Captive Screw Manufacturer|Non-Detachable Fastening from the Source Factory
Captive screws: a retaining ring or circlip keeps the screw attached to the panel, so after removal it still hangs on the panel. Enclosure, cabinet-door and cover servicing becomes fast, with no dropped or lost screws and no damaged threads. Hand-driven or tool-driven, with custom options.
Why Choose YF ZCJ Captive Screws
Stays attached
Retaining ring limits travel — screw and panel never separate
Faster servicing
Doors and covers open quickly, no need to hold the screw
No lost parts
No loose screws on the floor, meeting cleanroom and work-at-height rules
Thread protection
The screw stays in place, so threaded holes are never left exposed
Multiple drives
Phillips, hex socket, knurled hand-drive and more
Panel-thickness matched
Crimp length matched to panel thickness for a firm setting
Captive Screw Series
Captive Screw Selection Guide
1. By panel thickness
Crimp length must match the mounting panel thickness — send the thickness and we recommend the model.
2. By operation
For tool-free use choose a knurled hand-drive head; where torque locking matters choose hex socket or Phillips.
3. By environment
Standard zinc-plated steel; stainless for humid conditions; add nylon washers where electrical isolation is needed.
4. Installation
Set by crimping through the panel or clinching into the hole — one operation, no welding.
5. Maintenance advantage
During service the screw stays fixed to the door, so one person can work unaided.
Typical Applications
Enclosures and cabinets
Server racks and control-cabinet doors
Telecom equipment
Tool-free servicing of base-station covers
Medical equipment
Fast access to equipment housings
Rail transit
On-board equipment bay doors
Power distribution
Distribution cabinet panel fixing
Industrial equipment
Guards and inspection plates
Captive Screw FAQ
Q1How does a captive screw stay attached?
The shank carries a retaining ring or circlip; once unscrewed it is trapped on the far side of the panel and cannot come free.
Q2How much pull-out load can it take?
Retention depends on crimp length and panel thickness and can be checked against the application; test reports are available.
Q3What if my panel thickness is non-standard?
Send the actual thickness and we will match the crimp length or customize it so the setting stays firm without play.
Q4Can it be hand-tightened?
Knurled heads can be hand-tightened; where clamp load matters, tighten with a tool to torque.
Q5Are non-standard lengths available?
Yes — shank length, head style and material can all be customized with fast sampling.
Q6How much more does it cost than a plain screw?
The unit price is slightly higher, but lost-part, service-time and thread-repair costs disappear, so total cost is lower.
Need the full catalog or custom captive screws to drawing?
Send specifications, drawings or application details for selection advice, test reports and a fast quote — direct to our sales lead.
