S-90273A636 3/8"-16 x 3" ASME B18.6.3 Steel Phillips Flat Head Screws
Steel Phillips Flat 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 zinc-plated steel construction, ideal for harsh industrial environments
- Exceptional tensile strength of 60,000 psi ensures reliable performance in high-stress applications
- Class 2A thread fit provides consistent, easy assembly and secure fastening in coarse UNC threads
- Partially threaded design enhances grip and prevents material splitting in wood and metal assemblies
- 82° countersink angle allows for flush mounting, reducing snagging and improving aesthetics
- Rockwell B70 hardness offers excellent durability and resistance to wear over time
- Compliance with ASME B18.6.3, RoHS, and REACH ensures safety, quality, and environmental standards are met
Professional Applications & Engineering Value
This 3/8"-16 UNC flat head screw is engineered to address common industrial challenges, such as vibration loosening and corrosion in demanding environments. Made from zinc-plated steel, it provides a protective barrier against moisture and chemicals, extending service life in applications like construction, machinery assembly, and heavy equipment. The partially threaded and coarse thread design ensures optimal clamping force, reducing the risk of joint failure. With a Phillips drive for easy installation and ASME B18.6.3 compliance, it delivers consistent performance in structural and mechanical fastening, making it a reliable choice for professionals seeking durability and regulatory adherence.
Specification Summary & Compliance
This screw adheres to precise dimensional standards, including Class 2A thread fit for consistent assembly and UNC coarse threads for robust holding power. It meets ASME B18.6.3 specifications for quality and performance, with additional compliance to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) for environmental safety. Key attributes include a length of 3", tensile strength of 60,000 psi, and hardness of Rockwell B70, ensuring reliability in industrial and construction applications.
