Key Clamp Wall Flange for 48.3mm Tube, Galvanised

The wall flange ends a tube rail neatly where it meets a wall, with no open tube end showing. The end of the rail pushes into a closed socket, one grub screw locks it, and the round plate is fixed flat to the wall with four screws. It suits 48.3mm outside diameter tube, used for handrails and guard rails, and is malleable cast iron with a galvanised finish for indoor and outdoor use. The price shown is for one fitting, with a minimum order of 5.

Why use a wall flange

A clean, finished rail end. Without a flange, a rail either stops short in mid-air or has to be welded to a wall plate. The flange closes off the tube end, carries the rail into the wall and leaves no sharp edge for sleeves and hands to catch on.

Galvanised for outdoors. The zinc coating protects the iron on external steps, ramps, yards and walls in all weathers.

No welding. Everything goes together with a hex key and a drill, so a rail can be fitted on a finished wall with no hot work and no damaged coating to repair.

Adjustable on site. The rail end can sit a little short of the bottom of the socket before the screw is tightened, so small errors in measuring are taken up.

Where it is used

The wall ends of stair and ramp handrails, rails along corridors and loading bays, clothes, display and towel rails, guard rails that finish against a building, and tube shelving and frames fixed back to a wall.

Specifications

Wall flange or base flange?

This flange is designed to end a rail at a wall. It can stand a light, non load-bearing frame on the floor, but it is not recommended as a base plate for a guard rail post or for anything that takes a load. For posts fixed to the floor, use the 48.3mm oval base flange.

Which 48.3mm fitting goes where

How many do you need?

One wall flange for every rail end that meets a wall. A handrail running between two walls needs two. A rail fixed to one wall and ending on a post needs one flange and one elbow. Long rails between walls also need support part way, such as posts or brackets, about every 1.5 to 2 metres.

Choosing the right size

Key clamps are sized by the tube's outside diameter. 48.3mm is standard scaffold tube, often sold as 1½" or 40mm nominal bore. Measure across the tube before ordering: this fitting will not grip 42.4mm or 60.3mm tube. The same galvanised fitting is made for 26.9mm, 33.7mm, 42.4mm and 60.3mm tube.

Fitting and care

Cut the rail end square and deburr it. Hold the flange against the wall at the rail height, mark the four holes and drill them, then fix the plate with screws and plugs or anchors to suit the wall. Push the rail into the socket, set it level and tighten the grub screw firmly with a 5/16" hex key. Check the screw after the first week and once a year, and 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 rail kit, call 01744 520 110 or email sales@industrialsuppliesco.co.uk and we will confirm availability and delivery before you order.