S-93516A113 1/4"-20 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
- Superior corrosion resistance for extended service life in marine and harsh industrial environments
- High tensile strength (70,000 psi) provides reliable load-bearing capacity and structural integrity
- Rockwell B70 hardness ensures excellent wear resistance and durability under mechanical stress
- Coarse UNC thread design delivers faster installation and superior holding power in various materials
- External hex drive allows for high-torque installation with standard tools and easy maintenance access
- Full threading maximizes grip length and provides consistent clamping force along the entire fastener
- Comprehensive compliance with industry standards ensures quality and regulatory acceptance
Professional Applications & Engineering Value
These 651 Silicon Bronze hex head screws are engineered specifically for demanding applications where corrosion resistance is critical. The marine-grade bronze composition provides exceptional protection against saltwater corrosion, making them ideal for boat building, offshore platforms, and coastal infrastructure. The 1/4"-20 UNC coarse thread design ensures rapid installation and superior pull-out resistance in wood, composite materials, and softer metals. With 70,000 psi tensile strength and Rockwell B70 hardness, these fasteners maintain structural integrity under vibration and load cycling, solving common failure points in harsh environments. The external hex drive accommodates high installation torque while the fully threaded design provides maximum engagement for critical connections.
Specification Summary & Compliance
This 1/4"-20 UNC hex head screw features Class 2A thread fit for standard industrial applications with proper clearance. Manufacturing conforms to ASME B18.2.1 specifications ensuring dimensional accuracy and mechanical properties. The fastener is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting current environmental regulations for hazardous substances. With dimensions of 1 3/4" length, 7/16" head width, and 5/32" head height, these screws provide standardized compatibility across industrial applications.
