Marks 145m/10b Gate Lock Double Cylinder Dark Bronze

Product Description

The MARKS 145m/10b is a double cylinder gate lock designed for secure keyed operation on both sides of a gate or door. The unit functions as both a deadbolt and a deadlatch, requiring a key to retract the bolt from either face. Built around the Marks C keyway with a 6-pin cylinder, it delivers a higher level of pick resistance compared to standard 5-pin configurations. The 2-3/4 inch backset fits most standard gate hardware preparations. Finished in Dark Bronze (US10B/613E), it suits installations where a dark, oil-rubbed appearance is specified.

This lock is suited for residential and light commercial gate applications where keyed access control is required from both sides. It is commonly installed on wood or metal perimeter gates, fence access points, and secondary entry points where a thumb-turn would pose a security risk. For doors measuring 1-3/8 inches thick, the K1342 spacer rings are required and should be sourced separately. Licensed locksmiths and general contractors typically handle installation on gate hardware of this type.

Key Features

• Double cylinder operation: key required from both sides to retract bolt
• Functions as both a deadbolt and a deadlatch
• Marks C keyway with 6-pin cylinder for enhanced pick resistance
• 2-3/4 inch backset fits standard gate hardware preparations
• Dark Bronze finish (US10B/613E) for a consistent architectural appearance
• Compatible with K1342 spacer rings for 1-3/8 inch door thickness

Compatibility

Designed as a double cylinder gate lock replacement or new installation for gates and doors using a 2-3/4 inch backset preparation. For 1-3/8 inch doors, use spacer rings K1342.

Installation Notes

Installation is typically performed by a licensed locksmith or experienced contractor. Before installing or servicing, confirm the gate or door is fully closed and secured to prevent movement during work. Verify door or gate thickness prior to installation, as doors measuring 1-3/8 inches require the K1342 spacer rings. Double cylinder deadbolts are subject to local building and fire code restrictions in certain occupancy types; confirm compliance with applicable codes before installation.

Technical Specifications

• Keyway: Marks C
• Pin Count: 6 Pin
• Backset: 2-3/4 inches
• Finish: Dark Bronze (US10B/613E)
• Function: Deadbolt and Deadlatch, Double Cylinder

Standard Information

• Brand: MARKS
• Manufacturer Part Number: 145m/10b