Square Key Clamp Swivel Wall Fixing for 25 x 25mm Box Section, Galvanised

The square key clamp swivel wall fixing fixes an angled square tube to a wall, with a swivel that travels about 85° from the vertical in each direction. The wall plate fixes through its two holes and the box section pushes into the swivelling socket, locked with one hex socket grub screw. It suits 25 x 25mm square box section and is malleable cast iron with a galvanised finish for indoor and outdoor use, so square tube frames can be built without welding. The price shown is for one fitting, with a minimum order of 5.

Why use a square key clamp swivel wall fixing

Any angle to a wall. The swivel lets a raking rail, brace or stay meet a wall at the angle the job needs.

No welding. Square box section frames go together with a hex key and can be taken apart, altered or extended later.

A clean, modern look. Square section suits architectural handrails, shop fitting, display frames and furniture where a round tube would look out of place.

Galvanised for outdoors. The zinc coating protects the steel in yards, gardens and outdoor frames.

Where it is used

Square section handrails and balustrades, shop fitting and display frames, benches, tables and workstations, shelving and storage frames, garden and outdoor structures, and any frame built from 25 x 25mm box section.

Specifications

Letters refer to the dimension drawing above. Dimensions are for guide only and may vary slightly.

Know its limits

It is not designed to withstand lateral loads and should never be used as a base fitting for guard rail systems. It fits 25 x 25mm square box section only; it will not grip round tube or other square sizes. No load rating is published; for a frame that must carry a set load, ask a structural engineer to check the design.

Which 25 x 25mm square fitting?

How many do you need?

One at each joint of this type. Sketch the frame, mark each joint and count the fittings for each type before you order.

Choosing the right size

Square key clamps are sized by the outside of the box section. Measure across the flats of your tube: this fitting suits 25 x 25mm. The same fitting is made for 40 x 40mm box section.

Fitting and care

Cut the box section square and deburr the ends. Mark and drill the wall, then fix the plate through both holes with screws or bolts up to 11mm to suit the surface. Push the box section into the socket, set the angle and tighten the grub screw firmly with a hex key. Check the screws after the first week and once a year after that. Touch up scratched galvanising with zinc-rich paint.

Frequently asked questions

Ordering and delivery

Order 5 or more online, with Express UK Delivery to your site and same-day dispatch on orders before 2pm, Monday to Friday. For a full frame kit, call 01744 520 110 or email sales@industrialsuppliesco.co.uk and we will confirm availability and delivery before you order.