S-93516A128 5/16"-18 x 3 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 for long-lasting performance in marine and harsh industrial environments
- High tensile strength of 70,000 psi provides reliable structural integrity under heavy loads
- Rockwell B70 hardness ensures superior durability and resistance to wear and deformation
- Fully threaded UNC coarse design delivers maximum grip and faster installation in various materials
- External hex head with 1/2" width allows for easy installation with standard tools and high torque application
- Class 2A thread fit guarantees consistent, reliable engagement while maintaining installation ease
- Comprehensive regulatory compliance ensures material safety and environmental responsibility
Professional Applications & Engineering Value
Engineered for demanding applications where corrosion resistance and structural reliability are paramount, these 651 Silicon Bronze hex head screws deliver exceptional performance in marine hardware, chemical processing equipment, and coastal infrastructure. The UNC coarse thread configuration provides superior holding power in both hard and soft materials, while the external hex drive design enables high-torque installation without stripping. With 70,000 psi tensile strength and Rockwell B70 hardness, these fasteners maintain integrity in high-stress environments where standard steel fasteners would succumb to corrosion-induced failure. The fully threaded design ensures maximum engagement depth, making them ideal for thick-section assemblies and structural connections requiring uniform clamping force distribution.
Specification Summary & Compliance
These 5/16"-18 x 3-1/2" hex head screws feature Class 2A thread fit tolerance for consistent engagement and UNC coarse thread specification (18 TPI) per standard industrial practice. Manufacturing complies with ASME B18.2.1 dimensional standards, ensuring interchangeability and proper fitment. The products are certified RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting current environmental regulations for hazardous substance restrictions and chemical safety protocols.
