Spring Latches
PSM Spring Latches are a simple reliable means of fastening removable assemblies when used with stud or peg.
Advantages
> Firm reliable grip
> Removes need for time-consuming screw fasteners
> Allows quick, easy access for inspection, repair purposes
> Assembled after finishing operations
Material
CS60, CS70 carbon steel, austempered
Method of Assembly
Squeeze fastener together with fingers or hand tool and insert through pre-stamped hole, when released the spring latch opens firmly to sides of hole.
When specifying, please state:
- Quantity
- Prefix (CBSL)
- Part No.
- Finish code (e.g. 2000 CBSL-0872-13)
Key Features
- Low in-place cost due to rapid installation and minimal parts
Eliminates the need for threads, screws, or locking hardware for captive panels
- Resistant to vibration and loosening due to spring action
- Can be embedded after finishing operations (painting, coating)
- Provides firm retention yet allows easy disassembly when needed
- Self-retaining: once installed, the latch holds itself in the panel hole via its spring force
Design & Specification Guidelines
Material & Finish
Spring latches are typically manufactured from spring steel (e.g. CS60 / CS70) and heat treated for resilience. They are often plated (e.g. zinc) or passivated to resist corrosion, especially when used with plastic or coated panels.
Hole & Panel Preparation
- The hole into which the spring latch seats must match the latch’s tolerance specification (neither too loose nor too tight) so that the spring legs can deflect and grip.
- Burrs or sharp edges should be avoided as they may catch or bend the latch during insertion.
- The panel thickness must be within the latch’s design range; too thin and the latch may over-deflect, too thick and it may not fully engage.
Installation Method
- Squeeze the spring latch slightly to reduce its width, insert it into the panel hole, and release it so its spring legs expand and grip.
- Ensure the latch is oriented so that its spring force applies across the correct direction (i.e. aligned with the stud or peg).
- Avoid twisting or side load during insertion to prevent distortion or permanent deformation of the spring legs.
Dimensional Data & Sizes
The ideal fastener for use on access doors or removable panels. Self-retaining it provides a simple cost saving method of assembly.
Dimensions in millimetres
Recommended Installation Torque
Enhance Your Assembly with Our Spring Latches
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