DIN 417 Slotted set screws and pins
DIN 417 is the slotted headless set screw with a long dog point — an unthreaded cylindrical nose projecting from the end of the screw. Instead of pressing or biting against a surface, the dog enters a drilled hole or milled slot in the shaft, so the two parts are located positively and cannot slide axially. That makes DIN 417 as much a locating pin as a clamp. Definite Metal manufactures it in CW614N brass from M1.6 to M12, with the extended dog length that distinguishes DIN 417 from the short-dog DIN 915. Part of our brass grub screws range.
What the Long Dog Point Does
The dog acts as a peg. Drop it into a cross-drilled hole and the screw becomes a keyless drive or a positive stop that carries load in shear as well as friction; run it into a longitudinal slot and the shaft can slide a set distance but never rotate or leave the slot. Because the nose is unthreaded and generously long, DIN 417 tolerates a little misalignment and still engages. Where you only need to lock rotation without a hole in the shaft, choose a cup point (DIN 438); buyers specifying to international documentation order the identical geometry as ISO 7435.
Why Brass
Brass DIN 417 is used where a non-magnetic, corrosion-free locating element is wanted — optical and instrument stages, light indexing mechanisms, electrical positioning, and assemblies mating with brass or aluminium where a plated steel dog might seize. CW614N turns a clean, concentric dog and a crisp slot. For heavily loaded drives on steel shafts, the same geometry is available in steel or stainless.
DIN 417 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.
DIN 417 corresponds to ISO 7435 (slotted set screws with long dog point). Also cross-referenced as 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
DIN 417 brass long-dog-point set screws serve as locating pegs and positive stops in indexing and adjustment stages, keyless shaft drives, sliding mechanisms running in a slot, and instrument and electrical assemblies needing non-magnetic, corrosion-free location.
Frequently Asked Questions
Both are dog-point set screws, but DIN 417 (slotted) has a long dog and DIN 915 / ISO 4028 (hexagon socket) has a short dog. The longer nose of DIN 417 engages deeper into a hole or slot.
Yes — the dog point works by entering a matching cross-drilled hole or a longitudinal slot. That is what gives it positive location and axial holding.
For light loads, yes. The dog seated in a cross hole transmits torque in shear. For heavier drive loads we recommend steel or stainless rather than brass.
ISO 7435 is the equivalent standard for the slotted long-dog-point set screw.
M1.6 to M12 with custom lengths and dog lengths to your drawing; typical MOQ 500 pcs per size.