When securing outdoor gates, double cylinder designs offer premium privacy and enhanced security by requiring a key from both sides. The following selection highlights durable, weather‑ready options from trusted brands. Each product features a pair of keyed cylinders, sturdy latches, and compatibility with common backsets to fit most gates and exterior doors. Use this guide to compare installation practicality, keying options, and build quality for durable gate security.
| Product | Brand | Backset / Door Thickness | Keying | Notes |
|---|---|---|---|---|
| Probrico Double Cylinder Deadbolt | Probrico | 2-3/8″ or 2-3/4″ | Individual keys, not keyed alike | |
| Rulart Double Keyed Deadbolt Lock | Rulart | 35 mm to 50 mm (1-3/8″–2″) | Keyed on both sides | |
| Rulart Double Keyed Deadbolt Lock (Silver) | Rulart | 35 mm to 50 mm (1-3/8″–2″) | Keyed on both sides | |
| Prime-Line U 9972 Jimmy-Resistant Deadlock | PRIME-LINE | 2-3/8″ or 2-3/4″ | Double cylinder | |
| Marks 22AC LHR Double Cylinder Gate Lock | Marks USA | 2-1/2″ backset | Double cylinder |
Probrico Double Cylinder Deadbolt
This Probrico double cylinder deadbolt provides independent keys for each side, ensuring robust security for exterior doors and gates. Each lock is designed to be locked or unlocked via a key on both sides, making it suitable for high‑security entry points. The deadbolt is ANSI Grade 3 rated and supports long durability through extensive cycle testing, meeting the needs of homes and small facilities that require reliable privacy and access control. The backset is adjustable to 60 mm (2-3/8″) or 70 mm (2-3/4″), accommodating common door preparations and thicknesses from 1-3/8″ to 1-3/4″.
Key features include individual keys for each lock, ensuring that no two installed locks share the same keying, which adds a layer of security against key sharing. The product is described as stable and durable with wide applicability, making it a strong choice for exterior doors, front gates, or interior rooms that require added privacy. The latch and mounting hardware conform to typical backset standards, easing installation for homeowners and professionals alike.
Double Keyed Deadbolt Lock – Rulart (Satin Stainless Steel)
The Rulart double keyed deadbolt on both sides offers a high level of security for gates and exterior entrances. The outer and inner keys both operate the deadbolt, with a solid steel latch designed to resist prying and forced entry. A copper cylinder keyhole adds an additional security layer, helping prevent tampering. Backset adjustments cover doors from 1-3/8″ to 2″ thick, and the latch plate accommodates 60 mm or 70 mm backsets. A note mentions that each lock uses a unique key and cannot be opened by other locks, reinforcing independent access control for multiple entry points.
Rulart emphasizes a high security profile with anti-pry and anti-collision features. The product is designed to fit a range of door thicknesses (35 mm–50 mm) and is appropriate for exterior doors, gates, or entryways where privacy and controlled access are required. The latch plate is non-removable, contributing to stable operation and long‑term reliability for outdoor conditions.
Rulart Double Keyed Deadbolt Lock – Silver (Single Cylinder)
This listing features a variation of the Rulart double keyed deadbolt with a focus on a silver finish and single cylinder configuration. While the caption notes it as single cylinder, the product page highlights robust security features like a copper cylinder keyhole, hardened latch materials, and a design that supports 35–50 mm door thickness with adjustable backset choices. It remains suitable for gates or exterior doors where privacy on entry is essential, and where a separate internal control might be preferred for some applications.
Prime-Line U 9972 Jimmy-Resistant Deadlock
Prime-Line’s U 9972 is a diecast, brass‑color double cylinder deadlock designed for hinged entry doors and other secure entry points. The diecast construction combined with steel components offers durability and a corrosion‑resistant finish suitable for outdoor environments. This unit provides dual key operation on both sides, enabling controlled access from inside and outside. While targeted at standard doors, it remains applicable to sturdy gates that require a classic, secure locking mechanism and are compatible with common backsets.
Design House Double Cylinder Deadbolt
The Design House double cylinder deadbolt offers a polished brass finish and versatility for left‑ or right‑hand doors. ANSI Grade 3 certification marks it as a solid residential security option. It supports both 2-3/4″ and 2-3/8″ backsets and fits doors from 1-3/8″ to 1-3/4″ thick. While primarily marketed for entry doors, its durable construction, classic appearance, and compatibility with common backset standards make it a suitable pick for exterior gates and doors requiring reliable double‑cylinder operation.
Marks 21AC RHR Double Cylinder Gate Lock Plate
Marks USA offers a double cylinder gate lock with a right-hand reverse orientation and a 2-1/2″ backset. This iron gate lock is designed for ornamental gate installations, providing dual‑cylinder security in a wrought‑iron style. The lock plate and backset orientation accommodate specific gate configurations, making it a strong candidate for entryways that emphasize both aesthetics and security. It is particularly well-suited for left- or right‑hand outward swinging gates where privacy and access control must be maintained from both sides.
Marks 22AC LHR Double Cylinder Iron Gate Lock
For ornamental iron gates, the Marks 22AC LHR double cylinder lock provides a left-hand reverse orientation with a 2-1/2″ backset. This lock is designed to withstand outdoor conditions while delivering dual‑key access from both sides. Its iron gate compatibility and decorative yet sturdy mechanism make it a practical choice for homeowners seeking a secure and visually compatible gate hardware upgrade. The double cylinder arrangement supports consistent privacy across multiple entry points for a cohesive security system on a property’s gates.
Buying Guide: Key Purchase Considerations for Double Cylinder Gate Locks
- Keying and access control: Double cylinder locks require keys on both sides, which improves security but may complicate access for maintenance or emergencies. Consider your typical entry routine and whether you’ll need spare keys for family members or service professionals.
- Backset compatibility: Most double cylinder locks support standard backsets (2-3/8″ or 2-3/4″). Confirm that the lock matches your gate or door’s backset and thickness to avoid installation issues.
- Durability and weather resistance: Outdoor gates demand weatherproof materials (diecast, brass, stainless steel) and rust‑resistant finishes. Look for hardened lattices, solid latches, and protective finishes suitable for your climate.
- Security features: Anti-pry and anti‑collision designs, copper cylinders, and sturdy latches contribute to resisting forced entry. Compare these features across models to select a lock that aligns with your security goals.
- Installation considerations: Some products require no-mortise installation and straightforward mounting, while others may demand more mechanical work. Verify backset dimensions, screw patterns, and plate compatibility with your gate framework.
- Key management: Since each lock can have its own unique key, plan for key storage and duplication practices. In multi-gate setups, ensure you track which key opens which lock to prevent confusion.
- Aesthetics and finish: For ornamental or visible gates, select a lock finish that complements your gate style (polished brass, satin stainless, or iron finishes).
- Certification and testing: ANSI Grade 3 or equivalent ratings provide a baseline for residential security. For high‑security gates, look for higher grade options or additional hardware like reinforced strike plates.