M2.5 Slotted Terminal Screws are manufactured to DIN 84 with a coarse thread pitch of the standard value. This page lists the controlling dimensions for the M2.5 size — head geometry, width across flats, matching spanner size — together with the clearance hole, tapping drill and tightening torque used at assembly.
M2.5 Dimensional Row (DIN 84)
| Thread size | Pitch (mm) | Head diameter dk (mm) | Head height k (mm) | Slot width n (mm) | Slot depth t (mm) | Common material | Common length range (mm) | Reference standard |
|---|---|---|---|---|---|---|---|---|
| M2.5 | 0.45 | 4.5 | 1.8 | 0.6 | 1.1 | Brass CW614N | 4~20 | DIN 84 |
Spanner & Drive for M2.5 Slotted Terminal Screws
Drive geometry for M2.5 Slotted Terminal Screws is given by the row above; match the tool to the listed values.
M2.5 Slotted Terminal Screws Weight
A steel M2.5 slotted terminal screws at the listed 420 mm length weighs approximately 52 g each — about 52 kg per 1,000 pieces. Stainless A2/A4 weighs roughly the same (density 7.9–8.0 g/cm³). Actual weight varies slightly with head form, thread and finish; use this figure for freight estimation only.
Common Applications for M2.5 Slotted Terminal Screws
M2.5 Slotted Terminal Screws are commonly specified for electronics, PCB hardware, optical mounts and small-scale machinery.
Installation Tips for M2.5 Slotted Terminal Screws
- At M2.5 the joint is sensitive to over-torque — use a torque-limiting driver and check the head doesn't bury into a softer counterpart.
Mating Parts for M2.5
For M2.5, pair with a M2.5 hex nut (ISO 4032 / DIN 934) and, where used, a M2.5 flat washer (ISO 7089 / DIN 125A) under the head and under the nut.
