M24 is one of the standard coarse-thread sizes for spring lock washer (gb/t 93) under GB/T 93 / DIN 127B. The sections below reproduce the dimensional row, list the matching tools and hole sizes, and summarize where this size is normally specified.
M24 Dimensional Row (GB/T 93 / DIN 127B)
| For bolt size | Inner diameter d1 (mm) | Outer diameter d2 (mm) | Width b (mm) | Thickness t (mm) | Reference standard |
|---|---|---|---|---|---|
| M24 | 24.5 | 40.1 | 6.5 | 6.0 | GB/T 93 / DIN 127B |
Spanner & Drive for M24 Spring Lock Washer (GB/T 93) — GB/T 93 / DIN 127B (Series 081)
Drive geometry for M24 Spring Lock Washer (GB/T 93) — GB/T 93 / DIN 127B (Series 081) is given by the row above; match the tool to the listed values.
Common Applications for M24 Spring Lock Washer (GB/T 93) — GB/T 93 / DIN 127B (Series 081)
M24 Spring Lock Washer (GB/T 93) — GB/T 93 / DIN 127B (Series 081) are commonly specified for high-load load-spreading on structural joints.
Installation Tips for M24 Spring Lock Washer (GB/T 93) — GB/T 93 / DIN 127B (Series 081)
- At M24 the stretch in the bolt becomes the controlling factor — for critical joints, use angle-controlled or stretch-controlled tightening instead of pure torque.
Mating Parts for M24
A M24 flat washer pairs with a M24 bolt/screw and matching M24 nut.

