S-90344A134 6-32 x 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: Withstands up to 170,000 psi for reliable performance in high-stress applications, reducing the risk of fastener failure.
- Superior Thread Fit: Class 3A UNC coarse threads ensure precise, secure engagement and faster assembly in industrial settings.
- Enhanced Corrosion Resistance: Black-oxide finish on both the alloy steel screw and flat washer provides durable protection against rust and wear.
- Integrated Load Distribution: Includes a flat washer (3/8" OD) to evenly distribute pressure and prevent surface damage.
- High Hardness for Durability: Rockwell C39 hardness offers excellent resistance to deformation under heavy loads.
- Efficient Hex Drive Design: 7/64" hex socket allows for easy installation with standard tools, minimizing assembly time.
- Full Thread Coverage: Fully threaded 1/4" length ensures maximum grip and adjustability in various materials.
Professional Applications & Engineering Value
This black-oxide alloy steel socket head cap screw is engineered to address common industrial challenges such as vibration loosening and material fatigue. The 6-32 UNC coarse thread with Class 3A fit provides superior holding power in metals and plastics, making it ideal for machinery, automotive assemblies, and precision equipment. The integrated flat washer enhances clamping force distribution, reducing the risk of damage to sensitive surfaces. With a tensile strength of 170,000 psi and Rockwell C39 hardness, it ensures long-term reliability in demanding environments, from manufacturing lines to structural frameworks.
Specification Summary & Compliance
This screw features precise Class 3A thread fit per UNC standards, ensuring tight tolerances for secure fastening. It is manufactured in compliance with ASTM A574 for consistent quality and performance. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and suitability for global industrial use.
