DIN 1480 Turnbuckles, Forged (Open Form)
DIN 1480 forged open-form turnbuckle bodies, M6–M56 — the hot-forged rigging screw body with open (C-saddle) ends that take hook or eye fittings, with the collected body-geometry ladder by thread.
Last updated: 2026-11
Specifications
A DIN 1480 turnbuckle is the tension-adjusting body of a rigging screw: a forged open-frame body threaded one way (right-hand) in one end and the other way (left-hand) in the other, so turning the body winds two end fittings in or lets them out together. The open form leaves each end as a C-saddle that a mating hook or eye fitting hooks into — fittings are locked to the body by the wind-up, and the body itself carries no load-rated swivel. The collected ladder runs M6 to M56 — from guide-wire and fencing work at the small end up to heavy mooring and structural tie-back sizes — with per thread the body length l1 (110 → 355 mm), the body bar dimensions m1/m2, the eye or boss dimensions e/f/h and the thread-boss diameter d2 (12 → 80 mm) as lettered by the source. Reading the ladder: l1 is the body frame length, not the take-up — total assembly length is l1 plus the engaged fitting lengths, and the take-up window is set by the mating stud lengths, none of which the source tabulates. One caution from the capture: the M48 and M56 columns are identical in the source — verify before quoting the top two sizes. The DIN 1478 closed-body turnbuckle in this catalog is the counterpart where the end fittings must be captive (closed frame, weld or pin retention). Proof loads, working-load limits and materials are not tabulated by the collected specification — per RFQ.
| Standard | DIN 1480 — turnbuckles, forged, open form (C-saddle ends for hook/eye fittings) |
|---|---|
| Size range | Threads M6 – M56, twelve sizes in the collected ladder |
| Body length | l1: 110 → 355 mm across the ladder |
| Body / boss geometry | m1: 12 → 78; m2: 6 → 39; e: 19 → 135; f: 9 → 65; h: 6 → 40; thread-boss diameter d2: 12 → 80 (all mm, as lettered by the source) |
| Thread direction | Right-hand in one end, left-hand in the other — the body winds both fittings simultaneously |
| Load ratings / materials | Not tabulated by the collected specification — per RFQ (state application, required WLL and fitting pair at quotation) |
| Thread | l1 | m1 | m2 | e | f | h | d2 |
|---|---|---|---|---|---|---|---|
| M6 | 110 | 12 | 6 | 19 | 9 | 6 | 12 |
| M8 | 110 | 15 | 8 | 23 | 11 | 8 | 15 |
| M10 | 125 | 18 | 9 | 30 | 14 | 9 | 18 |
| M12 | 125 | 21 | 11 | 34 | 16 | 11 | 21 |
| M16 | 170 | 27 | 14 | 42 | 20 | 14 | 27 |
| M20 | 200 | 34 | 17 | 52 | 24 | 17 | 34 |
| M24 | 255 | 39 | 20 | 60 | 28 | 20 | 39 |
| M30 | 255 | 45 | 23 | 74 | 34 | 23 | 45 |
| M36 | 295 | 55 | 28 | 86 | 40 | 28 | 55 |
| M42 | 330 | 63 | 32 | 104 | 50 | 32 | 63 |
| M48 | 355 | 78 | 39 | 135 | 65 | 40 | 80 |
| M56 | 355 | 78 | 39 | 135 | 65 | 40 | 80 |
- Row 12 (M56): The M48 and M56 rows are identical in the source (l1 355 through d2 80 across every column). Reproduced verbatim — verify the M56 column against DIN 1480 before quoting the top sizes.
Materials
- Material specified per RFQ — rigging bodies are typically forged steel; state whether the run is outdoor/marine (finish follows at quotation) and never exceed a WLL confirmed by the supplier
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 1480 Turnbuckles, Forged (Open Form)) 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 1,000–10,000 pieces depending on size. Stock items run 3–7 days. High-strength and custom parts run 15–25 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
DIN 1480 (open) or DIN 1478 (closed) — which turnbuckle body fits the rig, and what does the table give me?
The frame decides. The open DIN 1480 body ends in C-saddles: fittings hook in and are held by the wind-up, so rigging is fast and fittings swap without disassembly — the standard arrangement where hooks and eyes are the vocabulary of the rig. The closed DIN 1478 body in this catalog captures the fitting inside a closed eye, for runs where a fitting must not be able to unhook (vibration, handling, permanent installs). From the collected table you get the frame geometry per thread: l1 (body length, 110 → 355 mm), the bar and boss dimensions m1/m2/e/f/h/d2 — the numbers a rigging drawing needs to clear surrounding hardware. What the table does not give is load data: neither proof load nor working-load limit is tabulated in the collected capture, so state the application and required WLL on the RFQ and confirm the certificate at quotation. Also verify the top sizes before quoting — the M48 and M56 columns print identically in the source (flagged under the table).
Related knowledge
- What Bolt Property Classes 8.8, 10.9 and 12.9 Encode — and When High Strength Stops Being the Right Choice
- Bolt Grade Selection: ISO 898-1 8.8/10.9/12.9 vs ASTM A307 and A325
- 8.8 vs 10.9 vs 12.9 Bolts: Strength, Hardness and Cost — What the Evidence Settles
- Calculating Bolt Preload and Clamp Force: Torque, Friction and Tightening Method
- How to Determine Tightening Torque and Choose a Tightening Method for a Bolted Joint
- Fastener Failure Modes: Which Fatigue, Creep and SCC Controls the Evidence Supports
- Hydrogen Embrittlement in High-Strength Bolts: Which Grades Need Controls, Which Coatings and Baking Schedules Are Acceptable, and What to Require Before the RFQ
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