DIN 127Spring lock washer

DIN 127 M16 Spring lock washer

DIN 127 M16 is a spring lock washer, on a M16 × 1.5 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 M16d2 16⌀16.2h 7
DIN 127 M16 — Spring lock washerNominal dimensions in mm · Not to scale
Diameter16 mm
Pitch1.5 mm
Socket size s3.5 mm
Inside Ø d116.2 mm
Thickness h7 mm

Dimensions

Standard
DIN 127
Type
Spring lock washer
Size
M16
Thread
M16 × 1.5
Socket size s
3.5 mm
Total height h
7 mm
Inside diameter d1
16.2 mm

Nominal values in millimetres as published in DIN 127.

Thread data

Full M16 thread page
DesignationM16 × 1.5 fine
Pitch1.5 mm
Major Ø16 mm
Pitch Ø15.03 mm
Minor Ø ext14.16 mm
Tap drillØ 14.5 mm

Other lengthsDIN 127 M16

All M16 specifications
M16