Industrial Products - 456, 456R and 360 Flush Bolts

History

The Brio range of 456 flush bolts have over a number of years evolved and expanded to keep pace with the growth of Weatherfold folding door hardware and as advanced as the range is there is still room for further improvement.

This technical bulletin details stage 1 of a series of changes and introductions that will make the range the most comprehensive in the country.

The primary drivers of change that has shaped the new range are a new lock design, a smaller option for windows, improved corrosion resistance, colour coordination with other door hardware and price positioning.

Specification 456 (square top) and 456R (round top)

In bullet point form the new range can claim the following:

• New lock design on all locking models

• New Finishes

• Stainless steel shoot bolt

• Radius stainless steel keeper

• All new packaging

• Improved Corrosion resistance to the Polished Look Brass finish.

An essential feature of a locking flush bolt used in folding door systems is the key must not sustain or cause damage when the doors are operated or folded at 90 degrees. This can be achieved in a multitude of ways. The jewellers lock option is one way, whereby the shoot bolt cannot be retracted with the key and barrel in place or a more simple approach is to make the key small enough so that it does not protrude past the operating knob. The new design uses the latter of the two options mentioned.

The new lockable 456E, 456RE and 360E all share a common locking mechanism. A metal die cast barrel, body and a neat new branded key, centrally positioned that oozes quality and sports the famous Brio name.

New Finishes

If the previous finishes in Satin Chrome, Polished Chrome and Polished Brass were impressive. Take a close look at the new products, satin chrome has moved aside to be replaced by Satin Nickel. The new finish has taken out the blue tint present in chrome and added a hint of yellow, making it almost indistinguishable from natural satin stainless steel. Likewise, the same changes apply to the high polished finish with Polished Nickel replacing polished Chrome.

Brio was the first to introduce Titanium Gold as an option on Stainless steel when Weatherfold Coastal was launched. Two years later Titanium gold will appear for the first time on the new brass bodied 456, 456R and 360 flush bolts. Traditionally a lacquered finish is the more popular finish on polished brass products due to costs but it lacks long term corrosion resistance. The new titanium gold plating provides the finish that can truly be used on Coastal application.

Stainless Steel Keepers and Shoot Bolts.

Changing the finishes to the body also opened the way to the introduction of solid stainless steel shoot bolts, knobs and keepers. All the shoot bolts are now made from either satin polished or titanium gold plated stainless steel. The new keeper, now is also made from stainless steel, features radius ends as standard to accommodate modern machining practices.

Packaging

To protect the bolts each are now individually packed in there own polystyrene lined carton with vision window. The vision window provides instant product recognition.

Specification 360 and 360E

Brio 456 flush bolts have in the past been used for many window applications but it has been mentioned that it is oversized for the stile it is fitted to. So by popular demand the 360 non-locking and 360E locking join the range.

The smaller 360, available in round top only, shares many design features and benefits of its bigger brother but is sized at 110mm x 24mm x 9mm. The new 360 is fitted to the sash by just two screws that pass through the centre of the body and shoot bolt. To aid installation of the 360 series Brio are able to offer the new 'Router 360' cutter