M6 Hex Phillips Head Combination Screw with Flat Washer | 10B21 Boron Steel | Natural Zinc-Nickel Alloy - Aoyi Screw

Aoyi Screw offers high-precision M6 Zinc Nickel Hex Phillips Combination Screws (SEMS Screws) engineered for high-performance fastening in demanding environments. As an ISO9001 certified manufacturer, we provide durable, high-tensile solutions designed to replace traditional loose screw-and-washer assemblies.

This 3-in-1 combination screw features a robust hex head with a precision Phillips drive and a pre-assembled spring/flat washer. This design boosts installation efficiency by 50% while ensuring maximum anti-vibration performance. Our specialized Natural Zinc-Nickel coating provides industry-leading corrosion resistance (up to 1000 hours salt spray test), outperforming standard zinc plating in outdoor and automotive applications.

We specialize in OEM/ODM custom bolt production, offering various sizes (M3-M12), materials (10B21, SS304), and surface treatments tailored to your industrial automation or automotive projects.

Applications

Aoyi Screw M6 Combination Screws are engineered for high-precision and heavy-duty environments:

Industrial Automation&Robotics:Ideal for securing robotic arms,conveyor systems,and automated assembly lines where constant vibration requires superior loosening resistance.

Automotive&Telematics:Perfect for automotive electronic control units(ECU),sensor housings,and chassis components exposed to road salt and engine heat.

Electrical Control Systems:Widely used in electrical enclosures,power distribution cabinets,and circuit breaker assemblies to ensure stable electrical grounding and mechanical integrity.

Outdoor Energy Infrastructure:Suitable for solar mounting brackets,wind turbine control panels,and outdoor telecommunication base stations thanks to the 1000H salt spray resistance.

Smart Manufacturing:Specialized for integrated smart home appliances and industrial 4.0 machinery systems that demand high-efficiency pre-assembled fasteners.

Why Choose Aoyi Screw as Your Fastener Partner?

ISO 9001 Certified Manufacturing:We operate a fully controlled production line with rigorous quality management systems,ensuring every batch meets international standards(DIN,ISO,JIS,ANSI).

Superior Material&Coating:We specialize in high-performance materials like 10B21 Boron Steel and advanced finishes like Zinc-Nickel Alloy(1000H+Salt Spray Test)to solve your toughest corrosion and strength challenges.

Advanced Testing Lab:Our in-house laboratory is equipped with salt spray testers,hardness testers,and optical screening machines to ensure Zero-Defect quality before shipping.

Direct Factory Pricing:By eliminating middlemen,we provide competitive factory-direct quotes without compromising on material integrity or precision.

Global Supply Experience:With years of experience serving the automotive and automation industries worldwide,we understand the strict technical and documentation requirements of global procurement.

Professional OEM/ODM Customization Services

At Aoyi Screw,we understand that standard fasteners don't always fit specialized projects.We offer comprehensive customization to meet your unique engineering requirements:

Custom Dimensions:Tailored thread lengths,head diameters,and specialized shank designs(including Stepped Shanks and Shoulder Sleeves).

Material Selection:Choose from Carbon Steel(4.8,8.8,10.9,12.9),Stainless Steel(304,316),Brass,or Aluminum.

Advanced Surface Treatments:Beyond standard zinc,we offer Geomet,Dacromet,Zinc-Nickel Alloy,Black Oxide,and Passivation for extreme environments.

Fast Prototyping:Our engineering team can analyze your drawings(PDF,CAD,or STEP)and provide rapid samples for your quality validation.

Specialized SEMS Assemblies:Custom combination screws with specific washer types(Internal/External tooth,Flat,or Square washers)to optimize your assembly line efficiency.

F&Q

Q1:What is the main advantage of using a 3-in-1 Combination Screw?

A:The primary benefit is Assembly Efficiency.By pre-assembling the spring and flat washers,we eliminate the need for manual assembly of loose components.This can reduce labor time by up to 50%on automation and automotive assembly lines while preventing the risk of missing washers.

Q2:Why choose Zinc-Nickel Alloy coating instead of standard Zinc plating?

A:Zinc-Nickel Alloy is a premium finish that offers extreme corrosion resistance(1000H+Salt Spray Test).It also maintains its protective properties at high temperatures(up to 200°C),making it the ideal choice for under-the-hood automotive sensors and outdoor industrial components.

Q3:Is the 10B21 Boron Steel material suitable for high-torque applications?

A:Yes,10B21 Boron Steel is a high-grade material specifically chosen for its excellent hardenability and toughness.When heat-treated,it achieves a stable 8.8 or 10.9-grade strength,ensuring that the Hex Phillips head will not strip or break under professional-grade torque requirements.

Q4:Can Aoyi Screw provide a custom M6 Combination Screw based on my drawings?

A:Absolutely.As an OEM/ODM manufacturer,we can customize the thread length,shank diameter,washer outer diameter,and even the drive type.We provide a technical drawing for approval before mass production to ensure 100%compatibility with your project.

Q5:Are your combination screws compliant with international environmental standards?

A:Yes,all our Zinc-Nickel combination screws are RoHS and REACH compliant.We understand the strict requirements of the electronics and automotive industries and provide material certifications(MTC)and environmental compliance reports with every batch.

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Unsure if this is the right fit? Read our latest technical guide: What Industries Use Hex Phillips Head Screws The Most?

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