(M3.5) Hexalobular Socket Oval Countersunk Head Screws are manufactured to ISO 14584 with a coarse thread pitch of the standard value. This page lists the controlling dimensions for the (M3.5) size — head geometry, width across flats, matching spanner size — together with the clearance hole, tapping drill and tightening torque used at assembly.
(M3.5) Dimensional Row (ISO 14584)
| Size | Pitch P (mm) | b (mm) | Head diameter dk (mm) | csh_diam (mm) | f (mm) | csh_height (mm) | r (mm) | rf (mm) | x (mm) | tt (mm) | A (mm) | t_mean (mm) | Length range l (mm) | Reference standard |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (M3.5) | 0.6 | 38.0 | 8.2 | 7.3 | 0.8 | 2.35 | 0.4 | 8.5 | 1.5 | T15 | 3.35 | 1.3 | 5~35 | ISO 14584 |
Spanner & Drive for (M3.5) Hexalobular Socket Oval Countersunk Head Screws
Drive geometry for (M3.5) Hexalobular Socket Oval Countersunk Head Screws is given by the row above; match the tool to the listed values.
(M3.5) Hexalobular Socket Oval Countersunk Head Screws Weight
A steel (M3.5) hexalobular socket oval countersunk head screws at the listed 535 mm length weighs approximately 222 g each — about 222 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.
Installation Tips for (M3.5) Hexalobular Socket Oval Countersunk Head Screws
- At (M3.5) 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 (M3.5)
For (M3.5), pair with a (M3.5) hex nut (ISO 4032 / DIN 934) and, where used, a (M3.5) flat washer (ISO 7089 / DIN 125A) under the head and under the nut.
Custom manufacturing · Made to drawing
Need hexalobular socket oval countersunk head screws in a size this table does not list?
This page covers (M3.5) hexalobular socket oval countersunk head screws. Head form and drive can be specified to the assembly rather than to a standard: a larger bearing face, a security drive, or a socket sized for the tool already on the bench. Made by cold heading or warm forging.
Minimum order from 2,000 pieces; samples within 7 days of drawing approval.

