DIN 914 Socket Set Screws (Cone Point)
Hexagon socket set screws with cone point per DIN 914 — current norm DIN EN ISO 4027 — M1.4 to M24 in 45H steel or A2/A4 stainless, thread 6g. The deepest-biting grub screw for permanent location against heavy torque.
Last updated: 2026-11
Specifications
The cone-point set screw is the set-screw family's permanent mark: a headless grub screw whose tapered tip seats into a mating cone dimple and holds by positive engagement, not friction. The collected standard table runs M1.4 through M24 in 45H steel (the set-screw hardness class) or A2/A4 stainless, thread tolerance 6g. At M10 the socket takes a 5 mm hex key with a 4 mm minimum key engagement and an e (corner) minimum of 5.72 mm that keeps the key from rounding under torque. DIN 914's current norm is DIN EN ISO 4027. Compared with the cup point (DIN 916), the cone point penetrates deeper and holds harder — which is why it belongs where the screw will not be repositioned: the tip and its dimple are effectively a matched pair, and the mark it leaves is meant to stay.
| Standard | DIN 914 — hexagon socket set screw with cone point; current norm DIN EN ISO 4027 |
|---|---|
| Size range | M1.4 – M24 |
| Dimensions at M10 | e min 5.72 mm; s (hex socket) nominal 5 mm (min 5.02 / max 5.095 mm); t (key engagement) min 4 mm; P (pitch) 1.5 mm |
| Strength classes | Steel 45H; stainless A2, A4 |
| Thread | 6g |
| Nominal size | Thread pitch (mm) | D max — body dia (mm) | J max — cone point dia (mm) | L preferred min — cone point (mm) |
|---|---|---|---|---|
| M3 | 0.5 | 2.10 | 0.3 | 4.0 |
| M4 | 0.7 | 2.75 | 0.4 | 4.0 |
| M5 | 0.8 | 3.70 | 0.5 | 5.0 |
| M6 | 1.00 | 4.25 | 1.5 | 6.0 |
| M8 | 1.25 | 6.00 | 2.0 | 6.0 |
| M10 | 1.50 | 7.40 | 2.5 | 8.0 |
| M12 | 1.75 | 8.60 | 3.0 | 10.0 |
| M16 | 2.00 | 12.35 | 4.0 | 14.0 |
| M20 | 2.50 | 16.00 | 6.0 | 18.0 |
| M24 | 3.00 | 18.95 | 8.0 | 20.0 |
- Row 1 (M3): M3-M5 cone point diameters print 0.3 / 0.4 / 0.5 where the ISO 4027 dt maxima are 0.75 / 1.0 / 1.25; a second published chart prints these small sizes SHARP, agreeing that the guide cones are not truncated to the ISO diameters — carried as printed.
- Row 4 (M6): the M6 cone point diameter prints 1.5 where the second published chart prints 1.0 (the ISO 4027 dt max is 1.5) — carried as printed, not normalized.
- Row 6 (M10): the M10 cone point diameter prints 2.5 where the second published chart prints 2.0 (the ISO 4027 dt max is 2.5) — carried as printed, not normalized.
- Row 7 (M12): the M12 cone point diameter prints 3.0 where the second published chart prints 2.0 (the ISO 4027 dt max is 3.0) — carried as printed, not normalized.
Materials
- Steel
- Stainless steel
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 914 Socket Set Screws (Cone Point)) 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 quantity is 10,000 pieces. Stock items run 3–7 days. Quantities or variants outside the standard range are confirmed at 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
Cone point or cup point — when does the deeper bite pay off?
Decide by whether the location is permanent. The cone point (DIN 914) seats into a mating conical dimple and holds by positive engagement — the strongest arrangement of the standard points against heavy or reversing torque, and the right choice for collars, gears and index stops that will not be moved. The cup point (DIN 916) bites a shallower ring and is the choice when some repositioning is expected. Both run in the same 45H steel or A2/A4 stainless makings over the same M1.4–M24 range; the source table tabulates the cone tip diameter only on the larger sizes, so confirm the tip geometry for small threads at quotation.
What is the MOQ and lead time for these screws?
Minimum order quantity is 10,000 pieces per item. Stocked sizes ship in 3–7 days; non-stock diameters, lengths or finishes are quoted with a confirmed schedule. Common sizes in this designation are widely stocked — confirm the exact schedule against quantity and size mix at quotation.
What should an RFQ for these screws state?
State the standard designation (for example DIN 914, DIN 915, DIN 7981/7982/7983 — or the ISO designation your drawing prints), thread or tapping size, length or head dimension, strength class or material (such as 45H, 4.8, A2-70, A4-80 or brass), finish (black oxide, zinc plated, or plain), required certificates such as a mill test report per EN 10204 3.1, and quantity per size — plus destination country.
Related knowledge
- Thread-Forming vs Thread-Cutting vs Thread-Rolling Self-Tapping Screws: What the Evidence Settles on Base Material
- Screw Family Selection by Base Material: Wood, Machine and Self-Tapping Threads, Engagement and Coating
- Hex Bolts vs Socket Head Cap Screws: What the Evidence Settles on Strength, Clearance and Cost
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