banner (1)

Captive Screws M4 - Wholesale Suppliers & Manufacturers

I offer Captive Screws M4 for fast, secure panel assembly. For Wholesale buyers and Manufacturers, these screws deliver reliable retention without losing fasteners on the line. I designed them with captive heads that stay in the panel when removed, easing maintenance and assembly. You can choose stainless steel A2 for corrosion resistance or zinc alloy for cost efficiency, with options for different head styles. The M4 thread fits most enclosures and meets common aerospace/electrical standards. In bulk, I provide scalable pricing and consistent quality, tailored packaging for Manufacturers. My lead times are short and I ship worldwide to meet your project deadlines. The Captive Screws M4 reduce downtime, improve throughput, and simplify field service. If you need a dependable captive fastener for enclosures, I’m here to support your production lines and stock levels.

Hot Selling Product

Captive Screws M4 Industry Giant Global Reach

Captive screws in M4 size enable secure, fast, maintenance-free assemblies for electronic enclosures and compact equipment. The captive design keeps the screw attached to the panel, preventing loss and speeding installation. With standard M4 threads and several grip lengths, they offer reliable pull-out resistance and vibration tolerance. Materials range from stainless steel to zinc-plated steel, with finishes to suit environments. This makes M4 captive screws a practical choice for electronics, industrial gear, and automotive modules. Our global reach supports steady supply to diverse markets through scalable production, flexible minimums, and multiple shipping hubs. We provide traceability, RoHS and REACH compliance, and ISO 9001 quality management. From design input to head styles and packaging, we align with your supply chain goals. Quick samples, datasheets, and batch testing aid fast qualification and audits. A robust manufacturing footprint and continuous improvement program sustain consistent quality and on-time delivery worldwide.

{ Captive Screws M4 Industry Giant Global Reach }

Dimension Specification Notes
Product family Captive Screws M4 size family
Diameter M4 (4.0 mm) Standard size for M4 captive screws
Thread pitch 0.7 mm Metric coarse pitch for M4 series
Length range 6–20 mm Common lengths for electronics enclosure assemblies
Head options Button head, Pan head, Countersunk Variants by application
Drive type Hex socket (Allen), Torx Mixed drive options available
Material Stainless steel 304/316 Corrosion resistance across environments
Finish Zinc-nickel plating, Passivation, Black oxide Optional protective finishes
Tolerance ±0.1 mm Critical assemblies require tight control
Hardness HRC 18–30 Suitable for general fastening needs
Certifications RoHS, REACH, ISO 9001 Compliance ensures quality management
Operating temperature -60°C to 200°C Stainless variants cover high-temp ranges
End-use sectors Electronics, Automotive, Medical, Aerospace Common industries served
Lead time 2–4 weeks Standard production lead time
Annual capacity 180–240 million pcs Global production scale
Packaging options Bulk, Tape & Reel Packaging varies by downstream assembly needs
Global reach distribution Asia 56%; Europe 24%; Americas 20% Regional demand shares

Related Products

banner (2)

Captive Screws M4 Delivers Unmatched Quality Exceeds Industry Benchmarks

Quality Score Trend Across Production Batches

This data visualization presents a longitudinal view of quality performance across twelve successive production batches. The primary line, labeled “Quality Score,” represents the percentage of items passing our rigorous quality checks for each batch. The dataset was collected during routine QA sampling and reflects factors such as dimensional accuracy, material integrity, and functional fit. A secondary dashed line marks the industry benchmark at 90%, providing a reference point for expected performance under standard process controls. As the batches progress, there is a clear upward trajectory in the Quality Score, starting from 78% in Batch 1 and reaching 100% by Batch 12. The initial lag indicates early-stage variability, potentially due to setup conditions, supplier tolerance fluctuations, or calibration drift. The subsequent steady rise demonstrates improved process stability, better calibration, and tighter adherence to manufacturing SOPs. The convergence toward and eventual surpassing of the benchmark implies that the quality management system is effectively reducing process variation and improving repeatability. This visualization can guide decision-makers in several ways. First, it highlights the impact of targeted interventions—such as supplier qualification, KPI-driven maintenance, and enhanced in-process inspections—on overall quality. Second, it supports a data-driven approach to capacity planning, suggesting that the current process is capable of maintaining high quality once mature. Third, the chart can serve as a basis for continuous improvement initiatives, encouraging deeper analysis of the specific batches where gains occurred and identifying any remaining outliers. Going forward, it would be prudent to extend the dataset with longer time horizons, incorporate additional metrics (e.g., defect type breakdown, cycle time, and personnel shifts), and apply statistical process control rules to distinguish common-cause from special-cause variation. This will enable proactive quality assurance and help sustain unmatched performance relative to industry standards.

Top Selling Products