S-90344A154 3/8"-24 x 1 1/4" 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
- Exceptional tensile strength of 170,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure.
- Class 3A thread fit provides superior precision and tighter tolerances for secure, vibration-resistant assemblies in critical applications.
- Integrated flat washer distributes load evenly, minimizing surface damage and improving joint integrity.
- Black-oxide finish on alloy steel offers enhanced corrosion resistance and a durable, non-galling surface for extended service life.
- Fine UNF threads deliver improved clamping force and better adjustment control in fine-pitch applications.
- Hex socket drive design allows for high-torque installation with standard tools, facilitating efficient assembly in confined spaces.
- Full threading ensures consistent engagement along the entire length, providing versatile fastening options.
Professional Applications & Engineering Value
This socket head cap screw is engineered to address common industrial challenges such as vibration loosening and material fatigue. The black-oxide alloy steel construction, combined with a Class 3A UNF fine thread, offers excellent resistance to wear and environmental factors, making it ideal for precision machinery, automotive assemblies, and heavy-duty equipment. The integrated flat washer enhances load distribution, preventing surface indentation and maintaining clamp force under dynamic loads. Its high tensile strength and Rockwell C39 hardness ensure dependable performance in demanding applications, reducing maintenance needs and downtime.
Specification Summary & Compliance
This screw features a 3/8"-24 UNF fine thread with Class 3A fit for precise alignment and secure fastening. It complies with ASTM A574 specifications for high-strength socket head cap screws, ensuring consistent quality and performance. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety standards for industrial use.
