METRICcoarse60° flank

M48 × 5 Thread Dimensions

M48 x 5 is a coarse pitch METRIC thread. Pitch is 5 mm, equivalent to 5.08 threads per inch. The recommended tap drill leaves roughly 75% thread engagement.

Nominal Ø48 mm
Pitch5 mm
Threads per inch5.08
Pitch Ø44.75 mm
Tap drill43 mm

Thread profile

millimetres unless stated
Thread profile — M48 x 5d 48d2 44.75d3 41.87mm60°P 5h3 3.07tap ⌀43
M48 × 5 — basic profile60° flank angle · Not to scale
Designation
M48 x 5
Thread system
METRIC
Series
coarse
Flank angle
60°
Major diameter
48 mm / 1.89"
Pitch
5 mm
Threads per inch
5.08
Pitch diameter
44.75 mm
Minor diameter (external)
41.87 mm
Minor diameter (internal)
42.59 mm
Thread depth
3.07 mm
Recommended tap drill
Ø 43 mm / 1.69"

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.