BS1139 Scaffolding Screw Base Jack Nut for Construction

BS1139 Scaffolding Screw Base Jack Nut for Construction

Production Information

Commodity Name	Scaffolding Jack Base Nut
Main Material	Q235 or Q345
Nut Tube Outer Diameter	76mm or per design
Nut Height	49.0mm or per request
Nut Length	20mm or per request
Threaded Tube or Rod size	32mm, 34mm, 35mm or 38mm
Surface treatment	Electro Galvanized, HDG, or Black
Advantages	Competitive price, High-quality   products, 24-hour after-sales service
Port	Nanjing/XINGANG
Currency	USD, RMB
Payment	L/C, T/T, 30% in advance
Package	Steel Pallets or customized

How is base jack used in Scaffolding?

The scaffolding leveling jacks the scaffold tower when the tower legs are placed on surfaces of different elevations. It ensures all the legs will have (appx) equal bearing on the substrate(s) the tower rests upon.

Unless the scaffolding screw jack is placed on something solid, it will need dunnage underneath it to properly transfer the leg load into the soil.

It is also used to ‘fine tune’ the height of the tower itself, so that height adjustments of up to around 12″ can be achieved.

Essentially, a scaffolding jack is a load bearing base and is used to hold standards/uprights (the vertical tubes) in place and help transfer the weight of the structure to the ground. The base jack is used to help spread the load and has a shank in the center to hold the tube in place. To eliminate sway, a facade brace is fitted to the face of the scaffold every 30 meters. The spacing of the upright scaffolding and base jack scaffolding is usually around every 2.1m but this can be reduced to 2m or 1.8m depending on the weight of the structure.

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