S-90299A140 6-32 x 3/8" ASME B18.3, ASTM A574 Brass-Tip Alloy Steel Socket Head Screws
Brass-Tip Alloy Steel Socket Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Precision Threading: Class 3A UNC threads ensure superior fit and vibration resistance in demanding applications.
- Exceptional Strength: 180,000 psi tensile strength and Rockwell C39 hardness provide reliable performance under high stress.
- Surface Protection: Nonmarring brass tip prevents damage to sensitive surfaces during installation and use.
- Corrosion Resistance: Black-oxide coating on alloy steel enhances durability in various industrial environments.
- Secure Drive System: Hex socket (7/64") allows for high-torque application without cam-out, ensuring tight fastening.
- Full Thread Engagement: Fully threaded design maximizes grip and load distribution along the entire length.
- Regulatory Compliance: Meets ASME B18.3, ASTM A574, RoHS 3, and REACH standards for guaranteed quality and safety.
Professional Applications & Engineering Value
This Socket Head Cap Screw with 6-32 UNC Class 3A threads is engineered for precision assembly in machinery, electronics, and automotive sectors. The black-oxide alloy steel construction resists corrosion while maintaining high tensile strength (180,000 psi), ideal for applications requiring repeated disassembly. The nonmarring brass tip eliminates surface scratches on delicate components, making it perfect for fixtures and sensitive equipment. Combined with a hex drive for secure torque transmission, it solves common issues of fastener failure and part damage, ensuring long-term reliability in industrial fastening systems.
Specification Summary & Compliance
This screw features precise 6-32 UNC Class 3A threads with coarse spacing for easy engagement, a length of 3/8", and full threading. It complies with ASME B18.3 and ASTM A574 manufacturing standards, ensuring dimensional accuracy and performance. Additionally, it is RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, meeting environmental and safety regulations for industrial use.
