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Description
A satin 316 stainless flat end cap that closes the open end of 42.4mm slotted handrail tube on a frameless glass balustrade. The flat 42.4mm face sits flush with the rail, and a horseshoe-shaped spigot pushes into the tube. The spigot is open at the bottom so it clears the glass and the rail's internal channel, and an M6 threaded boss at the top lets you lock the cap in place with a screw. The price shown is for one cap, minimum order 10.

What you get
| Sold as | One flat end cap, minimum order 10 |
|---|---|
| Fits | 42.4 x 1.5mm round slotted handrail tube |
| Not included | The M6 fixing screw, the slotted tube and the glass gasket |
Why choose this end cap
Made for slotted rail. A plain end cap will not go into slotted tube, because the slot and internal channel are in the way. This cap's spigot is shaped like a horseshoe, open at the bottom, so it slides in over the glass and the channel and still fills the rail end.
A clean, flat finish. The 42.4mm face matches the rail, so the end of the handrail looks neat and flat with only a fine joint line.
Locks in place. The M6 threaded boss at the top of the spigot takes a screw through the top of the rail, so the cap cannot be pulled out or knocked loose.
316 for outdoors. 316 stainless contains molybdenum, which gives it much better resistance to salt and chlorine than 304. It suits balconies, terraces and pool surrounds, matching the 316 slotted tube.
Specifications
| Material | 316 stainless steel, satin finish |
|---|---|
| Face | 42.4mm round, 4mm thick, flat |
| Overall length | 34mm (face plus spigot) |
| Spigot | 39.3mm across, 31.5mm deep from its top, 2mm wall, open at the bottom |
| Locking boss | 10mm wide, 7.8mm deep, M6 thread |
| Fits | 42.4 x 1.5mm slotted tube |
| Weight | About 0.09 kg |
Is this the right part?
| Your job | Choose |
|---|---|
| Closing the end of 42.4mm slotted rail over glass | This flat end cap |
| The slotted handrail tube itself | 316 slotted tube 42.4 x 1.5mm, 3m |
| Closing plain 42.4 x 2.0mm round tube or posts | 316 flat end cap for 42.4 x 2.0mm tube |
Fitting
Cut the slotted rail square and deburr the end. Trim the glass gasket back so it stops short of the spigot. Push the cap in with the open side of the spigot facing down over the glass, until the face sits flush. To lock it, mark the boss position on top of the rail, drill through the rail and fix with an M6 stainless screw into the boss. You can also bond it with a stainless-compatible adhesive.
Care
Outdoors, rinse with fresh water and wipe every few weeks, more often near the sea or a pool, so salt and chlorine do not leave brown tea staining. Use warm soapy water; avoid chlorine bleach, wire wool and scouring pads.
Frequently asked questions
Is the price for one cap?
Yes, one cap. The minimum order is 10.
Will it fit plain round tube?
It is made for 42.4mm slotted tube. For plain 42.4 x 2.0mm tube, use the plain flat end cap linked above.
Is the screw included?
No. Use an M6 stainless screw of a length to suit, or bond the cap in instead.
Ordering and delivery
Order online with Express UK Delivery to your site and same-day dispatch on orders before 2pm, Monday to Friday. For a full glass balustrade with slotted rail, gaskets and end caps, call 01744 520 110 or email sales@industrialsuppliesco.co.uk and we will confirm the parts and delivery before you order.
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About Us
Suppliers to Ministry of Defence, NATO, US Airforce and Most UK Councils, Schools, Universities, Hospitals & various Government departments
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Minimum order 10 pcs







