Select region
English
English German Portuguese Spanish Russian
Talk to an Engineer
          Product Finder
          Leave Your Message
          Captive Panel Screw LPF31-32 (2).png
          Captive Panel Screw LPF31-32 (1).png
          LPF31-M3-30CN

          Low-profile design satisfies many functional and cosmetic requirements.

          Low-profile design satisfies many functional and cosmetic requirements.
          Convenient, large, slotted head for tool or finger operation.

          Installation:
          Must always be carried out using a squeeze action-nevr a shock loadPunch a hole in the metal sheet to the size recommended in our technical data tableDe-burring of the hole is not recommended.Apply pressure to the head of the fastener sufficient to totally embed the clinching ring aroundthe entire circumference and bring body in contact with the sheet.Insert fixing screw or bolt from side opposite to the fastener body.

          REQUEST SAMPLES
          TECHNICAL PARAMETER
          FAQ
          Thread Size M3x0.5
          Thread Code M3
          Screw Length Code 30 mm
          A Shank Max. 0.97 mm
          Min. Sheet Thickness 1 mm
          Hole Size in Sheet + 0.08
          		 5.5 mm
          C Max. 5.48 mm
          E ± 0.25 10.31 mm
          G ± 0.4 7.62 mm
          H ± 0.13 5.13 mm
          T1 Nom. 8.26 mm
          T2 Nom. 15.11 mm
          Min. Dist. Hole C/L to Edge 6.6 mm
          Material Retainer Aluminum
          Material Spring 300 Series Stainless Steel
          Screw Material Heat-Treated Carbon Steel
          Finish Spring Natural Finish
          Optional Finish Screw – Black NitrideRetainer – Black Nitride
          Retainer Finish Bright Nickel over Copper Flash
          Screw Finish Bright nickel over copper flash
          Installation Equipment/Method Self-Clinching
          Base Panel Material Aluminum, Steel
          Captive Panel Screw LPF31 data

            What is a captive Panel screw?

            Captive Panel Screws: Secure, Low-Profile Fastening for Panels & Enclosures

            A captive panel screw (also called a panel clinch fastener or captive screw) is a specialized fastener designed to remain securely attached to a panel or enclosure even when fully loosened. This prevents loss, improves assembly efficiency, and ensures screws are always available for maintenance.

            Key Features of Captive Panel Screws
            1. Permanent Attachment
            Stays clipped or threaded into the panel when unscrewed (won’t fall out).
            Ideal for frequent-access panels (e.g., electronics, automotive, aerospace).

            2. Low-Profile Knob Design
            Flush or slightly raised head for sleek, space-saving installations.
            Meets cosmetic and aerodynamic requirements.

            3. Spring-Loaded Options
            Automatically retracts or tensions for quick release and vibration resistance.

            4. Tool or Finger Operation
            Large slotted head or knurled knob for easy hand-tightening or screwdriver use.

            5. Material Options
            Aluminum, Stainless steel (corrosion-resistant) or brass (conductive, non-sparking).


            Why Use Captive Panel Screws?

            ✔ No Lost Screws – Saves time and frustration during maintenance.
            ✔ Vibration-Resistant – Spring-loaded versions resist loosening.
            ✔ Quick Access – Finger-operable for tool-free adjustments.
            ✔ Aesthetic & Functional – Low-profile designs blend seamlessly.


            Conclusion

            Captive panel screws are essential for secure, reusable, and user-friendly panel fastening in industries where reliability and convenience matter.