S-93516A721 1/2"-13 x 2 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 marine and harsh industrial environments
- High tensile strength of 70,000 PSI provides reliable structural integrity for demanding applications
- Rockwell B70 hardness ensures superior durability and resistance to wear and deformation
- Fully threaded UNC coarse pattern delivers maximum holding power and faster installation
- Class 2A thread fit guarantees precise, consistent engagement with standard nuts and tapped holes
- External hex drive design allows for high-torque installation with common tools
- Compliance with major industry standards including ASME B18.2.1, RoHS 3, and REACH for quality assurance
Professional Applications & Engineering Value
Engineered specifically for challenging environments, these 651 Silicon Bronze hex head screws provide critical corrosion resistance where standard steel fasteners would fail. The combination of 70,000 PSI tensile strength and Rockwell B70 hardness ensures reliable performance in structural marine applications, chemical processing equipment, and coastal construction projects. The UNC coarse thread pattern with Class 2A fit maintains consistent clamping force while resisting vibration-induced loosening. These fully threaded bronze bolts are particularly valuable in saltwater exposure, offering superior galvanic compatibility with other non-ferrous materials while meeting stringent marine grade requirements for long-term service life.
Specification Summary & Compliance
This 1/2"-13 UNC hex head screw features precise Class 2A thread fit tolerances and coarse thread spacing for optimal performance. Manufactured to ASME B18.2.1 specifications, the fastener ensures dimensional accuracy and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for regulated industries and international markets. With 2 1/4" length and external hex drive configuration, these screws provide consistent mechanical properties across all critical dimensions.
