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Need help? Call Us 01744 520 110 or email sales@industrialsuppliesco.co.uk
Description
This D type clamp holds a glass panel up to 12mm thick to a square post, box section or wall, ready for you to powder coat to match your steelwork. It is cast zinc alloy in a raw, uncoated finish, 63 x 45 x 29mm, with a flat back, rubber pads for 8mm, 10mm and 12mm glass and an optional safety pin. Two countersunk screws close the two halves round the glass edge. The price shown is for one clamp, with a minimum order of 8, enough for two panels.
Why use this clamp
Made to be coated. The raw zinc body takes powder coat or paint well, so the clamps can go through the same coating run as your steel posts and rails and finish in exactly the same colour: black, anthracite, white or any RAL shade. That is far neater than stainless clamps on painted steel.
Takes 12mm glass. The full-size D body grips 8mm, 10mm or 12mm toughened glass with the matching rubbers, so it suits wider panels and busier stairs.
Flat back for square posts and walls. Square and rectangular posts, box section, flat bar and walls need a flat-back clamp. A curved-back clamp would rock and never hold the glass straight.
Safety pin option. The pin sits inside the clamp and passes through a hole in the glass, so the panel cannot slide out even if a screw works loose. Use it where the glass is drilled for it, or leave it out.
Where it is used
Painted or powder-coated steel balustrades with square or box-section posts on stairs, landings and mezzanine floors; glass infill in coloured steel frames; and glass screens fixed to walls.
Specifications
| What you get | One clamp: front and back halves, two closing screws, rubber pads for 8mm, 10mm and 12mm glass, safety pin. Minimum order 8 |
|---|---|
| Size | 63 x 45 x 29mm |
| Suits | Flat post, box section or wall (flat back) |
| Glass thickness | 8mm, 10mm or 12mm |
| Material | Zinc alloy |
| Finish | Raw, uncoated. Suitable for powder coating |
| Safety pin | Included, optional (needs a hole in the glass) |
| Fixing to the post | Not supplied. Usually one M8 screw into a drilled and tapped post |
| Weight | About 0.24 kg |
Which glass clamp to choose
| You need | Clamp |
|---|---|
| Zinc D clamp, flat post or wall | This clamp |
| Zinc D clamp, 42.4mm round post | Zinc D clamp for 42.4mm |
| Zinc D clamp, 48.3mm round post | Zinc D clamp for 48.3mm |
| Smaller square shape in zinc, 8-10mm glass | Zinc square clamp, flat back |
| Outdoors or near the sea, no coating | 316 stainless D clamp, flat back |
| Black finish, ready to fit | Black D clamp, flat back |
How many do you need?
Most panels are held by four clamps, two on each post, set about 150 to 200mm in from the top and bottom of the glass. A run of three panels between four posts takes 12. A tall or wide panel may need a third clamp each side; follow your glass supplier's or designer's layout.
Choosing the right option
Use this flat-back clamp on any face at least 45mm wide. For round tube, choose the zinc D clamp curved for 42.4mm or 48.3mm. Fit the rubbers to match your glass: 8mm, 10mm or 12mm. If you want the safety pin, order the glass with holes drilled before toughening. Choose zinc when the clamps will be coated to match painted steel; choose 316 stainless for a bare metal finish or an uncoated rail outdoors.
Fitting and care
Coat the clamps before fitting; keep coating out of the glass slot and screw threads, or remove it there, so the rubbers seat properly. Mark the clamp heights on every post with a level line, drill and tap the post, fix the back half, then fit the rubber pads for your glass. Set the glass on packers, fit the pin if used, offer up the front half and tighten the two countersunk screws evenly until the glass is gripped firmly, without overtightening. Use toughened safety glass only. Clean with warm soapy water and a soft cloth.
Frequently asked questions
Is the price for one clamp?
Yes. The price is for one complete clamp with both halves, two screws, the rubber pads and the safety pin. The minimum order is 8, which holds two panels.
Can I use it outdoors?
Only once it is coated. Raw zinc dulls and forms a white bloom in rain and damp air. Powder coat it for outdoor use, or choose the 316 stainless D clamp with a flat back, which needs no coating.
Is it already painted?
No. It comes raw, in a matt grey cast finish, ready for powder coating or painting to the colour you want.
Is the safety pin included?
Yes. It is optional: use it only if your glass has a hole drilled for it, made before the glass is toughened.
Will it fit a round post?
No. The back is flat. Use the zinc D clamp curved for 42.4mm or 48.3mm tube.
Ordering and delivery
Order 8 or more online with Express UK Delivery and same-day dispatch on orders before 2pm, Monday to Friday. For a full balustrade, call 01744 520 110 or email sales@industrialsuppliesco.co.uk and we will check quantities 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 8 pcs