2 mm Split Pin (Cotter Pin), ISO 1234

All 12 lengths from 10 to 40 mm, each as simplified STEP: one 2 mm split pin (ISO 1234).

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

• Also searched as: 2 mm split pin, 2 mm x 10 to 2 mm x 40 split pins
• Model id: iso1234-d2
• Standard: ISO 1234:1997 · size 2 mm

Lengths

Length (mm)	Part key	Simplified
10	iso1234-d2x10	STEP
12	iso1234-d2x12	STEP
14	iso1234-d2x14	STEP
16	iso1234-d2x16	STEP
18	iso1234-d2x18	STEP
20	iso1234-d2x20	STEP
22	iso1234-d2x22	STEP
25	iso1234-d2x25	STEP
28	iso1234-d2x28	STEP
32	iso1234-d2x32	STEP
36	iso1234-d2x36	STEP
40	iso1234-d2x40	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
d	Pin diameter	1.7		1.8	1.75	midpoint of min–max	L2
a	Extended prong	1.25		2.5	1.875	midpoint of min–max	L2
b	Eye length		4 ref		4	reference value	L2
c	Eye width	3.2		3.6	3.4	midpoint of min–max	L2

Drawing

As a PDF: CC-ISO1234-SZ-2.pdf.

The 2 mm split pin beside the 1.6 mm

The 2 mm is the largest of the 6 ISO 1234 split pins published here, from 0.6 mm to 2 mm.

• Pin diameter (d): 1.7 to 1.8 mm on the 2 mm split pin, against 1.3 to 1.4 mm on the 1.6 mm.
• Extended prong (a): 1.25 to 2.5 mm on the 2 mm split pin, the same on the 1.6 mm.
• Eye length (b): 4 mm (reference) on the 2 mm split pin, against 3.2 mm (reference) on the 1.6 mm.
• Eye width (c): 3.2 to 3.6 mm on the 2 mm split pin, against 2.4 to 2.8 mm on the 1.6 mm.

Other sizes

• One size smaller: 1.6 mm Split Pin (Cotter Pin), ISO 1234.

Documents

• CC-ISO1234-DS-2.pdf: 2 datasheet: values with levels, lengths, sources
• CC-ISO1234-SZ-2.pdf: 2 drawing: this size's values on the views
• parts.json: the part record of every length (the platform contract)

Sources

amesweb-iso1234, fasten-it-iso1234, fasteners-eu-iso1234, iso1234-1997-sample. Full citations: the method page and this size's datasheet.

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