Best Door Lock Replacement Parts Under $100 (2026)
We ranked parts by a value score combining material/build quality, compatibility specs (backset, keyed-alike, handedness), functionality, and price under $100
The Verdict
- Best Overall: A29 Heavy Duty Cast Iron Horizontal Rim Lock — Rim-lock option: heavy cast-iron construction for traditional rim-mount installations and visible durability
- Best Value: RiKey Security 4x Tubular Lock Cylinders with 12 Keys, keyed alike — Tubular cylinders pack: four keyed-alike tubular cylinders ideal for securing multiple storage units with one key
Top Picks
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1
Best Overall A29 Heavy Duty Cast Iron Horizontal Rim Lock
Rim-lock option: heavy cast-iron construction for traditional rim-mount installations and visible durability
A heavy-duty cast iron rim lock with a black powder-coated finish. Provides a historic look and is easily reversible for door handedness. Customers note good fit and value, with some latch quality concerns
- cast iron durability
- black powder coat finish
- handmade, authentic look
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2
A29 Heavy Duty Rim Lock - Backset 2 3/8 in, Cast Iron, Black
Rim-lock option: cast-iron with a reversible design and standard 2 3/8" backset for retrofit flexibility
A29 vertical rim lock set in heavy-duty cast iron with a black powder-coated finish. Easy reversible for right or left doors; durability and vintage look noted. Customer insight: fits handmade doors and offers good value
- heavy-duty cast iron
- black powder coat finish
- easy reversible for handedness
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3
Kwikset Key Blanks Box 250 by JMA
Key blanks box: bulk Kwikset brass blanks suited for locksmiths and high-volume keying needs
Durable brass Kwikset key blanks in a JMA box for versatile use. High-quality construction offers reliable function, with an elegant brass finish. Customer feedback notes solid quality but mixed opinions on fit
- durable brass material
- reliable performance
- elegant brass finish
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4
Door Security Bar by Doorricade for inward doors (up to 32")
Security bar: inward-door security bar providing added reinforcement and improved door stability for interior doors
Durable door security bar with solid metal construction and stainless-steel hinge brackets for inward-opening doors. Provides high resistance when installed across door width; includes clear instructions. Customer insight notes easy installation and strong security
- sturdy stainless-steel hinge brackets
- solid metal bar with high resistance
- wall stud support on both sides
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5
Best Value RiKey Security 4x Tubular Lock Cylinders with 12 Keys, keyed alike
Tubular cylinders pack: four keyed-alike tubular cylinders ideal for securing multiple storage units with one key
Tubular lock cylinders with self-locking tech. Includes 4 cylinders and 12 matching tubular keys. Customers note quality and good fit for storage units
- tubular lock with self-locking feature
- keyed-alike, 4 cylinders with 12 keys
- compatible with storage units and roll-up doors
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6
AST double door security lockout device for french doors
Double-door lockout device: designed for French doors to prevent entry while compatible with standard knobsets
Sturdy double door lockout device made of diecast aluminum with a unibody design and 3 keys included. Provides extra security for knobset and handleset; easy to install. Customers say it’s effective for French doors and double doors, though some note lockability can be challenging
- diecast aluminum alloy build
- includes 3 keys
- adjustable to fit multiple door types
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7
Alsecure Mortise Door Lock for aluminum storefronts 1-1/8 backset
Mortise lock: compact mortise solution for aluminum storefront doors using a 1-1/8" backset for commercial fitments
Mortise door lock cylinder for storefront/aluminum doors. Solid brass cylinder offers reliability and durability; easy to install and fits well, based on customer feedback
- solid brass cylinder
- rust-proof and durable
- designed for commercial storefront doors
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8
Seco-Larm Mini No-Cut Electric Door Strike, indoor use
Electric strike: mini no-cut indoor strike for cylindrical locks that eases retrofit without major door modification
Electronic door strike that converts cylindrical locks to access-controlled locking. Fail-secure operation keeps door locked if power is lost. Includes no-cut stainless steel keeper and low-cut strike plates; compatible with various lock setups and optional digital keypad
- fail-secure operation
- includes stainless steel keeper
- works with most cylindrical locks
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9
RiKey 5x Storage Cylinder Locks (Keyed Alike) with 3 Tubular Keys, 19mm
Storage cylinders set: multiple keyed-alike storage cylinders tailored for rental or storage unit applications
Tubular lock set with 5 cylinders and 15 tubular keys. Self-locking technology allows locking with or without keys. Customers note good quality and a perfect fit for storage units
- 5 cylinders keyed alike
- 3 tubular keys per cylinder set
- self-locking technology
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10
Storefront door mortise lock cylinder with thumbturn, aluminum cam
Storefront cylinder: mortise cylinder with thumbturn and aluminum cam for single-door commercial access control
Mortise lock cylinder with thumbturn and Adams Rite style cam in aluminum. Easy to install and fits glass doors. One customer notes it’s perfect for commercial use
- easy installation
- glass-door compatibility
- Adams Rite style cam