A Guide To Choose The Right Tubular Lock

In need of a new door latch but not sure how to choose the right door latch for your door? The tubular latch is a simple closing device commonly used on internal doors where no lock is needed. The Tubular latch is an evolution from a Mortise Lock, downsized so that it can be fitted with much less effort, and with minimal drilling and cutting to the door required.

The Size Of The Tubular Lock

The tubular latch is a generally used item and is a cornerstone of modern ironmongery. Available in different sizes, shapes and variations to provide a variety of latch sizes to suit your doors. Generally, it is manufactured with a mild steel latch body with a short faceplate, brass or steel tongue and an 8mm follower.

Most commonly supplied with square edges to the faceplate and strike plate, however also available with the radius edges that is usually preferred by the manufacturing joiners who will use a router to pre-cut the holes in the door, for us mere mortals who use a chisel than the square edges are easier.

There is a wide choice of finishes available for the strike plates and forend meaning that latches can be coordinated perfectly with your door hinges and handles. The cheaper economy latches are generally either Electro brass plated or nickel-plated. The better quality latches have a range of finishes in polished brass, satin steel, polished steel, power coat black and Florentine bronze.

Back set Sizes And Latch Length

The tubular lock manufacturer in India provides you with latches that are available in different sizes. The tubular latch sizes come in five industry-standard lengths, 64, 76, 102, 127, 152 mm. These are the measurements of the overall size of the latch case, each of these sizes has its unique Backseat measurement. The backseat is the distance from the faceplate of the latch to the centre of the follower. The size of the Backset is important because it will determine where your handle or knob sits on the face of the doors. The industry standard Backset sizes are 45, 56, 82, 107, 130mm.

An easy way to choose that latch you need is to measure from the edge of your door to the centre of your door stile. Choose the Backset that is closest to this measurement and the handles. However, the shorter 64mm overall size should be used where the door is glazed, to minimise the risk of hitting the glass rebates when drilling to fit the latch.

Bolt Through Fixing Holes

Most tubular latches, except the economy range, are supplied with Bolt Through Fixing holes. These are the holes in the latch case located on either side of the follower. These fixing holes are designed to allow the fixing bolts, that are often supplied with the door handles to pass through the door and the latch mechanism so that the handles can be bolted together. The hole at the rear of the latch is just a cutaway to the read of the case.

Choose to deal with the best tubular lock manufacturer in India and get the one that gets the best for your use.