For slotted set screws with cup point, ISO 7436 fixes the geometry and the tolerances. The sections below describe the scope of the document, the properties it deliberately leaves to companion standards, and the equivalent designations across standards bodies.
ISO 7436 — Scope
ISO 7436 is "Slotted set screws with cup point".
Material, property class, surface finish and packaging are governed by separate documents — ISO 898-1 and ISO 898-2 for mechanical property classes, ISO 4042 for electroplated finishes.
Tolerance & Product Grades
ISO 7436 does not divide slotted set screws with cup point into product grades. Tolerances are given as limits on the individual dimensions in the table.
Where a general-tolerance class is cited on the drawing instead, it applies to the dimensions not otherwise toleranced.
Dimensions Specified by ISO 7436
| Size | dz_min (mm) | dz_max (mm) | n_nom (mm) | n_min (mm) | n_max (mm) | t_min (mm) | t_max (mm) | Length range l (mm) | Reference standard |
|---|---|---|---|---|---|---|---|---|---|
| M1.6 | 0.55 | 0.8 | 0.25 | 0.31 | 0.45 | 0.56 | 0.74 | 2~8 | ISO 7436 |
| M2 | 0.75 | 1 | 0.25 | 0.31 | 0.45 | 0.64 | 0.84 | 2.5~10 | ISO 7436 |
| M2.5 | 0.95 | 1.2 | 0.4 | 0.46 | 0.6 | 0.72 | 0.95 | 3~12 | ISO 7436 |
| M3 | 1.15 | 1.4 | 0.4 | 0.46 | 0.6 | 0.8 | 1.05 | 3~16 | ISO 7436 |
| M3.5 | 1.45 | 1.7 | 0.5 | 0.56 | 0.7 | 0.96 | 1.21 | 4~20 | ISO 7436 |
| M4 | 1.75 | 2 | 0.6 | 0.66 | 0.8 | 1.12 | 1.42 | 4~20 | ISO 7436 |
| M5 | 2.25 | 2.5 | 0.8 | 0.86 | 1 | 1.28 | 1.63 | 5~25 | ISO 7436 |
| M6 | 2.75 | 3 | 1 | 1.06 | 1.2 | 1.6 | 2 | 6~30 | ISO 7436 |
| M8 | 4.7 | 5 | 1.2 | 1.26 | 1.51 | 2 | 2.5 | 8~40 | ISO 7436 |
| M10 | 5.7 | 6 | 1.6 | 1.66 | 1.91 | 2.4 | 3 | 10~50 | ISO 7436 |
| M12 | 7.7 | 8 | 2 | 2.06 | 2.31 | 2.8 | 3.6 | 12~60 | ISO 7436 |
Equivalent Standards
Where direct equivalents exist (ISO ↔ DIN, ISO ↔ ASME), they are listed on the parent Slotted Set Screws with Cup Point page.
Always confirm against the dimensions on this page, since some "equivalent" standards differ in tolerances and head geometry.
Companion Standards
ISO 7436 controls only the geometry of slotted set screws with cup point. The mechanical strength is set by ISO 898-1 (bolts, screws and studs) or ISO 898-2 (nuts); the surface finish is governed by separate finish standards such as ISO 4042 for electroplating. For corrosion testing, the relevant document is ISO 9227 (neutral salt spray).
Custom manufacturing · Made to drawing
Need a screw to this standard in a non-standard size?
Parts built to ISO 7436 are already in the catalog, so a special is usually a variation on existing tooling rather than a new design — which is what keeps the cost down. Made by cold heading or warm forging.
Minimum order from 2,000 pieces; samples within 7 days of drawing approval.
