched as: 4 mm pin, 4 mm x 8 to 4 mm x 40 pins
• Model id: iso2338-d4
• Standard: ISO 2338:1997 · size 4 mm

Lengths

Length (mm)	Part key	Simplified
8	iso2338-d4x8	STEP
10	iso2338-d4x10	STEP
12	iso2338-d4x12	STEP
14	iso2338-d4x14	STEP
16	iso2338-d4x16	STEP
18	iso2338-d4x18	STEP
20	iso2338-d4x20	STEP
22	iso2338-d4x22	STEP
24	iso2338-d4x24	STEP
26	iso2338-d4x26	STEP
28	iso2338-d4x28	STEP
30	iso2338-d4x30	STEP
32	iso2338-d4x32	STEP
35	iso2338-d4x35	STEP
40	iso2338-d4x40	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
d	Diameter, nominal		4		4	nominal	L2
c	End chamfer length		0.63 ref		0.63	reference value	L2
ch_angle	End chamfer angle		15 ref		15	reference value	L2

Drawing

As a PDF: CC-ISO2338-SZ-4.pdf.

The 4 mm dowel pin beside the 3 mm and the 5 mm

The 4 mm is number 4, counting from the smallest, of the 7 ISO 2338 dowel pins published here, from 2 mm to 8 mm.

• Diameter, nominal (d): 4 mm on the 4 mm dowel pin, against 3 mm on the 3 mm and 5 mm on the 5 mm.
• End chamfer length (c): 0.63 mm (reference) on the 4 mm dowel pin, against 0.5 mm (reference) on the 3 mm and 0.8 mm (reference) on the 5 mm.
• End chamfer angle (ch_angle): 15° (reference) on the 4 mm dowel pin, the same on the 3 mm and the 5 mm.

Other sizes

• One size smaller: 3 mm Dowel Pin (Parallel Pin), ISO 2338.
• One size larger: 5 mm Dowel Pin (Parallel Pin), ISO 2338.

Documents

• CC-ISO2338-DS-4.pdf: 4 datasheet: values with levels, lengths, sources
• CC-ISO2338-SZ-4.pdf: 4 drawing: this size's values on the views
• parts.json: the part record of every length (the platform contract)

Sources

boltport-iso2338, fasten-it-iso2338, iso2338-1997-sample, iso2338-1997-sample-text, kipp-k2013, mechcodex-dowel-pins-metric, opac-iso2338. Full citations: the method page and this size's datasheet.

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