Screw Jacks are our core products and we supply  all types of scaffold screw jacks. Include adjustable base jack, U head jacks, fork head (four-way head) jacks, J head jacks, swivel screw jacks, etc.

The scaffold screw jacks are leveling legs for scaffolding. It is always adjustable to make your scaffold even. That is why the scaffold screw jacks are also called adjustable jacks, scaffold standard, scaffold screw, scaffold leg, scaffold jack support, jack scaffolding, etc.

GNV scaffolding screw jacks are able to be used in all scaffolding systems. Include ringlock system scaffolding, cuplock system scaffolding, kwikstage scaffolding and frame scaffolding.

For construction scaffolding safety, the scaffold screw jack nut is always stopping at 150mm from the top (or 1/4 of overall height) to avoid running out in scaffold working.

The base plate sizes of the scaffold screw jack base are customized. While the most used base plate sizes are 150x150mm, 140x140mm, 120x120mm, etc.

All of the scaffold screw jacks are tested according to EN 12810 standard regulation with safety load capacity. In addition, we do custom jack scaffolding manufacture with your company logo and name.