S-98093A634 M10 x 40 mm ASME B18.2.3.9M, SAE J1199 High-Strength Metric Class 10.9 Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional Load-Bearing Capacity: Class 10.9 strength grade and 150,000 psi tensile strength ensure reliable performance in high-stress applications, reducing the risk of fastener failure.
• Superior Corrosion Resistance: Black-phosphate steel coating provides durable protection against rust and environmental degradation, extending service life in harsh industrial conditions.
• Enhanced Grip and Stability: Integrated flange design distributes clamping force evenly, minimizing surface damage and preventing loosening under vibration.
• Optimized Thread Engagement: Coarse M10x1.5 thread with Class 6g fit allows for quick assembly and secure fastening, improving installation efficiency.
• High Durability and Wear Resistance: Rockwell C32 hardness ensures the screw maintains its structural integrity and thread form under repeated use and heavy loads.
• Broad Industrial Compliance: Meets ASME B18.2.3.9M standards and is RoHS 3 & REACH compliant, ensuring suitability for regulated and demanding environments.
• Versatile Fastening Solution: Partially threaded design and external hex drive enable precise torque application and are ideal for applications requiring controlled thread engagement.

Professional Applications & Engineering Value

This M10 hex head screw is engineered to address critical challenges in heavy-duty industrial fastening. The black-phosphate steel material offers excellent corrosion resistance, making it suitable for outdoor machinery, automotive assemblies, and construction equipment exposed to moisture and chemicals. The Class 10.9 high tensile strength and Rockwell C32 hardness ensure that the fastener can withstand extreme mechanical stresses without deforming, which is essential for structural applications and dynamic load-bearing components. The flange design eliminates the need for separate washers, reducing assembly time and providing a larger bearing surface to prevent pull-through on softer materials. With its coarse metric thread and partial threading, it offers optimal grip in both metal and composite substrates, ensuring vibration resistance and long-term reliability in demanding sectors like manufacturing, transportation, and heavy equipment.

Specification Summary & Compliance

This screw features precise M10x1.5 coarse thread with Class 6g tolerance for consistent fit and performance. It complies with ASME B18.2.3.9M dimensional and mechanical standards, ensuring interchangeability and reliability. The product is confirmed RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, adhering to environmental and safety regulations for hazardous substances. Manufactured from high-strength steel with a black-phosphate finish, it meets specified parameters including a minimum thread length of 26 mm, overall length of 40 mm, and flange diameter of 22.3 mm, providing assurance of quality and suitability for industrial applications.