Captive Screws
Anti Loss Captive Screw Floating Self Clinching Fastener Stainless Steel Carbon Steel for Industrial Cabinet Automotive Equipment
1. Product Overview
Our captive screw is a specially designed anti loss fastener widely used for equipment panels that require frequent disassembly and inspection. With optimized floating and self clinching structure the screw will stay connected to the panel even after being fully loosened which completely solves the common problem of screw loss in daily operation and maintenance. We provide diversified materials head types drive styles and standard metric specifications to match electronic communication industrial automation new energy automotive marine and outdoor equipment industries. All products are manufactured in strict accordance with international industrial standards with stable mechanical performance long service life and strong environmental adaptability.
2. Core Features & Competitive Advantages
- Reliable Anti Loss Design: Integrated floating structure keeps the screw fixed on the panel permanently no missing parts during disassembly maintenance and transportation greatly saving working time.
- Superior Material Selection: Available in 304 and 316 stainless steel high strength carbon steel and alloy steel. Stainless steel materials deliver excellent rust resistance salt spray resistance and corrosion resistance suitable for humid outdoor and marine environments. Carbon steel products reach grade 8.8 10.9 and 12.9 with high tensile strength to withstand long term vibration and heavy load.
- Rich Structural & Style Options: Equipped with pan head button head countersunk head and cap head matched with hex socket Phillips slotted and Torx drives. Multiple styles meet anti tampering limited installation space and general assembly demands.
- Premium Surface Treatment: Adopt black oxide black phosphate zinc plating zinc flake and passivation processing. The surface is wear resistant anti galling and anti oxidation effectively extend the service cycle of fasteners.
- Strong Compatibility: Support knurled press fit spring loaded retaining washer and other structures. Standard thread and fine pitch thread are optional easy to install and match various equipment shells and metal panels.
- Strict Quality Inspection: Each product passes hardness test thread precision test vibration test and corrosion test to ensure stable performance in harsh industrial working conditions.
3. Product Specifications & Technical Parameters
| Item | Technical Details |
| Product Name | Captive Screw |
| Main Raw Material | 304 Stainless Steel 316 Stainless Steel Carbon Steel Alloy Steel |
| Strength Grade | 8.8 10.9 12.9 |
| Thread Standard | Metric Standard Metric Fine Pitch |
| Common Sizes | M2 M2.5 M3 M4 M5 M6 M8 M10 M12 |
| Head Type | Pan Head Button Head Countersunk Head Hex Socket Cap Head |
| Drive Type | Hex Socket Phillips Slotted Torx T6 T8 T10 T15 T20 T25 T30 |
| Surface Finish | Black Oxide Black Phosphate Zinc Plated Zinc Flake Black Passivated |
| Structural Type | Self Clinching Floating Spring Loaded Press Fit Non Removable |
| Main Performance | Corrosion Resistant Vibration Resistant Weather Resistant |
4. Application Scenarios & Practical Cases
Our captive screw has wide application range and strong practicability covering multiple mainstream industrial fields:
- Electronic Communication Industry: Applied to server racks network cabinets communication base station equipment power distribution boxes and control cabinets convenient for daily debugging and maintenance.
- New Energy Industry: Suitable for wind turbine control cabinets solar inverter enclosures electric vehicle charging stations and battery cabinets adapting to outdoor complex weather and vibration environment.
- Industrial Automation: Matched with PLC control panels frequency converters robotic equipment laser cutting machines and CNC equipment housings stable for long term high intensity industrial operation.
- Automotive & Transportation: Used for vehicle dashboard shells on board electronic housings railway signaling equipment and transit vehicle accessories with outstanding anti vibration performance.
- Marine Industry: 316 marine grade captive screw is used for marine navigation radar and ship electronic equipment with excellent salt spray and seawater corrosion resistance.
- Outdoor Intelligent Equipment: Ideal for outdoor LED display screens kiosk enclosures and IoT device shells resistant to temperature change and rain erosion.
A large number of industrial equipment manufacturers have adopted our captive screws for mass assembly. After long term field use the product greatly reduces the loss rate of fasteners and is highly recognized by global buyers.
5. Solutions & Product Value
Industry Pain Points Solved
- Ordinary standard screws are easy to fall off and lose during equipment maintenance increasing replacement cost and delaying work progress.
- Common fasteners cannot resist corrosion and continuous vibration in harsh environments resulting in loose connection and short service life.
- Single style screws cannot meet the diverse demands of different equipment for installation space anti tampering and load bearing.
Core Product Value
- Cost Saving: Reduce the purchase and replacement quantity of lost screws effectively cut enterprise maintenance cost and management cost.
- Efficiency Improvement: Anti loss integrated structure realizes quick disassembly and assembly shorten equipment inspection and maintenance cycle.
- Operation Safety: Non removable and anti loosening design avoid equipment failure caused by loose fasteners and guarantee stable operation of industrial equipment.
- One Stop Procurement: Complete specifications materials and styles support one stop purchasing simplify the customer supply chain management.
6. Purchase Information & After-sales Support
- Custom Service: We support non standard size special surface treatment and personalized structure customization according to customer drawings and samples.
- Order & Delivery: Flexible minimum order quantity sufficient regular stock for fast delivery customized products will be arranged for production in a short time.
- Quality Assurance: Complete product inspection reports can be provided all products enjoy reliable after sales quality tracking service.
- Technical Support: Professional engineering team provides free product selection guidance and installation technical support for all customers.
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