316 Stainless Steel D Type Glass Clamp 63 x 45mm for Flat Post, 8-12mm Glass

This D clamp holds a glass panel to a square post, box section or wall outdoors, where salt air, rain and pool water would mark lesser steel. It is grade 316 (marine grade) stainless steel with a satin brushed finish, 63 x 45 x 30mm, with a flat back, rubber pads for 8mm, 10mm and 12mm glass and an optional safety pin. Two countersunk screws close the 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

Grade 316 for outdoor and coastal work. 316 stainless contains molybdenum, which resists the chlorides in sea air, pool water and de-icing salt far better than 304. On a roof terrace, balcony or pool surround it keeps its finish with simple cleaning.

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.

Takes 12mm glass. The full-size D clamp grips 8mm, 10mm or 12mm toughened glass with the matching rubbers.

Safety pin option. The pin 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

Glass balustrades on square-post roof terraces, balconies, decks and stairs; pool and hot tub screens; glass infill in box-section frames; and glass screens fixed to walls outdoors.

Specifications

Which glass clamp to choose

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. Tall or wide panels 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. Fit the rubber pads to match your glass: 8mm, 10mm or 12mm. If you want the safety pin, order the glass with holes drilled before toughening, matched to the pin. Choose 316 for outdoors, coastal sites and pools; 304 is fine for dry interiors.

Fitting and care

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. Wipe with warm soapy water; on the coast, a fresh-water rinse every few weeks keeps the satin finish bright.

Frequently asked questions

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.