M10x65 Socket Head Cap Screw, SCM435 Alloy Steel, Grade 10.9

In precision mechanical assemblies,bolt failure is rarely a result of material quality alone;it is often a matter of thread pitch precision and heat treatment consistency.

Our M10x65 socket head cap screw is engineered specifically for high-load applications.By utilizing SCM435 alloy steel(a chromium-molybdenum alloy),we achieve a superior Grade 10.9 tensile strength,providing a high yield point that resists plastic deformation under extreme vibration.Unlike standard mild steel screws,our proprietary quenching and tempering process ensures a uniform hardness core,preventing the"brittle fracture"common in low-cost,mass-produced fasteners.

Technical Data 

Why This Specification Matters for Your Project:

- CNC&Mold Die Assembly:The internal hex socket allows for deep-hole,flush-mounted installation,minimizing the surface profile while maintaining high torque preload.

- Vibration-Critical Applications:The combination of SCM435 steel and exact thread-to-shank ratios ensures the fastener maintains clamping force even in high-cycle vibration environments(e.g.,automotive transmissions or automated arm pivots).

- Corrosion Mitigation:The environmentally friendly color zinc plating provides a protective layer that exceeds typical moisture-exposure requirements in factory floor environments.

Industry Applications

F&Q

Q1:What are the key mechanical advantages of using SCM435 alloy steel over standard carbon steel?

SCM435(Chromium-Molybdenum alloy)offers superior hardenability and fatigue resistance.When heat-treated to a 10.9 grade,it provides a significantly higher yield strength-to-weight ratio compared to standard Grade 4.8 or 8.8 carbon steel.This ensures that your mechanical joints do not loosen or snap under high-frequency vibration or extreme torque loads.

Q2:Can I get a Mill Test Report(MTR)to verify the tensile strength and chemical composition?

Absolutely.We maintain full traceability for every batch of ALSA1170002.We provide a comprehensive Quality Inspection Report that includes chemical analysis(carbon,manganese,chromium,molybdenum content)and mechanical property test results(tensile strength,proof load,and hardness testing)to ensure full compliance with ISO 898-1 standards.

Q3:How should I determine if this'Coarse Thread'specification is suitable for my assembly?

Our coarse thread design is optimized for general-purpose high-strength fastening.It offers superior shear resistance when tapping into softer materials like aluminum or cast iron,as the larger thread profile provides a greater engagement area.If your application involves high-precision,fine-adjustment assemblies,please contact our engineering team to discuss fine-pitch alternatives.

Q4:Is the color zinc plating durable enough for outdoor or humid industrial environments?

Our environmentally friendly color zinc plating(chromate conversion coating)is engineered to pass a minimum of 48-96 hours of neutral salt spray testing(ASTM B117).While it provides excellent protection for factory environments and standard machinery,if your application is in a highly corrosive marine or chemical environment,we recommend our optional zinc-nickel or black oxide coating for enhanced longevity.

Q5:We have a specific assembly requirement—can you customize the shank length or head tolerance?

Yes.While ALSA1170002 comes with a standard S=32mm shank,we are a direct manufacturing factory,not a trading company.We offer OEM/ODM services to adjust shank lengths,thread pitch,or even secondary machining operations(such as drilling safety wire holes)to meet your specific mechanical engineering drawings.Simply attach your blueprint,and we will provide a prototype estimate within 24 hours.

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