S-94135A591 5/16"-18 x 2" ASME B18.6.3 Tamper-Resistant Drilled Spanner Stainless Steel Truss Head Screws
Tamper-Resistant Drilled Spanner Stainless Steel Truss 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 18-8 Stainless Steel construction, ensuring long-term reliability in harsh industrial environments
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B87 hardness for demanding applications
- Enhanced load distribution through the wide truss head design, reducing surface pressure and material damage
- Secure installation and removal with the drilled spanner drive, providing reliable torque transmission
- Precision threading compatibility with UNC coarse Class 2A fit, ensuring consistent engagement and vibration resistance
- Full-length threading for maximum grip strength across the entire fastener length
- Regulatory compliance assurance meeting ASME B18.6.3, RoHS 3, and REACH standards for quality and environmental safety
Professional Applications & Engineering Value
These rounded truss head screws deliver critical engineering solutions where surface marring and corrosion are primary concerns. The 18-8 stainless steel composition provides excellent resistance to oxidation and chemical exposure, making them ideal for marine, food processing, and outdoor equipment applications. The wide truss head profile distributes clamping force over a larger area, preventing damage to softer materials while the drilled spanner drive offers secure installation in high-vibration environments. With UNC coarse threading and Class 2A fit, these fasteners ensure rapid assembly and reliable performance in industrial machinery, structural frameworks, and heavy equipment where high tensile strength and corrosion resistance are paramount.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit tolerances and UNC coarse thread spacing (5/16"-18). These screws conform to ASME B18.6.3 specifications for dimensional accuracy and mechanical properties. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards, ensuring they meet current regulatory requirements for hazardous substance restrictions.
