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Forged Turnbuckle Dimensions (DIN 1480 Open Type, M6 to M48)
Guide · Updated October 28, 2026
DIN 1480 covers forged open-type turnbuckle bodies, M6 to M56 in the standard (M6 to M48 here). Values agree across the DIN 1480 text, Fuller Fasteners, Wegertseder, Hilifting and Globalfastener. Check your supplier for critical work.
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Step by step
- Match the thread: One boss is left-hand (marked L), the other right-hand.
- Pick the ends: Fit hooks, eyes or weld ends (DIN 34828) to suit the load.
- Check the length: Use l1 for the body and the adjustment range for take-up.
- Do not overload: DIN 1480 bodies are not rated lifting gear; check the supplier load rating.
DIN 1480 forged turnbuckle dimensions (mm)
Columns: thread d1, overall length l1 (nominal), adjustment range, boss diameter d2 (nominal), frame width e (nominal), frame thickness h min.
- Size | l1 | adjust | d2 | e | h min
- M6 | 110 | 80 | 12 | 19 | 6
- M8 | 110 | 75 | 15 | 23 | 8
- M10 | 125 | 85 | 18 | 30 | 9
- M12 | 125 | 80 | 21 | 34 | 11
- M16 | 170 | 110 | 27 | 42 | 14
- M20 | 200 | 130 | 34 | 52 | 17
- M24 | 255 | 170 | 39 | 60 | 20
- M30 | 255 | 160 | — | 74 | 23
- M36 | 295 | 180 | — | — | —
- M42 | 330 | 200 | — | — | —
- M48 | 355 | 195 | — | — | —
Worked example: M12 forged turnbuckle
An M12 DIN 1480 body is 125 mm long with up to 80 mm of take-up. The bosses are 21 mm across and the frame is 34 mm wide.
Common problems
- Body will not draw up: one rod has the wrong hand; the left boss is marked L.
- Runs out of take-up: pick a longer size or preset both ends to mid-travel.
- Bent frame: the load is too high for a non-rated body.
FAQ
What is DIN 1480?
A forged open-frame turnbuckle body (Spannschlossmutter, offene Form) with one right-hand and one left-hand threaded boss.
How is it different from DIN 1479?
DIN 1479 is a closed hex bar body; DIN 1480 is an open forged frame you can see the rod ends through.
Why are some cells dashed?
d2 at M30 conflicts (45 in DIN vs 46 at Fuller), and d2, e and h above M30 appear in only one source.
Why no M14 or M56?
M14 is a supplier size not in the DIN table, and M56 appears in only one source.
Related guides and calculators
- Lifting eye bolts (DIN 580)
- Tube turnbuckles (DIN 1478)
- Hex turnbuckle nuts (DIN 1479)
- Hex coupling nuts (DIN 6334)
- How to cut left-hand threads
- All free machinist calculators
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