S-90344A140 M3 x 8 mm ASTM A574 Socket Head Screws with Flat Washer
Socket Head Screws with Flat Washer
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Washer & Nut
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Enhanced durability and corrosion resistance with black-oxide alloy steel construction, ideal for harsh industrial environments.
- Superior load distribution and reduced surface damage thanks to the integrated flat washer (10 mm OD), ensuring secure and even clamping force.
- High tensile strength of 170,000 psi and Rockwell C39 hardness for reliable performance under heavy mechanical stress.
- Precise and secure fastening with Class 6g thread fit and coarse 0.5 mm pitch, minimizing the risk of loosening in dynamic applications.
- Easy installation and removal using a standard 2.5 mm hex drive, reducing assembly time and tool wear.
- Full compliance with ASTM A574 standards, ensuring consistent quality and dimensional accuracy for critical engineering uses.
- Environmentally safe operation with RoHS 3 and REACH compliance, meeting global regulatory requirements for hazardous substances.
Professional Applications & Engineering Value
This M3 socket head cap screw is engineered to address common industrial fastening challenges, such as vibration-induced loosening and material fatigue. Made from black-oxide alloy steel, it offers excellent resistance to rust and wear, making it suitable for machinery, automotive assemblies, and precision equipment. The fully threaded design and coarse thread pitch provide strong holding power in metals and plastics, while the integrated flat washer distributes load evenly to prevent surface damage. Ideal for applications requiring high-strength, metric fasteners that comply with strict industry standards, this screw ensures long-term reliability in demanding environments.
Specification Summary & Compliance
This product features a Class 6g thread fit with ISO-compliant M3 x 0.5 mm coarse threads and precise dimensions (8 mm length, 5.68 mm head diameter). It meets ASTM A574 manufacturing specifications for socket head cap screws and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring safety and environmental responsibility.
