S-93516A116 1/4"-20 x 3 1/4" 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
- Exceptional corrosion resistance for long-lasting performance in harsh marine and industrial environments
- High tensile strength of 70,000 PSI ensures reliable load-bearing capacity and structural integrity
- Rockwell B70 hardness provides superior durability and resistance to wear and deformation
- Fully threaded UNC coarse pattern enables faster installation and secure holding power
- Class 2A thread fit guarantees precise, consistent engagement with mating components
- External hex drive design allows for easy installation with standard tools and high torque application
- Compliance with ASME B18.2.1, RoHS 3, and REACH ensures quality, safety, and environmental responsibility
Professional Applications & Engineering Value
These 651 Silicon Bronze hex head screws deliver exceptional value in demanding applications where corrosion resistance and mechanical strength are critical. The silicon bronze composition provides outstanding protection against saltwater corrosion, making them ideal for marine hardware, boat building, and coastal infrastructure. The UNC coarse thread pattern ensures reliable performance in soft materials and rapid assembly in production environments. With 70,000 PSI tensile strength and Rockwell B70 hardness, these fully threaded fasteners maintain integrity under vibration and load stress, solving common failure points in industrial equipment, offshore platforms, and chemical processing facilities. The external hex drive facilitates high-torque installation without stripping, while the Class 2A thread fit ensures consistent engagement for precision assemblies.
Specification Summary & Compliance
This 1/4"-20 UNC hex head screw features precise Class 2A thread fit tolerances and coarse threading for optimal performance. Manufactured to ASME B18.2.1 specifications with complete compliance to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The 3 1/4" length and fully threaded design provide consistent mechanical properties throughout the fastener, meeting rigorous industrial standards for quality and safety.
