Scaffolding U Head Jack Base or Screw Jack: Which Fits Your Support Layout?

Start with the support point you need

The support point should decide the product family. Our Scaffolding Jack Base U Head is organized around two positions in a scaffold or shoring arrangement: a base plate for vertical posts and a U head for upper support of ledgers or timber beams. Our Scaffolding Screw Jack is a broader family that includes solid, hollow, U-head, swivel, and universal versions.

That distinction helps separate two purchasing decisions. Choose the jack base and U head line when your layout calls for a defined base or overhead U support. Choose the screw jack line when the project may need different jack formats, including support on sloped ground or a hollow jack configuration. The phrase scaffolding u head jack base describes the first layout clearly when you are organizing the base and upper support positions.

Comparison at a glance

The diameter figures describe the product ranges in different ways. The jack base and U head line uses four stated outside-diameter options. The screw jack line separates its range by construction, so you should match the diameter to the selected solid, hollow, U-head, swivel, or universal type instead of treating 26 mm to 48 mm as one specification for every version.

Material and finish choices

Q235 and Q345 carbon steel are the stated material choices for the jack base and U head line. Its jack nut can be supplied in casting or forging forms. This gives you a clear request to put on a quotation: the steel grade, nut production form, screw diameter, screw length, and whether the base plate or U head is required.

The screw jack line covers more material forms because it groups several product designs together. Solid screw jacks use cast iron or cast steel. Hollow screw jacks use drop-forged construction. U-head jacks are available in solid and hollow types. If the order includes more than one jack design, ask us to separate the material and production method for each line item.

Both product families have galvanized options. The jack base and U head line lists electric galvanizing and hot-dip galvanizing. The screw jack line adds zinc plating and painted finishes. The finish should therefore be selected against the specified jack type and the working environment, with the same finish requirement applied across the quotation when consistent appearance or handling matters.

Adjustment and working layout

A jack base is intended to establish a stable foundation for vertical scaffold posts and to adjust the structure's height. The U head is placed at the upper level to support horizontal ledgers or timber beams. For a shoring arrangement, picture the base jack below the vertical post and the U head above the standard, with the two components serving different points in the load path.

The screw jack family gives you more layout formats to review. A solid screw jack is listed for medium to heavy load capacities. Hollow screw jacks begin at 34 mm and are drop forged. Swivel jacks are intended for sloped grounds, while universal and swivel screw jacks are designed for different configurations. This makes the family useful when one project includes level ground, beam support, and sloped areas, provided each location receives the matching jack type.

For example, if your crew is setting vertical posts on a level base and needs a separate upper support for timber beams, the jack base and U head format keeps those positions explicit. If the same order must cover a sloped section, a hollow, swivel, or universal screw jack may be the more relevant item to discuss. Send a layout drawing with the ground condition and support point marked so we can match the configuration.

Size details to put on the order

The jack base and U head line includes screw lengths of 600 mm, 750 mm, and 1,000 mm. Its base plate options run from 120 × 120 × 4 mm through 150 × 180 × 50 × 6 mm in the listed configurations. The line also includes a nut stop positioned 150 mm from the top to help prevent the nut from running out during adjustment.

The screw jack materials give diameter ranges by jack type, along with solid, hollow, U-head, swivel, and universal designs. They do not form one interchangeable size table across every version. Your order should identify the design first, then the diameter, material form, finish, and intended support use.

Questions to settle before requesting a quotation

Match the format to the layout

Pick the Scaffolding Screw Jack range when you need to review solid, hollow, U-head, swivel, or universal formats. Pick the Scaffolding Jack Base U Head when your design separates base support from upper beam or ledger support. Send your drawing, quantities, diameter, screw length, material, thread form, load-capacity group, and surface treatment for a quotation.