S-93516A535 1/4"-20 x 3/8" ASME B18.2.1 Bronze Hex Head Screws
Bronze 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 from 651 Silicon Bronze material, ideal for harsh marine and chemical environments
- Exceptional mechanical strength with 70,000 PSI tensile strength and Rockwell B70 hardness for heavy-duty applications
- Reliable thread engagement through Class 2A thread fit and UNC coarse threading for secure fastening
- Industry-standard compliance meeting ASME B18.2.1 specifications for consistent performance
- Full-threaded design ensures maximum grip length and load distribution across the entire fastener
- Environmental responsibility with RoHS 3 and REACH compliance for sustainable operations
- Easy installation with external hex drive design for straightforward torque application
Professional Applications & Engineering Value
These silicon bronze hex head screws deliver critical performance advantages in demanding industrial settings where corrosion resistance and mechanical reliability are paramount. The 651 Silicon Bronze composition provides exceptional protection against saltwater corrosion and chemical exposure, making these UNC coarse thread screws ideal for marine equipment, chemical processing plants, and offshore structures. The combination of 70,000 PSI tensile strength and Rockwell B70 hardness ensures these fully threaded screws maintain structural integrity under vibration and heavy loads. The external hex drive design facilitates quick installation while the Class 2A thread fit guarantees precise mating with corresponding components, reducing assembly time and preventing cross-threading issues in production environments.
Specification Summary & Compliance
Manufactured to exacting standards with Class 2A thread fit tolerance and UNC coarse threading (1/4"-20) for reliable performance. These hex head screws comply with ASME B18.2.1 manufacturing specifications and maintain full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The 3/8" length and fully threaded design ensure consistent mechanical properties throughout the fastener for dependable operation in industrial applications.
