S-92220A189 1/4"-20 x 2" ASTM A574 Alloy Steel Low-Profile Socket Head Screws
Alloy Steel Low-Profile 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 140,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
- Corrosion-resistant black-oxide finish on alloy steel enhances durability and longevity in harsh industrial environments.
- Precise Class 3A thread fit provides superior engagement and vibration resistance, minimizing loosening over time.
- Low-profile socket head with hex drive allows for easy installation in confined spaces and secure torque application.
- Partially threaded design offers optimal clamping force control and reduces the risk of cross-threading during assembly.
- Compliance with ASTM A574, RoHS 3, and REACH ensures consistent quality and environmental safety for global supply chains.
- Rockwell C39 hardness delivers excellent wear resistance, maintaining thread integrity through repeated use.
Professional Applications & Engineering Value
Engineered for demanding industrial fastening applications, this 1/4"-20 UNC Socket Head Cap Screw addresses critical challenges in machinery assembly, automotive components, and heavy equipment. The black-oxide alloy steel construction provides superior corrosion resistance, extending service life in environments exposed to moisture and chemicals. Its coarse thread and Class 3A fit ensure rapid installation and secure holding power, reducing assembly time while preventing vibration-induced failures. The low-profile head and hex drive design facilitate access in tight spaces, making it ideal for compact engineering designs. With a partially threaded shank, it offers precise clamp load distribution, minimizing stress concentration and enhancing joint reliability in high-strength applications.
Specification Summary & Compliance
This fastener adheres to UNC coarse thread standards with a Class 3A thread fit for high precision. It meets ASTM A574 manufacturing specifications, ensuring consistent material and mechanical properties. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it is free from hazardous substances, supporting sustainable and safe industrial use.
