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Description
For an indoor handrail or guard rail in 42.4mm tube, this small plate still gives you room to line up with your anchors. It is 100mm across with three curved slots rather than fixed round holes. Weld it to the foot of the post, which drops into a 42.6mm bore, then bolt it to the floor. It is 304 stainless steel and 17mm tall overall. The price shown is for one plate, with a minimum order of 15. Tube and fixings are not included.
Why choose this plate
The right grade for dry, indoor work. 304 is the standard stainless for internal stairs, landings, corridors and warehouses, where salt and chlorides are not a concern. There is no need to pay for 316 on a rail that stays indoors. For the coast, de-icing salt or regular wash-downs, choose the 316 version instead.
Slots that help with a stray anchor. Each slot is 20mm long and 11mm wide, on a 76mm circle. An M10 fixing has about 9mm of movement along it, which helps when a drilled hole has had to dodge a bar in the slab or a floor joint. The plate turns slightly around the post and does not move across, so careful set-out still matters.
Small enough for a landing or walkway edge. At 100mm across it takes up little floor, yet a standard 20mm M10 washer still sits clear of the 49.5mm collar and just inside the edge of the plate. Six ribs, each 4mm wide, brace the collar.
Any 42.4mm tube fits. The bore is 0.2mm over the tube and runs right through, so wall thickness makes no difference and there is very little gap to fill at the weld.
Supplied raw. It comes as cast with a machined rim and collar face, so you can blend and finish it with the tube after welding.
No load rating is published for this plate. If your rail has to meet a set loading, have the post, plate, anchors and floor checked by whoever signs off the design.
Where it is used
Use it for handrails on internal stairs and landings in offices, schools and public buildings, for guard rails along pedestrian walkways in dry warehouses and factories, and for rails in corridors and lobbies. It can also go outside in sheltered positions well away from salt.
Specifications
| What you get | One base plate, minimum order 15 |
|---|---|
| Material | 304 stainless steel |
| Finish | Raw: as cast, with machined rim and collar face |
| Attaches by | Welding to the tube |
| Suits tube | 42.4mm outside diameter |
| Bore | 42.6mm, right through |
| Plate diameter | 100mm |
| Overall height | 17mm |
| Flange thickness | 8mm |
| Collar diameter | 49.5mm |
| Fixing slots | 3 curved slots, 20mm x 11mm |
| Slot circle | 76mm |
| Ribs | 6, each 4mm wide |
| Weight | 0.25 kg |
| Fixings | Not included |
| Load rating | Not published for this plate |
Is this the right plate?
Two things decide it: your tube size and where the rail will stand. This plate only takes 42.4mm tube, and a 48.3mm tube will not go into the bore.
| Your situation | Choose |
|---|---|
| Indoors or dry, tight space, some adjustment needed | This 304 slotted plate |
| Near the sea, around road salt or washed down often | 316 version of this plate |
| Anchors set out accurately, no adjustment needed | 304 100mm plate with round holes |
| There is room for a wider foot | 316 120mm slotted plate |
| You want to hide the plate and bolts | 304 105mm satin cover plate, threaded down the tube before the top rail goes on. Clearance is about 1mm with M10 hex bolts and washers, so avoid stud anchors under it. |
Fitting and care
Check the tube is square in the bore, then weld round the collar. TIG with a 308L filler is the usual choice for 304. Clean off any heat tint afterwards for a tidy finish that resists staining.
Use M10 fixings in the slots, with stainless anchors suited to your floor. A2 stainless matches this grade indoors. Offer your washer and socket up to the plate before you drill, and mark through the middle of each slot to keep adjustment either way. If the floor is not flat, bed the plate on non-shrink grout.
Frequently asked questions
Is the price for one plate?
Yes, the price is for one plate, with a minimum order of 15. For a bigger job, call us for a quantity price.
Can I use it outdoors?
In a sheltered spot away from salt, yes, though it may need occasional cleaning to stay bright. Near the sea or on salted steps and paths, choose the 316 version.
How much movement do the slots give?
About 9mm for an M10 fixing along each 20mm slot. Because the slots are curved, that movement turns the plate rather than shifting it.
Can I fit it without welding?
No. There are no grub screws or socket to grip the tube, so the weld is the only joint. Without welding gear on site, have the posts made up in a workshop and bring them complete.
How many fixings do I need?
Three per plate, one M10 fixing in each slot. Fixings are not included.
Ordering and delivery
Order 15 or more online, with Express UK Delivery to your site and same-day dispatch on orders before 2pm, Monday to Friday. For a full stair or walkway run, call 01744 520 110 or email sales@industrialsuppliesco.co.uk and we will confirm availability and delivery before you order.
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Suppliers to Ministry of Defence, NATO, US Airforce and Most UK Councils, Schools, Universities, Hospitals & various Government departments
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Minimum order 15 pcs