1-3/4" Backset Customizable Square Thumbturn Privacy Bolt

Thumbturn Privacy Bolt – 1-3/4" Backset for Narrow Stile Doors
Modern Square Rosette | Solid Brass Construction

This thumbturn privacy bolt is built for narrow stile doors, providing a compact, reliable privacy solution where a smaller backset is needed. With a 1-3/4" backset, this set delivers secure function and a clean, modern appearance without sacrificing performance.

To lock, turn the interior thumbturn. To unlock, simply turn it back. In an emergency, the bolt can be released from the outside using the coin-release mechanism provided.

Design Details

• Rosette Style: Square Rosette – solid brass with squared edges for a modern, understated profile

• Thumbturn Style Shown: Rectangular – flat and simple, pairing cleanly with the square rosette

Other Available Thumbturn Styles

• Rectangular Step – adds stepped architectural detailing

• Arched – smooth half-moon shape for a softer look

• Arched Step – combines curved shape with stepped edge for classic appeal

Finish Shown: Flat Black

Available Trim Finishes:
Polished Brass Lifetime, Satin Brass, French Antique, Oil-Rubbed Bronze, Polished Nickel Lifetime, Satin Nickel, Pewter, Flat Black, Polished Chrome, and Polished Brass Unlacquered (which will age naturally to a soft patina)

Mortise Bolt Finishes:
Polished Brass, Oil-Rubbed Bronze, Flat Black, Satin Stainless Steel – we’ll supply the closest match to your selected trim

Specifications

• Door Thickness: 1-3/8" to 2-3/4" (Call for thinner doors)

• Mortise Size (edge of door): 5/8" W x 1-1/4" H x 2-5/16" D

• Bore Size (through face of door): 5/8"

• Faceplate: 2-1/4" H x 5/8" W

• Strikeplate: 2-3/4" H x 7/8" W

• Square Rosette: 1-1/2" H x 1-1/2" W x 1/4" D

Set Includes

Interior rosette with thumbturn, exterior rosette with coin release, mortise bolt, mortise bolt hub, mortise bolt faceplate, strikeplate, emergency release coin, and matching screws.

Other Styles

Our 1-3/4" backset thumbturn privacy bolts are available in with disk, square, watford, and wilshire rosettes with choice of thumbturn and in pre-configured classic and modern styles.

Need help choosing a finish or thumbturn style?
Call us at 215-247-0945. We're always happy to assist with your order.