S-93516A540 1/4"-20 x 3/4" 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
- Superior corrosion resistance from 651 Silicon Bronze material, ideal for marine and harsh industrial environments
- High tensile strength of 70,000 psi ensures reliable load-bearing capacity in demanding applications
- Rockwell B70 hardness provides excellent durability and resistance to wear and deformation
- Fully threaded UNC coarse pattern delivers faster installation and superior holding power
- External hex drive design allows for easy installation with standard tools and high torque application
- Class 2A thread fit ensures consistent, reliable engagement with mating components
- Compliance with ASME B18.2.1, RoHS 3, and REACH guarantees quality and environmental responsibility
Professional Applications & Engineering Value
These 651 Silicon Bronze hex head screws are engineered specifically for challenging environments where corrosion resistance and mechanical strength are critical. The UNC coarse thread pattern combined with Class 2A thread fit provides exceptional engagement in marine equipment, chemical processing plants, and coastal infrastructure. The external hex drive enables high-torque installation without stripping, while the fully threaded design ensures maximum holding strength along the entire fastener length. These marine grade screws solve common industry problems of fastener failure in saltwater exposure and chemical-rich atmospheres, making them ideal for boat building, offshore platforms, and wastewater treatment facilities where corrosion resistant fasteners are essential for long-term structural integrity.
Specification Summary & Compliance
This 1/4"-20 x 3/4" hex head screw features precise Class 2A thread fit with UNC coarse threading and right-hand thread direction. Manufactured to ASME B18.2.1 specifications, the fastener meets dimensional and performance requirements for industrial applications. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental responsibility and safety standards. The combination of 70,000 psi tensile strength and Rockwell B70 hardness provides reliable mechanical performance across various industrial and marine applications.