Universal Scaffold Screw Jacks With Dismountable Base Plate and U-Head
A steel base plate is equipped to the tubular screw jack by bolt, with a hole in each corner for securing to mudsill. Similar like the U-Head jacks. ACME threads are used on the screw jack.
Made from high strength steel pipes, screw jacks are to support and stabilize scaffoldings in construction. It can fit all types of scaffold systems, such as frames, ringlock, or cuplock systems.
There is a notch / cut in the threads of the screw jack to prevent the nut from coming off and to keep the screw jack from being over-extended.
Scaffold Base Jack:
| Screw /Tube size (mm) | Base plate (mm) | Nut (kg) | Weight (kg) |
| Ø30(solid) x 400 (600) | 120 x 120 x 5 | 0.25 | 2.75 (3.72) |
| Ø32(solid) x 400 (600) | 120 x 120 x 5 | 0.30 | 3.10 (4.20) |
| Ø34(solid) x 400 (600) | 120 x 120 x 5 | 0.40 | 3.50 (4.76) |
| Ø34(hollow) x 4 x 400 (600) | 150 x 150 x 6 | 0.55 | 2.80 (3.39) |
| Ø38(hollow) x 4 x 400 (600) | 150 x 150 x 6 | 0.50 | 2.90 (3.60) |
| Ø48(hollow) x 4 (5) x 600 | 150 x 150 x 8 | 1.00 | 5.00 (5.60) |
| Ø48(hollow) x 4 (5) x 820 | 150 x 150 x 8 | 1.00 | 6.00 (6.80) |
U-head Jack:
| Screw / Tube size (mm) | Base plate (mm) | Nut (kg) | Weight (kg) |
| Ø30(solid) x 400 (600) | 150 x 120 x 50 x 5 | 0.25 | 3.36 (4.33) |
| Ø32(solid) x 400 (600) | 150 x 120 x 50 x 5 | 0.30 | 3.70 (4.81) |
| Ø34(solid) x 400 (600) | 150 x 120 x 50 x 5 | 0.40 | 4.10 (5.37) |
| Ø34(hollow) x 4 x 400 (600) | 150 x 120 x 50 x 6 | 0.55 | 2.91 (3.74) |
| Ø38(hollow) x 4 x 400 (600) | 150 x 150 x 50 x 6 | 0.50 | 3.61 (4.28) |
| Ø48(hollow) x 4 (5) x 600 | 180 x 150 x 50 x 8 | 1.00 | 6.24 (6.82) |
| Ø48(hollow) x 4 (5) x 820 | 180 x 150 x 50 x 8 | 1.00 | 7.20 (8.00) |
