I act as a dedicated sourcing partner in China, delivering hex head sems screws that stand up to demanding industrial use. As a direct Manufacturer, I handle every step from material selection to packing, ensuring consistant threadforms, corrosion resistance, and accurate load ratings. Our hex head sems screws suit assembly lines, machinery, automotive, and construction projects. I offer customization in finishes, coatings (zinc, black oxide), and heat-treat grades to fit your exact application. You’ll get traceability, bulk pricing, and on-time delivery. I provide full product specs, certificates, and QA data, plus flexible MOQs and rapid reorders. For samples or technical data, just ask and I’ll reply quickly. B2B buyers value supplier stability and service; I’ve built a China-based manufacturing process that scales with your project, ensuring reliable supply of hex head sems screws to meet your production deadlines.
Global buyers sourcing hex head screws and SEMS screws know that factory-direct supply is more than a price advantage—it’s a route to consistent quality and reliable delivery. When material selection, heat treatment, surface finishing, and rigorous inspection are aligned with your application, a direct partnership reduces variance and shortens lead times, delivering predictable value across your assembly lines. From concept to delivery, top suppliers translate drawings into manufacturable parts: engineering reviews, prototype validation, tooling, and scalable production. Choose options across stainless, alloy, and carbon steels, with finishes such as zinc, black oxide, electroless nickel, or passivation. Strict in-process QA and precise documentation ensure traceability, while flexible packaging and logistics support global scheduling, minimizing disruption for international procurement teams.
| Part_ID | Material | Diameter_mm | Thread_Spec | Length_mm | Head_Type | Finish | Grade | Coating | Tensile_Strength_MPa | Hardness_HRC | Standard | Process_Steps | Lead_Time_days | Dimensional_Tolerance_mm | QA_Pass_Rate_percent | Origin_Country | Last_QA_Date | Notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HEX-01 | Alloy Steel AISI 8740 | 6 | M6x1.0 | 20 | Hex Head | Zinc Plated | Grade 8.8 | Zinc | 800 | 36 | DIN 933 / ISO 4017 | Cold Heading; Thread Rolling; CNC Milling; Polishing; Zinc Plating; QA | 5 | ±0.05 | 99.7 | China | 2026-07-20 | N/A |
| HEX-02 | Stainless Steel AISI 304 | 8 | M8x1.25 | 25 | Hex Head | Passivated | 304 SS | None | 515 | 20 | DIN 931 / ISO 4017 | Cold Heading; Thread Rolling; CNC; Deburring; Passivation; QA | 6 | ±0.03 | 99.5 | Japan | 2026-07-12 | Corrosion resistance |
| HEX-03 | Alloy Steel AISI 4140 | 10 | M10x1.5 | 40 | Hex Head | Black Oxide | 8.8 | Black Oxide | 900 | 38 | DIN 933 | Cold Heading; Thread Rolling; Quench & Temper; Black Oxide; QA | 7 | ±0.05 | 99.3 | Germany | 2026-07-08 | High strength |
| HEX-04 | Alloy Steel AISI 8620 | 12 | M12x1.75 | 50 | Hex Head | Zinc Plated | 10.9 | Zinc | 980 | 39 | ISO 898-1 | Cold Heading; Thread Rolling; Heat Treatment; Zinc; QA | 8 | ±0.04 | 99.6 | USA | 2026-07-04 | Military grade |
| HEX-05 | Stainless Steel AISI 316 | 4 | M4x0.7 | 16 | Hex Head | Passivated | 316 | None | 520 | 18 | ISO 3506 | Cold Heading; Thread Rolling; CNC; Deburring; Passivation; QA | 4 | ±0.02 | 99.8 | Italy | 2026-07-15 | Food-grade |
| HEX-06 | Brass | 5 | M5x0.8 | 18 | Hex Head | Electropolish | 8.8 | None | 300 | 25 | ISO 3506 | Casting; Deburring; Threading; Polishing; QA | 3 | ±0.03 | 99.1 | Mexico | 2026-07-03 | Conductive |
| HEX-07 | Titanium Alloy Ti-6Al-4V | 6 | M6x1.0 | 22 | Hex Head | Anodized | 5 | Anodized | 950 | 33 | ASTM F136 | Forging; Threading; CNC; Anodizing; QA | 10 | ±0.02 | 99.4 | USA | 2026-07-25 | High strength, low weight |
| HEX-08 | Steel Alloy | 14 | M14x2.0 | 60 | Hex Head | Zinc Nickel | 10.9 | Zn-Ni | 1120 | 42 | DIN 6915 | Cold Heading; Thread Rolling; Heat Treatment; Zinc-Nickel; QA | 9 | ±0.05 | 98.9 | China | 2026-07-18 | High load assemblies |