S-92327A811 1/4"-20 x 1" ASME B18.2.1, SAE J429 Square Head Screws
Square 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
- Enhanced corrosion resistance with zinc yellow-chromate plating, ideal for harsh industrial environments
- Reliable high-strength performance with 120,000 psi tensile strength and Rockwell C25 hardness for demanding applications
- Precise thread engagement thanks to Unified Standard Class 3A fit and UNC coarse threading, reducing cross-threading risks
- Secure installation and removal with external square drive design, providing excellent torque transfer
- Durable SAE Grade 5 rating ensuring consistent quality and medium strength for industrial use
- Full threading along the 1" length for maximum grip and uniform load distribution
- Compliance with ASME B18.2.1 and SAE J429 standards, guaranteeing interchangeability and safety
Professional Applications & Engineering Value
This 1/4"-20 x 1" SAE Grade 5 square head screw is engineered to address critical challenges in heavy-duty industrial settings, such as machinery assembly, construction equipment, and automotive systems. The steel material combined with zinc yellow-chromate plating provides superior protection against rust and corrosion, extending service life in exposed conditions. Its UNC coarse threads and Class 3A thread fit ensure quick, secure fastening with minimal risk of stripping, while the external square drive allows for high-torque applications without slippage. Ideal for applications requiring medium strength and reliable performance, this fastener reduces maintenance downtime and enhances structural integrity in demanding environments.
Specification Summary & Compliance
This square head screw features precise dimensions: 1/4"-20 UNC coarse thread with Unified Standard Class 3A fit, 1" length, and external square drive. It meets ASME B18.2.1 and SAE J429 specifications, ensuring adherence to industry standards for dimensional accuracy and performance. The product complies with common regulatory requirements for quality and safety in industrial fasteners.
