DIN 1476 Round Head Grooved Pins
DIN 1476 round head grooved pins, Φ1.4 to Φ20 — the three-groove press-fit pin with a formed round head, no separate retaining member needed — with the full collected 13-size table: head diameter d k, head height k, groove diameter d 2 limits and the source's radius and chamfer rows.
Last updated: 2026-11
Specifications
DIN 1476 adds a formed round head to the three-groove press-fit pin: the grooved shank locks in the drilled hole exactly like its headless siblings, and the head — driven flush or proud, depending on the assembly — becomes the axial stop. That removes a washer or a shoulder from the design in thin-panel and hardware work: one press-in part does the locating, the retention and the face coverage. The collected table covers Φ1.4 to Φ20 — 13 sizes — with pin diameter limits, head diameter d k (nominal / max / min), head height k (nominal / max / min), the source's radius r ≈ and chamfer f ≈ rows, and the groove diameter d 2 (nominal / max / min). The source footnotes part of its rows as not standardized reference values; the note is carried on the table. The source prints no shear row for this head form. Lengths, materials and finishes are not tabulated and stay per RFQ. For the countersunk-head counterpart see DIN 1477 on this site.
| Standard | DIN 1476 — round head grooved pins (three-groove press-fit pin with formed round head) |
|---|---|
| Size range | Nominal diameters Φ1.4 – Φ20 (13 sizes tabulated); length to order |
| Tabulated geometry | Per size: pin diameter d (max / min), head diameter d k (nominal / max / min), head height k (nominal / max / min), radius r ≈, chamfer f ≈, groove diameter d 2 (nominal / max / min) |
| Function | Grooved shank locks in a drilled hole; formed head is the built-in axial stop |
| Materials / strength | Not tabulated by the collected specification — per RFQ (the source prints no shear row for the head form) |
| Size | d — max=nominal size | d — min | d k — Nominal Size | d k — max | d k — min | k — Nominal Size | k — max | k — min | r — ≈ | f — ≈ | d 2 — Nominal Size | d 2 — max | d 2 — min |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Φ1.4 | 1.4 | 1.35 | 2.4 | 2.6 | 2.2 | 0.8 | 0.9 | 0.7 | 1.4 | 0.5 | 1.5 | 1.55 | 1.5 |
| Φ1.6 | 1.6 | 1.55 | 2.8 | 3 | 2.6 | 1 | 1.1 | 0.9 | 1.6 | 0.5 | 1.7 | 1.75 | 1.7 |
| Φ2 | 2 | 1.95 | 3.5 | 3.7 | 3.3 | 1.2 | 1.3 | 1.1 | 1.9 | 0.5 | 2.15 | 2.2 | 2.15 |
| Φ2.5 | 2.5 | 2.425 | 4.4 | 4.6 | 4.2 | 1.5 | 1.6 | 1.4 | 2.4 | 0.7 | 2.7 | 2.75 | 2.65 |
| Φ3 | 3 | 2.925 | 5.2 | 5.45 | 4.95 | 1.8 | 1.95 | 1.65 | 2.8 | 1 | 3.2 | 3.25 | 3.15 |
| Φ4 | 4 | 3.9 | 7 | 7.25 | 6.75 | 2.4 | 2.55 | 2.25 | 3.8 | 1.5 | 4.25 | 4.3 | 4.2 |
| Φ5 | 5 | 4.9 | 8.8 | 9.1 | 8.5 | 3 | 3.15 | 2.85 | 4.6 | 1.5 | 5.25 | 5.3 | 5.2 |
| Φ6 | 6 | 5.9 | 10.5 | 10.8 | 10.2 | 3.6 | 3.75 | 3.45 | 5.7 | 2 | 6.3 | 6.35 | 6.25 |
| Φ8 | 8 | 7.85 | 14 | 14.4 | 13.6 | 4.8 | 5 | 4.6 | 7.5 | 2 | 8.3 | 8.35 | 8.25 |
| Φ10 | 10 | 9.85 | 16 | 16 | 14.9 | 6.5 | 7.4 | 6.5 | 8 | 2.5 | 10.35 | 10.4 | 10.3 |
| Φ12 | 12 | 11.8 | 19 | 19 | 17.7 | 7.5 | 8.4 | 7.5 | 9.5 | 2.5 | 12.35 | 12.45 | 12.25 |
| Φ16 | 16 | 15.8 | 25 | 25 | 23.7 | 10 | 10.9 | 10 | 13 | 2.5 | 16.4 | 16.5 | 16.3 |
| Φ20 | 20 | 19.8 | 32 | 32 | 30.7 | 13 | 13.9 | 13 | 16.5 | 3 | 20.5 | 20.6 | 20.4 |
Materials
- Material and finish specified per RFQ — the collected specification table covers geometry and the source's strength rows only
Ordering & documentation
Documents
Shipments are backed by Mill Test Certificate (MTC), Dimensional Report, Salt Spray Test Report on request, with full batch traceability from raw material to finished product. Quality management follows the owner-confirmed compliance list: ISO 9001:2015, RoHS, REACH. Exact document sets are confirmed on the order.
Quotation
- The fastener family (DIN 1476 Round Head Grooved Pins) plus the standard designation from your drawing — DIN / ISO / JIS / ASTM / ANSI, or a drawing for custom parts.
- Size (diameter and length), thread type (metric or inch), property class or grade, and coating or finish.
- Quantity per size and your target delivery date.
- Destination country, and any required documents (for example a mill test certificate) so the quote includes them.
Sample & supply
Minimum order quantities and lead times for this family are confirmed at quotation — send your sizes, grades and quantities on the RFQ and the quote will carry a firm schedule. Sample availability is confirmed with the quotation.
Storage & shipping
Parts are packed for export and shipped factory-direct to buyers in Europe, Asia, the Americas and the Middle East. Store fasteners dry and protected until installation, and keep coated parts in their packaging until use; specific packing and preservation requirements can be stated on the order and confirmed at quotation.
Frequently asked questions
Round head (DIN 1476) or countersunk head (DIN 1477) grooved pin?
Surface, not strength. The round head sits proud and covers a plain drilled hole — it is the choice on visible faces, thin panels where a countersink would break through, and assemblies where the head is allowed to ride in a slot or cam track. The countersunk DIN 1477 needs the hole counterbored but finishes flush, which matters on sliding faces and where a second part must pass over the pin. Both lock the same way — three grooves, pressed into a plain drilled hole, no reaming — so the decision rarely changes the joint design, only the face it presents. Match the head diameter d k / d 3 rows to your clearance and coverage needs, and confirm material and finish at quotation since neither is printed by the collected specification.
What is the MOQ and lead time for this pin type?
Commercial terms for this family are confirmed at quotation — state sizes, tolerance class and quantities on the RFQ for a firm schedule. Common diameters in this pin type are widely stocked; confirm the exact schedule against quantity and size mix at quotation.
Request a Quote
Get factory-direct pricing from the manufacturer.
What to include in your inquiry
- ✓ Standard and property class (e.g. DIN 912, ISO 4762, class 8.8) — or a drawing for custom parts.
- ✓ Sizes, lengths and thread type (metric or inch).
- ✓ Quantity per size and your target delivery date.
- ✓ Destination country, plus any coating or finish requirement.
- ✓ Any documents you need with the shipment (e.g. mill test certificate) so the quote includes them.
- ✓ Your inquiry goes straight to the factory team by email and gets a reply within 24 hours.
- ✓ Factory-direct pricing
- ✓ Standard and custom specifications
- ✓ Factory-direct export to buyers in Europe, Asia, the Americas and the Middle East
- ✓ Full fastener family support