M12 Slotted Set Screws with Cone Point (ISO 7434) are specified by thread size, length and head dimensions. The M12 row from the standard is reproduced below, followed by the drill sizes, spanner size and torque values used when installing this size.
M12 Dimensional Row (ISO 7434)
| Size | dt_max (mm) | n_nom (mm) | n_min (mm) | n_max (mm) | t_nom_min (mm) | t_max (mm) | Length range l (mm) | Reference standard |
|---|---|---|---|---|---|---|---|---|
| M12 | 3 | 2 | 2.06 | 2.31 | 2.8 | 3.6 | 14~60 | ISO 7434 |
Spanner & Drive for M12 Slotted Set Screws with Cone Point
The hex socket for M12 Slotted Set Screws with Cone Point is shown in the spec table — use the matching Allen / hex key (an ISO 2936 hex key set covers the full range). Ball-end keys are for reaching the screw, not for tightening it — finish on the plain end, and on production work use a torque-controlled driver.
Hole Sizes for M12
| Coarse-thread pitch (ISO 724) | 1.75 mm |
|---|---|
| Through-hole / clearance (ISO 273 medium) | 13.5 mm |
| Tapping drill, coarse thread | 10.25 mm |
Tightening Torque for M12
| Class 8.8 (dry, ~µ 0.125) | ≈ 84 Nm |
|---|---|
| Class 10.9 (dry, ~µ 0.125) | ≈ 124 Nm |
| Class 12.9 (dry, ~µ 0.125) | ≈ 145 Nm |
Indicative dry-joint values. Lubrication can lower the required torque by 15–25%. Always confirm against the joint design, especially when going up a strength class.
Proof Load & Strength for M12
Set screws are rated to ISO 898-5 by hardness, because they work in compression against a shaft rather than in tension. ISO 898-1 excludes them, and a set screw has no head to preload against, so neither a property class nor a preload torque applies. Seating torque depends on the point form and the shaft material.
M12 Slotted Set Screws with Cone Point Weight
A steel M12 slotted set screws with cone point at the listed 1,460 mm length weighs approximately 1,296 g each — about 1,296 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.
Mating Parts for M12
For M12, pair with a M12 hex nut (ISO 4032 / DIN 934) and, where used, a M12 flat washer (ISO 7089 / DIN 125A) under the head and under the nut.
When to Step Up or Down from M12
When the joint preload approaches the proof load of M12 class 8.8, step up to M16 class 8.8 (or move to M12 class 10.9). When the joint is over-specified, M10 often saves weight and cost without losing the safety margin.
Custom manufacturing · Made to drawing
Need slotted set screws with cone point in a size this table does not list?
This page covers M12 slotted set screws with cone point. 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.
