The H-Lift DIN 1478 Turnbuckle (Rigging Screw) features a robust closed-body design manufactured from seamless steel tubing. Unlike open-frame turnbuckles, this pipe-style construction protects the internal threads from damage and debris while providing a sleek, snag-free profile. Designed to German DIN 1478 standards, these turnbuckles include sight holes for verifying adequate thread engagement and are ideal for architectural rigging, structural tensioning, and marine applications where superior aesthetics and thread protection are required.
H-Lift DIN 1478 Turnbuckles (also known as Rigging Screws or Bottlescrews) feature a closed, seamless tubular steel body. This design not only provides a sleek, architectural aesthetic but also protects the internal threads from dirt, corrosion, and physical damage, ensuring long-lasting smooth operation even in harsh environments.
The seamless steel pipe body encases the threads, preventing the ingress of debris and moisture while protecting the threads from impact damage.
Built from robust steel tubing (S235/S355) with WLL ratings up to 17 tons, offering superior durability compared to standard open-frame turnbuckles.
Available in Hot Dip Galvanized or Electro-Galvanized finishes, making them ideal for outdoor structural and marine applications.
Can be supplied with Jaw & Jaw, Eye & Eye, Hook & Eye, or Stub End fittings. Stocked in metric sizes from M6 to M50.
Q: What is the main advantage of a DIN 1478 turnbuckle?
A: The closed (tubular) body design. It protects the threaded spindles from damage and corrosion, and its clean lines make it a preferred choice for architectural rigging where aesthetics matter.
Q: Is DIN 1478 the same as a Rigging Screw?
A: Yes. In the industry, "Rigging Screw" typically refers to this specific closed-body tubular design (DIN 1478), while "Turnbuckle" often refers to the open-body frame design (like DIN 1480).
| Item No. | Size | WLL (ton) | Main Dimensions (mm) | Weight | Product Code | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| A | L | B | C | D | φ | kg | ||||
| TB147806 | M6 | 0.2 | 110 | 6 | 8.5 | 17.5 | 6 | 170 | 0.14 | 702003006 |
| TB147808 | M8 | 0.3 | 110 | 6 | 12 | 18.5 | 6 | 180 | 0.21 | 702003008 |
| TB147810 | M10 | 0.5 | 125 | 8 | 14 | 25 | 8 | 210 | 0.40 | 702003010 |
| TB147812 | M12 | 0.7 | 125 | 10 | 16 | 27 | 10 | 220 | 0.60 | 702003012 |
| TB147816 | M16 | 1.2 | 170 | 12 | 18 | 35 | 12 | 285 | 1.20 | 702003016 |
| TB147820 | M20 | 1.5 | 200 | 16 | 23 | 38 | 12 | 335 | 2.00 | 702003020 |
| TB147824 | M24 | 5.0 | 255 | 22 | 29 | 42 | 13 | 405 | 3.80 | 702003024 |
| TB147833 | M33 | 7.0 | 295 | 27 | 38 | 58 | 14 | 465 | 6.60 | 702003033 |
| TB147839 | M39 | 10.0 | 330 | 33 | 44 | 63 | 16 | 555 | 11.4 | 702003039 |
| TB147850 | M50 | 17.0 | 356 | 42 | 55 | 100 | 18 | 680 | 21.6 | 702003050 |
Although the closed body protects threads, periodic lubrication is still recommended to ensure smooth adjustment over time. Always inspect the inspection hole (if present) or verify thread engagement depth before applying tension.
Rigging screws and turnbuckles are essential components used to adjust tension and secure loads. While they serve similar functions, their distinct designs make them suitable for specific applications.
*Rigging screws feature a pipe-like closed body encasing the threads.
*Turnbuckles feature an open frame allowing view of the threads.
