M2.5 Threaded Rod (All Thread Rod), DIN 976-1

M2.5 threaded rod (DIN 976-1), threaded M2.5 × 0.45 along its whole length, in a 1000 mm piece. Download it as simplified STEP.

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

• Also searched as: M2.5 rod, M2.5 x 1000 rods
• Model id: din975-976-a-m2-5
• Standard: DIN 976-1:2016 · thread M2.5 × 0.45, ISO metric coarse, right hand

Lengths

Length (mm)	Part key	Simplified
1000	din975-976-a-m2-5x1000	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
l	Rod length		1000		1000	nominal	L1
mass	Mass per 1000 rods		30		30	nominal	L1
P	Coarse thread pitch		0.45		0.45	nominal	L1
tap_drill	Tap drill diameter		2.05		2.05	nominal	L1
d1	Basic minor diameter		2.0128606		2.0128606	nominal	L1
ch_angle	Chamfered end angle			50	50	single limit (max), modeled at the limit	L2
dh_fine	Clearance hole, fine series		2.7		2.7	nominal	L1
dh_medium	Clearance hole, medium series		2.9		2.9	nominal	L1
dh_coarse	Clearance hole, coarse series		3.1		3.1	nominal	L1

Thread and holes

• Tap drill: 2.05 mm (method: d − P), L1, sources amesweb-tap-drill, rule-tap-drill.
• Clearance hole (ISO 273): close 2.7, normal 2.9, loose 3.1 mm (L1: fine, medium and coarse series (albany-clearance, wikipedia-de-clearance)).

Drawing

As a PDF: CC-DIN976-1-SZ-M2.5.pdf.

The M2.5 threaded rod beside the M2 and the M3

The M2.5 is number 2, counting from the smallest, of the 7 DIN 976-1 threaded rods published here, from M2 to M8.

• Rod length (l): 1000 mm on the M2.5 threaded rod, the same on the M2 and the M3.
• Coarse thread pitch (P): 0.45 mm on the M2.5 threaded rod, against 0.4 mm on the M2 and 0.5 mm on the M3.
• Tap drill diameter (tap_drill): 2.05 mm on the M2.5 threaded rod, against 1.6 mm on the M2 and 2.5 mm on the M3.
• Basic minor diameter (d1): 2.0128606 mm on the M2.5 threaded rod, against 1.5669872 mm on the M2 and 2.458734 mm on the M3.
• Chamfered end angle (ch_angle): up to 50° on the M2.5 threaded rod, the same on the M2 and the M3.
• Clearance hole, fine series (dh_fine): 2.7 mm on the M2.5 threaded rod, against 2.2 mm on the M2 and 3.2 mm on the M3.
• Clearance hole, medium series (dh_medium): 2.9 mm on the M2.5 threaded rod, against 2.4 mm on the M2 and 3.4 mm on the M3.
• Clearance hole, coarse series (dh_coarse): 3.1 mm on the M2.5 threaded rod, against 2.6 mm on the M2 and 3.6 mm on the M3.

Other sizes

• One size smaller: M2 Threaded Rod (All Thread Rod), DIN 976-1, 1000 mm long.
• One size larger: M3 Threaded Rod (All Thread Rod), DIN 976-1, 1000 mm long.

Documents

• CC-DIN976-1-DS-M2.5.pdf: M2.5 datasheet: values with levels, lengths, sources
• CC-DIN976-1-SZ-M2.5.pdf: M2.5 drawing: this size's values on the views
• parts.json: the part record of every length (the platform contract)

Sources

albany-clearance, amesweb-tap-drill, fasten-it-din975, fasteners-eu-din975, iso4753-2011-sample, rule-basic-minor, rule-tap-drill, wikipedia-de-clearance, wikipedia-iso261. Full citations: the method page and this size's datasheet.

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