S-93516A718 1/2"-13 x 1 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
- Exceptional 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 and joint integrity
- Rockwell B70 hardness provides superior durability and resistance to wear and deformation
- Fully threaded UNC coarse pattern delivers faster installation and enhanced holding power in various materials
- External hex drive design allows for high-torque application with standard tools, reducing installation time
- Class 2A thread fit ensures consistent, precise engagement with standard nuts and threaded holes
- Compliance with ASME B18.2.1, RoHS 3, and REACH guarantees quality, safety, and environmental responsibility
Professional Applications & Engineering Value
This 651 Silicon Bronze hex head screw is engineered to solve critical challenges in corrosive and high-stress environments. The silicon bronze composition provides outstanding resistance to saltwater, chemicals, and atmospheric corrosion, making it a top choice for marine applications, offshore structures, and chemical processing equipment. The UNC coarse thread design ensures rapid assembly and superior vibration resistance, while the external hex drive accommodates high torque requirements without stripping. With its 70,000 psi tensile strength and Rockwell B70 hardness, this fastener maintains structural integrity under heavy loads, reducing maintenance costs and downtime in industrial and construction settings where reliability is paramount.
Specification Summary & Compliance
This 1/2"-13 UNC hex head screw features a Class 2A thread fit for consistent dimensional accuracy and easy assembly. Manufactured to ASME B18.2.1 specifications, it ensures interchangeability and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to strict environmental and safety standards for hazardous substance restrictions.
