S-93516A552 1/4"-20 x 2 1/2" 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 from 651 Silicon Bronze material for long-lasting performance in marine and harsh industrial environments
- High tensile strength of 70,000 psi ensures reliable load-bearing capacity and structural integrity under demanding conditions
- Rockwell B70 hardness provides superior durability and resistance to deformation during installation and service
- Fully threaded UNC coarse thread design delivers maximum grip and faster installation in various materials
- Class 2A thread fit guarantees precise, consistent engagement while maintaining easy assembly
- External hex drive with 7/16" head width enables secure tool engagement and high-torque installation
- Comprehensive regulatory compliance including ASME B18.2.1, RoHS 3, and REACH ensures quality and environmental safety
Professional Applications & Engineering Value
Engineered for demanding applications where corrosion resistance and structural integrity are paramount, these 651 Silicon Bronze hex head screws deliver exceptional performance in marine environments, chemical processing facilities, and coastal infrastructure. The UNC coarse thread configuration provides superior pull-out resistance in softer materials while the external hex drive allows for high-torque installation without stripping. The combination of 70,000 psi tensile strength and Rockwell B70 hardness ensures these fully threaded screws maintain their mechanical properties even after repeated exposure to saltwater, moisture, and corrosive elements. This makes them ideal for critical fastening applications in boat building, offshore platforms, and wastewater treatment facilities where failure is not an option.
Specification Summary & Compliance
This 1/4"-20 x 2 1/2" hex head screw features Class 2A thread fit tolerance for precise engagement and follows UNC coarse thread standards. Manufactured in compliance with ASME B18.2.1 specifications for dimensional accuracy and performance. The product meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) regulations for chemical safety, ensuring environmental responsibility and workplace safety standards are maintained.
