Shims – Essential Thin Tools for Smooth Lockwork

When you're rekeying cylinders, servicing latch mechanisms, or performing non-destructive entry, quality shims are indispensable. Keyless City’s Shims collection includes thin but critical tools—curved shims, latch shims, and replacement shim sets—designed to make your job smooth, fast, and cable-free. These shims are essential for lock servicing, door latch alignment, pin adjustments, and keyless entry work. Built tough and shaped precisely, these shims ensure you can separate latch mechanisms, retract deadbolts, or fine-tune cylinders without drilling or damaging hardware.

Collection Overview

The collection features four high-quality shim options:

1. 30-Pack of Basic Curved Shims (MK320) — a bulk set for van or shop stocking.
2. LAB LSM0V25 Curved Shims (25 vials) — premium curved shims for tighter spaces.
3. Lock Monkey MK241 Set of 4 Replacement Shims with Case — reusable, labeled tools for various latch and cylinder work.
4. Latch Shim with Handle (MK242) — ergonomic tool for smooth latch mechanism manipulation.
   
   

These shims are compatible with common lock types—mortise, cylindrical knob, lever—and assist with non-destructive entry, latch retraction, and lock disassembly. Constructed to withstand repeated use, their thin stainless or spring-steel profiles make cylinder servicing and door maintenance cleaner and more efficient than traditional screwdrivers or improvised tools.

30-Pack of Basic Curved Shims (MK320)

The 30-Pack of Basic Curved Shims (MK320) provides volume and value for mobile locksmiths. These basic curved shims slip between door and frame, help retract latch bolts, and assist in emergency entry when keys are unavailable. Their curved profile is perfect for contoured latch faces, reducing friction and tamping risks during shimming. Stocking a stack in your charge kit means you’re always ready for on-the-go non-destructive entries.

Durability comes from hardened stainless steel that resists bending. Each shim maintains a consistent thinness—ideal for tight operations on mortise locks, cylinder rekeys, and door hardware adjustments. Packed tightly, these shims stay organized and ready for immediate use. Reliable, reusable, and essential for breaking-in or repositioning latches without marring hardware—it’s a quick-access tool that pays for itself.

LAB LSM0V25 Curved Shims (25 Vial) 

For professionals who demand precision, the LAB LSM0V25 Curved Shims come in a labeled vial—ideal for quick selection on-site. Built by LAB, these shims are measured to tolerances, ensuring consistent thickness for delicate work. Whether you’re separating cylinder detainers or aligning internal latch components, the fine curve fits snugly against contoured surfaces.

These shims are especially useful in mortise lock servicing—allowing you to open the case, retract the latch, and make precise adjustments. The vial makes inventory control easy, reducing misplaced tools, and the curve reduces friction when sliding between housing and frame. Designed for locksmiths who care about details, the LSM0V25 delivers high performance in a small package.

Set of 4 Replacement Shims w/ Case (MK241) 

The MK241 Set of 4 Replacement Shims with Case includes multiple sizes in a sturdy organizer—a go-to kit for door hardware repairs. Each labeled shim matches a particular thickness or curve, allowing you to select the right tool for latch retirement, cylinder servicing, or pad rekeying.

Constructed from hardened, fatigue-resistant metal, these shims flex just enough for access but resist permanent deformation. The compact case keeps them safe in your pocket or kit—ideal for trucks, vans, or belt clips. Whether you’re adjusting a misaligned latch, testing latch bolt function after pin changes, or extracting drum components, these shims make disassembly and reassembly more efficient. Reliable and reusable—just what a professional locksmith expects.

Latch Shim w/ Handle (MK242) 

When ergonomics matter, the Latch Shim with Handle (MK242) stands out. Featuring a built-in handle, this shim offers better leverage and comfort during repetitive latch operations—perfect for long jobs or multiple door entries. Insert the curved shim between strike plate and latch, then apply gentle, controlled pressure with the handle to extract the latch bolt smoothly.

The handle eliminates driver-hand fatigue, preserves tool control, and keeps fingers away from sharp edges. Great for mortise lock alignments, latch repairs, and door closers, it helps you maintain professionalism under awkward conditions. Made from hardened metal with a comfortable grip, this tool is ideal for locksmith workshops and mobile setups. An ergonomic boost that professionals will reach for first.

Featured Tools Summary 

• 30‑Pack Basic Curved Shims (MK320) – bulk value for rapid jobs
• LAB LSM0V25 Curved Shims (25 vial) – precision lab-quality set
• Lock Monkey MK241 4‑Shim Set w/ Case – labeled, reusable shims for varied jobs
• Latch Shim w/ Handle (MK242) – ergonomic power tool for latch work
  
  

All remain in stock, ready to ship same day before 3 PM CST, backed by beginner-friendly tech support for locksmith professionals.

Why This Collection Stands Out 

Shims might be small, but they make big differences—non-destructive lock entry, cylinder alignment, mortise servicing, and door latch maintenance all rely on high-quality shims. Keyless City’s collection is curated for usability: bulk packs, precision lab sets, labeled replacements, and ergonomic handles. Each tool is designed to resist bending, slip through latch gaps, and ride flush against curved hardware surfaces. With consistent stock and robust material (stainless or spring steel), these shims work day-in and day-out. Having the right shim on hand means no drilling, no damage, and no callbacks—just clean, quick jobs that enhance your professional reputation.

Related Collections You’ll Want 

Enhance your shim-assisted workflows with complementary products:

• Pinning Kits & Rekey Tools – finish cylinder work after latch manipulation
• Locks & Cylinders – replace damaged hardware during maintenance
• Mechanical & Transponder Keys – supply accurate blades after rekeying
• Pick Tools & Decoders – non-destructive lock entry before extracting latches
• Key Machine Accessories – cut fresh blanks 
  
  

Why Locksmiths Trust Keyless City 

Locksmiths rely on Keyless City for shims because we deliver:

• Free shipping over $150 – load up without freight worry
• Same-day shipping before 3 PM CST – don’t wait on parts
• Consistent stock – ensure availability of shims each kit
• Quality materials – hardened steel that won’t warp under stress
• Labeled kits and vials – saves time on busy jobs
• Price-matching guarantee – get the best deal
• Tax-exempt ordering – for licensed operations
• 30‑day easy returns – confidence in your tools
• Live tech support – call or chat with us
  
  

It’s precise tools, real support, and workflow-backed reliability—exactly what pros need.

When precision meets daily demand, Shims become your secret weapon. From basic latch entries to lab-grade cylinder servicing and ergonomic latch adjustments, this collection supports every stage of on-site locksmithing. With reliable inventory, pro-grade materials, and options built for comfort, Keyless City’s shim tools empower you to work faster, cleaner, and with confidence. Keep a selection of shims in your van or bag—unlock, align, and rekey without damage or downtime. Let these small but powerful tools reflect big-time craftsmanship on every job.