Buster + Punch Thumbturn Lock - Linear Knurl

The Quiet Twist Before You Lock the Door

Finer and more restrained than our Cross Knurl thumbturn, this one is cut with a linear knurl and built from solid metal, designed to be touched dozens of times a day without ever feeling flimsy.

Choose Your Finish

Linear Knurl's fine ridges give a more subtle grip than Cross Knurl. Brass warms up a bathroom door, Steel stays cool and neutral, and Black recedes against a dark painted door.

How It Works

This thumbturn has an architectural 4mm thick rose and installs onto a lockset or deadbolt latch at 27mm, 38mm or 41.5mm centre distance, working with tubular deadbolt latches or mortise locks. It fits doors from 40mm to 58mm thick with the supplied fixings and 5mm square spindle.

Where It Works Best

Designed for privacy on internal bathroom and toilet doors rather than as a keyed lock, and intended to pair with matching Linear door handles.

Made By Buster + Punch

Before starting Buster + Punch in 2013, Massimo Buster Minale trained and worked as an architect, including time at Foster and Partners, while spending his evenings building motorbikes in a Shoreditch garage. Door hardware became one of the earliest ranges the brand built out, and the thinking behind it was simple: hardware that gets handled every day should feel like it, in solid metal rather than hollow plastic.

Good To Know

• Rose thickness: 4mm
• Centre distances: 27mm, 38mm or 41.5mm
• Fits doors: 40mm to 58mm thick with supplied fixings
• Compatible with tubular deadbolt latches or mortise locks
• Included: 1 x thumbturn lock set, 1 x 5mm square spindle
• Care: wipe with a damp, lint free cloth and avoid chemical cleaners, finishes age naturally over time
• Suitable for internal bathroom and toilet doors
• Warranty: two year Buster + Punch manufacturer's warranty as standard

Questions People Ask

What is the difference between this and the Cross Knurl version?
Both work the same way, the difference is the knurl pattern. This one has a finer linear knurl rather than the deeper cross knurl grid.

What centre distances does this cover?
27mm, 38mm or 41.5mm, so it should work with most existing lockset or deadbolt latch setups.

Minimum Width 5.69cm x Minimum Height 5.69cm x External Depth 2.92cm
Max Size of Door Fitting: 5.79cm
Rose Diameter: 5.69cm
Diameter of the Bar: 1.88cm
Spindle Dimension: 0.5 x 0.5cm

We offer free standard delivery on orders within the UK Mainland* (an additional fee applies for the Isle of Wight, the Isle of Man, the Scottish Isles, parts of Scotland, Northern Ireland, the Republic of Ireland, the Channel Isles and International).

*Collingwood orders under £150 incur a delivery fee of £9.95 inc. VAT.
*Any order under £49 incurs a delivery fee of £9.95.