S-90128A191 8-32 x 1/4" ASTM A574 Alloy Steel Socket Head Screws
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
- Exceptional tensile strength of 170,000 PSI ensures reliable performance under high-stress conditions, reducing the risk of fastener failure.
- Zinc-plated alloy steel construction provides excellent corrosion resistance, extending service life in demanding industrial environments.
- Class 3A thread fit offers superior precision and tighter tolerances for secure, vibration-resistant assemblies.
- Fully threaded UNC coarse thread design enables faster installation and improved grip in a wide range of materials.
- Hex socket drive with 9/64" drive size allows for high-torque application and easy access in confined spaces.
- Compliance with ASTM A574, RoHS 3, and REACH guarantees material quality and environmental safety for global industrial use.
- Rockwell C37 hardness ensures high durability and resistance to wear, maintaining performance over repeated use.
Professional Applications & Engineering Value
This 8-32 UNC Socket Head Cap Screw is engineered to address critical fastening challenges in machinery, automotive, and heavy equipment applications. The zinc-plated alloy steel material combats rust and corrosion, ideal for environments exposed to moisture or chemicals. Its coarse UNC thread and fully threaded design provide quick, secure fastening in soft metals or plastics, minimizing stripping and loosening. The hex drive socket enables precise torque control, essential for high-vibration settings. With a 170,000 PSI tensile strength and Rockwell C37 hardness, it ensures long-term reliability in structural assemblies, reducing maintenance needs and downtime.
Specification Summary & Compliance
This screw features precise Class 3A thread fit and UNC coarse threads with right-hand direction, ensuring accurate engagement. Dimensions include a 1/4" length, 0.27" head diameter, and 9/64" hex drive. It conforms to ASTM A574 manufacturing standards and is verified as RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting strict environmental and safety regulations for industrial use.
