METRICfine60° flank

M12 × 1.5 fine Thread Dimensions

M12 x 1.5 (fine) is a fine pitch METRIC thread. Pitch is 1.5 mm, equivalent to 16.93 threads per inch. The recommended tap drill leaves roughly 75% thread engagement.

Nominal Ø12 mm
Pitch1.5 mm
Threads per inch16.93
Pitch Ø11.03 mm
Tap drill10.5 mm

Thread profile

millimetres unless stated
Thread profile — M12 x 1.5 (fine)d 12d2 11.03d3 10.16mm60°P 1.5h3 0.92tap ⌀10.5
M12 × 1.5 fine — basic profile60° flank angle · Not to scale
Designation
M12 x 1.5 (fine)
Thread system
METRIC
Series
fine
Flank angle
60°
Major diameter
12 mm / 0.47"
Pitch
1.5 mm
Threads per inch
16.93
Pitch diameter
11.03 mm
Minor diameter (external)
10.16 mm
Minor diameter (internal)
10.38 mm
Thread depth
0.92 mm
Recommended tap drill
Ø 10.5 mm / 0.41"

How these values are derived

Basic ISO thread geometry uses the fundamental triangle height H = 0.866025 × P. External minor diameter d₃ = d − 1.226869 × P, internal minor diameter D₁ = d − 1.082532 × P. Tap drill is given as nominal diameter minus pitch, which approximates a 75% thread engagement — adjust for tough materials or deep holes.

Fasteners using this thread136 specification pages

All M12 fasteners
DIN 912ISO 4762DIN 7991ISO 10642ISO 7380DIN 7984DIN 933ISO 4017DIN 931ISO 4014DIN 916DIN 914DIN 915DIN 913ISO 4029
SpecificationLength (mm)
DIN 912 M12 × 20 Hexagon Socket Head Cap Screw20
DIN 912 M12 × 25 Hexagon Socket Head Cap Screw25
DIN 912 M12 × 30 Hexagon Socket Head Cap Screw30
DIN 912 M12 × 35 Hexagon Socket Head Cap Screw35
DIN 912 M12 × 40 Hexagon Socket Head Cap Screw40
DIN 912 M12 × 50 Hexagon Socket Head Cap Screw50
DIN 912 M12 × 60 Hexagon Socket Head Cap Screw60
DIN 912 M12 × 80 Hexagon Socket Head Cap Screw80
DIN 912 M12 × 100 Hexagon Socket Head Cap Screw100
ISO 4762 M12 × 20 Hexagon Socket Head Cap Screw20
ISO 4762 M12 × 25 Hexagon Socket Head Cap Screw25
ISO 4762 M12 × 30 Hexagon Socket Head Cap Screw30
ISO 4762 M12 × 35 Hexagon Socket Head Cap Screw35
ISO 4762 M12 × 40 Hexagon Socket Head Cap Screw40
ISO 4762 M12 × 50 Hexagon Socket Head Cap Screw50
ISO 4762 M12 × 60 Hexagon Socket Head Cap Screw60
ISO 4762 M12 × 80 Hexagon Socket Head Cap Screw80
ISO 4762 M12 × 100 Hexagon Socket Head Cap Screw100
DIN 7991 M12 × 20 Hexagon Socket Countersunk Head Screw20
DIN 7991 M12 × 25 Hexagon Socket Countersunk Head Screw25
DIN 7991 M12 × 30 Hexagon Socket Countersunk Head Screw30
DIN 7991 M12 × 35 Hexagon Socket Countersunk Head Screw35
DIN 7991 M12 × 40 Hexagon Socket Countersunk Head Screw40
DIN 7991 M12 × 50 Hexagon Socket Countersunk Head Screw50
DIN 7991 M12 × 60 Hexagon Socket Countersunk Head Screw60
DIN 7991 M12 × 80 Hexagon Socket Countersunk Head Screw80
DIN 7991 M12 × 100 Hexagon Socket Countersunk Head Screw100
ISO 10642 M12 × 20 Hexagon Socket Countersunk Head Screw20
ISO 10642 M12 × 25 Hexagon Socket Countersunk Head Screw25
ISO 10642 M12 × 30 Hexagon Socket Countersunk Head Screw30
ISO 10642 M12 × 35 Hexagon Socket Countersunk Head Screw35
ISO 10642 M12 × 40 Hexagon Socket Countersunk Head Screw40
ISO 10642 M12 × 50 Hexagon Socket Countersunk Head Screw50
ISO 10642 M12 × 60 Hexagon Socket Countersunk Head Screw60
ISO 10642 M12 × 80 Hexagon Socket Countersunk Head Screw80
ISO 10642 M12 × 100 Hexagon Socket Countersunk Head Screw100
ISO 7380 M12 × 20 Hexagon Socket Button Head Screw20
ISO 7380 M12 × 25 Hexagon Socket Button Head Screw25
ISO 7380 M12 × 30 Hexagon Socket Button Head Screw30
ISO 7380 M12 × 35 Hexagon Socket Button Head Screw35

Showing the first 40 of 136 specification pages.