ISO 7435 - Slotted set screws and pins
ISO 7435 is the international standard for slotted set screws with a long dog point. Export drawings and international specifications frequently call these out by their ISO number rather than the German DIN designation, so Definite Metal supplies them marked and certified to ISO 7435. The screw is headless, driven with a flat screwdriver, and carries a long unthreaded nose that drops into a hole or slot in the mating part to locate it positively. We manufacture ISO 7435 in CW614N brass across the full standard range, M1.6 to M12. Part of our brass grub screws range.
How the Standard Is Used on Export Orders
Buyers working to ISO documentation, and OEMs harmonising a multi-country bill of materials, specify ISO 7435 so that parts are interchangeable regardless of origin. The dimensions match DIN 417 exactly, so an ISO 7435 screw and a DIN 417 screw of the same size are physically the same part — the difference is which standard number appears on the drawing and the certificate. We quote and certify to whichever your documentation requires. Where the mating part has no hole, a cup point (ISO 7436) locks on the plain surface instead.
Why Brass
Brass ISO 7435 suits non-magnetic and corrosion-sensitive location — instrument stages, optical mounts, light indexing gear and electrical positioning — and mating into brass or aluminium without the seizing risk of plated steel. CW614N turns a clean dog and crisp slot at production speed. For high-load drives, steel or stainless is available to the same ISO 7435 geometry.
ISO 7435 Dimensions (mm)
| Thread d | Pitch P | Dog dia. dp (max) | Dog length z (min–max) | Slot width n | Slot depth t (min) | Length l range |
|---|---|---|---|---|---|---|
| M1.6 | 0.35 | 0.8 | 0.8–1.05 | 0.25 | 0.56 | 2–8 |
| M2 | 0.4 | 1.0 | 1.0–1.25 | 0.25 | 0.64 | 2.5–10 |
| M2.5 | 0.45 | 1.5 | 1.25–1.5 | 0.4 | 0.72 | 3–12 |
| M3 | 0.5 | 2.0 | 1.5–1.75 | 0.4 | 0.8 | 3–16 |
| M4 | 0.7 | 2.5 | 2.0–2.25 | 0.6 | 1.12 | 4–20 |
| M5 | 0.8 | 3.5 | 2.5–2.75 | 0.8 | 1.28 | 5–25 |
| M6 | 1.0 | 4.0 | 3.0–3.25 | 1.0 | 1.6 | 6–30 |
| M8 | 1.25 | 5.5 | 4.0–4.3 | 1.2 | 2.0 | 8–35 |
| M10 | 1.5 | 7.0 | 5.0–5.3 | 1.6 | 2.4 | 10–35 |
| M12 | 1.75 | 8.5 | 6.0–6.3 | 2.0 | 2.8 | 12–35 |
Standard nominal values; custom dog lengths to drawing. Other sizes to order.
ISO 7435 is equivalent to DIN 417. Related national designations include CSN 021183 and PN 82276.
Materials — Brass Grades
| Grade | Standard | Character | Typical composition |
|---|---|---|---|
| CW614N | EN 12164 | Free-machining brass (standard) | ~58% Cu, ~3% Pb, bal. Zn |
| CW617N | EN 12165 | Hot-forging brass | ~58% Cu, ~2% Pb, bal. Zn |
| IS 319 | IS 319 | Free-cutting brass (Indian) | ~57–59% Cu, Pb, bal. Zn |
| MS / SS 303/304/316 | — | On request | Mild steel or stainless |
Also available in MS and SS 303/304/316 on request.
Finish Options
Natural brass as standard; on request nickel plating, tin plating, or bright dip / passivation. Steel and stainless variants can be supplied plain, zinc plated, or black oxide.
Manufacturing & Export Capability
Custom manufacturing from drawing/sample · MOQ: 500 pcs (typical) · Lead time 1–2 weeks · ISO 9001:2015 · Export packing · FOB Mundra / CIF worldwide · Brass specialist in Jamnagar, India’s brass city
18+ years of manufacturing experience · 19 skilled workers · Sales@definitemetal.com
Applications & Industries
ISO 7435 brass long-dog-point set screws are used internationally as locating pegs and stops in indexing stages, light keyless drives, slotted sliding mechanisms, and non-magnetic instrument and electrical assemblies specified to ISO documentation.
Frequently Asked Questions
Yes. The two standards specify identical dimensions for the slotted long-dog-point set screw. The choice is simply which number your drawing and certificate reference; we can mark to either.
ISO designations are used on international and multi-country bills of materials to keep parts interchangeable across suppliers and regions.
It is the long dog variant — for example about 1.5 to 1.75 mm on M3 and 4.0 to 4.3 mm on M8. The short-dog equivalent is ISO 4028 hex socket.
Yes, we supply material and dimensional documentation referencing ISO 7435 for export orders.
M1.6 to M12 with custom lengths and dog lengths to drawing; typical MOQ 500 pcs per size.