Architectural Quality Double Sprung Tubular Mortice Latch - CE / UKCA Marked - Fire Rated - Certifire Approved - Satin Stainless Steel

• Satin stainless steel heavy duty double sprung tubular latches.

• CE Marked / UKCA Marked.

• Fire tested to BS EN 1634-1 suitable for use on 30 minute and 60 minute FD30 and FD 60 fire doors.

• Tested to BS EN 12209-2003 the standard for mechanical locks and latches.

• Architectural finish - brushed satin stainless steel forend and strike plates ideal for use with satin chrome, satin nickel and brushed stainless steel door handles.

• Supplied with black back box for fitting behind the strike plate in the door frame.

• Heavy duty latch ideal for use with door handles fitted in residential, commercial and public buildings.

• Available in 64mm or 76mm lengths.

• Bolt through fixing holes at 38mm apart on the 76mm latch only - allows this latch to work in conjunction with bolt through round rose door handles.

• Can be used with a rebate kit for double rebated doors.

• This latch has a heavy weight spring making it ideal for use with sprung or un-sprung door handles.

Operation

• Latch is withdrawn via a door handle from either side of the door (handles sold separately).

Features 

• Double sprung - heavy weight springing with lightly sprung latch bolt (allows the door to latch into place with little friction).

• Solid brass guided latch.

• Bolt through facility for bolt together fixing lever handles and accessories at 38mm centres - (please not the 64mm latch does not have bolt through holes).

• 8mm x 8mm spindle follower (to suit standard UK size spindles).

• Latch can be reversed on site by twisting the latch through 180 degrees.

• Reversible frame mounted strike plate.

• Supplied with black back box for fitting behind the strike plate in the door frame.

• Suitable for use on internal doors in residential, commercial or public buildings.

Finish

• Satin stainless steel - (brushed finish).

 

Alternative Finishes Available

• Polished stainless steel.

• PVD brass

• Florentine bronze

Dimensions

Available in four different sizes

• 20857.1 - 64mm - NOTE THIS LATCH DOES NOT HAVE BOLT HOLES
• 20857.2 - 76mm

 

	20857.1	20857.2	Dimension On Diagram
Overall Case Depth	64mm	76mm	A
Backset (Distance To centre Of Spindle Hole)	44mm	57mm	B
Case Height	23mm	23mm	C
Forend - Height (H) x Width (W)	60mm x 25mm	60mm x 25mm	D
Strike Plate - Height (H) x Width (W)	65mm x 25mm	65mm x 25mm	E

Rebate Kit For Double Rebated Doors

• 40828.1 - 13mm satin stainless steel wrap round design rebate kit for use with the heavy duty CE Marked / UKCA Marked tubular latches.