Adjustable screw jack supplied with a U-head cradle for the top and a base plate for the bottom.
The MerForge screw jack covers both ends of a prop. The same threaded rod is supplied with a forged U-head cradle for the top and a flat base plate for the bottom, so one item either levels a formwork soffit or carries a scaffold standard. The rolled thread with a large adjusting nut sets the working level precisely under load, then releases freely for striking.
U-head for the top of the prop and a base plate for the bottom — order them as a matched set or separately.
The formed U-head positively locates timber bearers or scaffold tube, preventing the soffit rolling off.
A rolled thread with a large hex nut gives smooth, precise levelling under load.
Solid or heavy-wall tubular screw rated for slab formwork loads in excess of 25 kN.
Standard galvanizing protects the thread from corrosion so it stays free-running.
Dimensions follow EN 74 / BS 1139 series. Custom sizes produced to drawing.
| Product Type | U-head and base screw jack / adjustable formwork and scaffold jack |
|---|---|
| Set Content | U-head (top) + flat base plate (bottom); also supplied separately |
| Construction | Forged U-head and welded base plate fitted to a threaded screw rod (solid or hollow) |
| Material | 45# carbon steel screw / Q235 head and base |
| Thread Size | M38 × 4 mm standard (M32, M48 on request) |
| Overall Length | 600 mm / 800 mm (custom lengths available) |
| Load Capacity | ≥ 25 kN per jack |
| Surface Finish | Hot-dip galvanized 45–70 μm / electro-galvanized |
| Unit Weight | Approx. 4.20 kg (600 mm, solid screw) |
500 pcs
20 pcs per carton or bundle, on steel pallets
15–30 days after deposit and sample approval
Download full specification sheet (PDF) · Includes dimensions, materials, coating options and packing data.
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