DIN 127Spring lock washer

DIN 127 M6 Spring lock washer

DIN 127 M6 is a spring lock washer, on a M6 × 1 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 M6d2 16⌀6.1h 3.2
DIN 127 M6 — Spring lock washerNominal dimensions in mm · Not to scale
Diameter6 mm
Pitch1 mm
Socket size s1.6 mm
Inside Ø d16.1 mm
Thickness h3.2 mm

Dimensions

Standard
DIN 127
Type
Spring lock washer
Size
M6
Thread
M6 × 1
Socket size s
1.6 mm
Total height h
3.2 mm
Inside diameter d1
6.1 mm

Nominal values in millimetres as published in DIN 127.

Thread data

Full M6 thread page
DesignationM6 × 1
Pitch1 mm
Major Ø6 mm
Pitch Ø5.35 mm
Minor Ø ext4.77 mm
Tap drillØ 5 mm

Other lengthsDIN 127 M6

All M6 specifications
M6