Fruit Cage Parts

6 mm is the most common Allen size used in UK horticultural framing, especially for grub screws in aluminium or galvanised clamps. It provides enough torque without stripping softer metals.

 Fruit Cage Clamps.

Grub screws to be used in conjunction with clamps for Fruit Cage.

Five in Pack.

The 90° clamp serves as connection between 2 tubes of 25.4mm in diameter. Typical use is to connect the vertical post to the top rail. Supplied complete with grub screws.

This fitting is a tee connection between two tubes of 25.4mm. Typical use is to connect the vertical post to the top rail. Supplied complete with grub screws.

The clamp is a 3 way enclosed 90° corner joint for use with 25.4mm steel. Typical use is for connecting the top rails to the vertical at a 90° corner. Supplied complete with grub screws.

Our range of cast iron 'Tube Clamps' are manufactured with simplicity and ease of use in mind. Requiring just a 7mm allen key to tighten grub screws, our 25.4mm steel can be made into any structure for any application in a matter of seconds. No welding, bending, threading or special skills are required. Hot dipped galvanised finish.

• A 5‑way centre clamp is one of the most load‑efficient fittings in fruit cage and polytunnel framing because the vertical tube passes straight through the centre. This reduces shear stress compared to clamps that rely solely on side compression.

• The clamp’s 25.4 mm (1‑inch) sizing is a legacy horticultural standard — originally adopted because it matched early UK conduit sizes used in agricultural structures.

• The 90° tube layout creates a true orthogonal joint, which helps keep fruit cage frames square even when the ground isn’t perfectly level.

This fitting enables two vertical tubes of 25.4mm creating a hinge swivel system. Supplied complete with grub screws.