DIN 127Spring lock washer

DIN 127 M10 Spring lock washer

DIN 127 M10 is a spring lock washer, on a M10 × 1.25 mm metric thread. A split helical spring washer intended to resist loosening. Worth knowing that independent testing has repeatedly found its locking effect is marginal once the joint is properly preloaded — for safety critical joints use a prevailing torque nut instead.

Dimensioned drawing — DIN 127 M10d2 16⌀10.2h 4.4
DIN 127 M10 — Spring lock washerNominal dimensions in mm · Not to scale
Diameter10 mm
Pitch1.25 mm
Socket size s2.2 mm
Inside Ø d110.2 mm
Thickness h4.4 mm

Dimensions

Standard
DIN 127
Type
Spring lock washer
Size
M10
Thread
M10 × 1.25
Socket size s
2.2 mm
Total height h
4.4 mm
Inside diameter d1
10.2 mm

Nominal values in millimetres as published in DIN 127.

Thread data

Full M10 thread page
DesignationM10 × 1.25 fine
Pitch1.25 mm
Major Ø10 mm
Pitch Ø9.19 mm
Minor Ø ext8.47 mm
Tap drillØ 8.75 mm

Other lengthsDIN 127 M10

All M10 specifications
M10