S-95373A142 1/4"-20 x 1" ASME B18.2.1, ASTM A307 Low-Strength Steel Hex Head Screws
Low-Strength Steel Hex 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
- Superior corrosion resistance with hot-dipped galvanized finish for long-lasting performance in harsh industrial environments
- Exceptional tensile strength rated at 60,000 psi ensures reliable fastening in demanding applications
- Optimized thread engagement with UNC coarse threading provides faster installation and reduced cross-threading risk
- Precise Class 2A thread fit guarantees consistent performance and compatibility with standard nuts
- Full threading design allows maximum grip length and versatile positioning in assembly applications
- External hex drive enables high-torque installation with common tools for efficient maintenance
- Rockwell B69 hardness maintains structural integrity under repeated stress and vibration
Professional Applications & Engineering Value
These hot-dipped galvanized steel hex head screws deliver exceptional value in industrial settings where corrosion resistance and structural integrity are paramount. The UNC coarse thread configuration ensures rapid installation in steel frameworks, machinery assembly, and structural applications, while the external hex drive accommodates high-torque applications without stripping. The ASTM A307 compliance guarantees consistent mechanical properties, making these 1/4"-20 threaded fasteners ideal for construction, manufacturing, and outdoor equipment where environmental exposure demands superior protection. The combination of 60,000 psi tensile strength and Rockwell B69 hardness provides reliable performance in vibration-prone applications, reducing maintenance frequency and downtime.
Specification Summary & Compliance
Manufactured to exacting standards with Class 2A thread fit tolerance for precise engagement and UNC coarse thread specifications. These hex head screws comply with ASME B18.2.1 dimensional requirements and ASTM A307 material specifications. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring safe use across industrial sectors. The 1/4"-20 thread size with 1" length provides standardized compatibility with industry components.
