M5 Socket Head Cap Screws - China Manufacturer of Precision Hardware
We are a China-based Manufacturer of industrial fasteners, and we proudly offer M5 Socket Head Cap Screws to meet tough machine-building demands. For B2B buyers, reliability and repeatable performance matters—and that's exactly what we deliver. Our M5 Socket Head Cap Screws are produced from high-grade alloy steel or stainless steel, heat treated for strength, and finished with black oxide, zinc, or passivated coatings. We can supply standard grades or tailor lengths, thread pitch, and head styles to your drawings. With tight tolerances and rigorous quality checks, you can count on consistent fit every time. We keep a robust stock, shorten lead times, and provide certificates of compliance and test reports to speed your QA process. Whether your project is automation, electronics, or heavy machinery, our technical team supports spec confirmation, proto samples, and bulk production. Reach out for a competitive quote and reliable supply of M5 Socket Head Cap Screws today.
M5 Socket Head Cap Screws Manufacturer Dominates
In the world of fasteners, M5 socket head cap screws have become indispensable for compact assemblies in electronics, automation, and machinery. A leading manufacturer commands a dominant share by combining precise metrology, scalable production, and rigorous quality control—from raw material selection and heat treatment to thread rolling and surface finishing. With options in alloy steel and stainless steel, and finishes such as zinc plating or black oxide, this segment delivers consistent strength, corrosion resistance, and dimensional stability across high-volume runs. For global buyers, this means reliable supply chains, predictable lead times, and traceable quality across batches. A dominant producer leverages advanced CNC machining, automated inspection, and ISO-compliant processes to meet tight tolerances and fast ramp-ups. Partners across industries—from consumer electronics to automotive components—benefit from scalable MOQs, transparent pricing, and responsive support that keeps development on schedule.
| Specification | Typical Value | Remarks |
|---|---|---|
| Screw designation | M5 × 6–40 mm (common lengths: 6, 8, 10, 12, 16, 20, 25, 30, 35, 40) | Metric coarse thread; widely used length range |
| Nominal thread diameter | 5.00 mm | ISO metric designation |
| Thread pitch | 0.8 mm (standard coarse) | Per ISO metric coarse thread series |
| Material options | Alloy steel (quenched & tempered); Stainless (A2/A4) | Alloy for high strength; stainless for corrosion resistance |
| Mechanical grade | 8.8, 10.9, 12.9 | Select grade according to load and safety factor |
| Minimum tensile strength | 8.8 ≈ 800 MPa; 10.9 ≈ 1040 MPa; 12.9 ≈ 1220 MPa | Values approximate per ISO metric bolt grades |
| Hardness (approx.) | 8.8: ~24–32 HRC; 10.9: ~30–38 HRC; 12.9: ~36–44 HRC | Post heat-treatment hardness ranges |
| Head type & dimensions | Socket head cap; head dia ≈ 8.5–9.0 mm; head height ≈ 4.5–5.5 mm | Typical per ISO 4762 / DIN 912-style geometry |
| Internal hex (Allen) size | 3.0 mm | Standard for M5 socket head screws |
| Thread length (typical) | Varies by L; many fully threaded ≤20 mm; partial thread common on longer lengths | Depends on application and standard blanking practices |
| Surface finishes | Bright (uncoated), black oxide, zinc (clear/yellow), nickel plating, passivated stainless | Finish affects corrosion resistance and appearance |
| Corrosion resistance (qualitative) | Bright steel: low; Zinc plated: moderate; A2 stainless: good; A4 stainless: excellent | Choose based on expected environment |
| Typical applications | Machine assembly, automation equipment, tooling, fixtures, dies, electronic enclosures | Widely used where compact head & high clamping force required |
| Standards & references | ISO 4762 / DIN 912 / EN ISO 4762 (metric socket head cap screw standards) | Follow dimensional and mechanical property clauses in the standards |
| Manufacturing methods | Cold heading + thread rolling; secondary machining for tight tolerance parts; quench & temper heat treatment; surface finishing | Common industrial production flow |
| Typical mass (example) | M5 × 20 mm ≈ 1.8 g per piece (approx.) | Useful for shipping/weight calculations; mass varies with material and finish |
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M5 Socket Head Cap Screws Leads the Global Market From Concept to Delivery
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