4.5 mm Spring Pin (Roll Pin), ISO 8752

All 18 lengths from 5 to 50 mm, each as simplified STEP: one 4.5 mm spring pin (ISO 8752) with a 1 mm wall and 4.9 to 5.1 mm across before it is fitted.

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

• Also searched as: 4.5 mm pin, 4.5 mm x 5 to 4.5 mm x 50 pins
• Model id: iso8752-d4-5
• Standard: ISO 8752:2009 · size 4.5 mm

Lengths

Length (mm)	Part key	Simplified
5	iso8752-d4-5x5	STEP
6	iso8752-d4-5x6	STEP
8	iso8752-d4-5x8	STEP
10	iso8752-d4-5x10	STEP
12	iso8752-d4-5x12	STEP
14	iso8752-d4-5x14	STEP
16	iso8752-d4-5x16	STEP
18	iso8752-d4-5x18	STEP
20	iso8752-d4-5x20	STEP
22	iso8752-d4-5x22	STEP
24	iso8752-d4-5x24	STEP
26	iso8752-d4-5x26	STEP
28	iso8752-d4-5x28	STEP
30	iso8752-d4-5x30	STEP
32	iso8752-d4-5x32	STEP
40	iso8752-d4-5x40	STEP
45	iso8752-d4-5x45	STEP
50	iso8752-d4-5x50	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
d	Diameter, nominal		4.5		4.5	nominal	L1
d1	Outside diameter before mounting	4.9		5.1	5	midpoint of min–max	L1
d2	Inside diameter before mounting		2.9 ref		2.9	reference value	L1
a	End chamfer length	0.8		1	0.9	midpoint of min–max	L1
s	Wall thickness		1		1	nominal	L1
w	Slot width		1.885		1.885	nominal	L0 (nom: one source)
shear	Minimum double shear strength	15.36			15.36	single limit (min), modeled at the limit	L1

Drawing

As a PDF: CC-ISO8752-SZ-4.5.pdf.

The 4.5 mm spring pin beside the 4 mm and the 5 mm

The 4.5 mm is number 6, counting from the smallest, of the 9 ISO 8752 spring pins published here, from 2 mm to 8 mm.

• Diameter, nominal (d): 4.5 mm on the 4.5 mm spring pin, against 4 mm on the 4 mm and 5 mm on the 5 mm.
• Outside diameter before mounting (d1): 4.9 to 5.1 mm on the 4.5 mm spring pin, against 4.4 to 4.6 mm on the 4 mm and 5.4 to 5.6 mm on the 5 mm.
• Inside diameter before mounting (d2): 2.9 mm (reference) on the 4.5 mm spring pin, against 2.8 mm (reference) on the 4 mm and 3.4 mm (reference) on the 5 mm.
• End chamfer length (a): 0.8 to 1 mm on the 4.5 mm spring pin, against 0.65 to 0.85 mm on the 4 mm and 0.9 to 1.1 mm on the 5 mm.
• Wall thickness (s): 1 mm on the 4.5 mm spring pin, against 0.8 mm on the 4 mm and 1 mm on the 5 mm.
• Slot width (w): 1.885 mm on the 4.5 mm spring pin, the same on the 4 mm and the 5 mm.
• Minimum double shear strength (shear): at least 15.36 mm on the 4.5 mm spring pin, against at least 11.24 mm on the 4 mm and at least 17.54 mm on the 5 mm.

Other sizes

• One size smaller: 4 mm Spring Pin (Roll Pin), ISO 8752.
• One size larger: 5 mm Spring Pin (Roll Pin), ISO 8752.

Documents

• CC-ISO8752-DS-4.5.pdf: 4.5 datasheet: values with levels, lengths, sources
• CC-ISO8752-SZ-4.5.pdf: 4.5 drawing: this size's values on the views
• parts.json: the part record of every length (the platform contract)

Sources

fasten-it-iso8752, fasteners-eu-iso8752, fuller-iso8752, iso8752-2009-sample, rule-iso8752-slot. Full citations: the method page and this size's datasheet.

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