A heavy duty architectural pattern tubular latch for high-use internal doors in domestic and commercial settings. It features a heavy duty spring mechanism, making it suitable for use with sprung or unsprung door handles. With a 103mm case and 82.5mm backset, it’s ideal where a deeper handle position is required, while the Electro Brass / Satin Nickel finish combination helps match mixed ironmongery finishes. Key Features Heavy duty architectural tubular latch for high-use domestic and commercial internal doors. Heavy duty spring mechanism – suitable for use with sprung or unsprung door furniture. 103mm case with 82.5mm backset – deep backset format for a deeper handle position. Easily reversible latchbolt by turning the live latch/bolt – suitable for left or right hand doors. Fixings supplied to suit electro brass and satin nickel furniture. Bolt-through facility for lever handles with through-fixing screws. Supplied complete with dust box and fixing screws. Suitable for 30 & 60 minute fire doors. Corrosion rating 1 – recommended for clean, dry, low-humidity internal environments. Typical Applications High-traffic internal doors in offices, corridors and commercial premises. Domestic internal doors where a robust architectural latch is preferred. New-build and fit-out projects requiring a deep backset latch. Replacement of existing 103/82.5 architectural tubular latches. Specifications Latch type Heavy duty architectural tubular latch Product code 675673P Size 103mm case / 82.5mm backset Backset 82.5mm Lock case depth 103mm Lock case size (H × D) 22.5 × 103mm Lock case width 15mm Faceplate size (H × W) 60 × 25mm Faceplate type Square Keep size (H × W) 65 × 25mm Finish Electro Brass / Satin Nickel Material Steel Corrosion rating 1 – clean, dry & low humidity environments Fire rating 30 & 60 minutes Standard BS EN 12209:2003 Recommended screw size 4.0 × 25mm (8 × 1") Supplied with Latch, dust box, fixing screws Pack type TIMbag Pack quantity 1 Each