S-94135A628 3/8"-16 x 1 1/2" 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 with 18-8 Stainless Steel construction, ideal for harsh environments and long-term reliability.
- High mechanical strength offering 70,000 psi tensile strength and Rockwell B87 hardness for demanding applications.
- Enhanced load distribution from the wide truss head design, reducing surface pressure and material damage.
- Secure and tamper-resistant fastening with a drilled spanner drive, providing a positive grip during installation.
- Reliable and quick assembly due to coarse UNC threading and Class 2A fit, ensuring consistent engagement.
- Full thread coverage along the 1 1/2" length for maximum holding power and adjustability.
- Compliance with industry standards including ASME B18.6.3, ensuring dimensional accuracy and performance.
Professional Applications & Engineering Value
This 3/8"-16 UNC Rounded Truss Head Screw is engineered to address common industrial challenges such as vibration loosening and corrosion-induced failure. The 18-8 Stainless Steel material provides excellent resistance to rust and chemicals, making it suitable for outdoor, marine, and chemical processing equipment. The rounded truss head offers a low-profile, wide bearing surface that distributes clamp load effectively, preventing pull-through in softer materials or sheet metal. Combined with a drilled spanner drive and coarse thread design, it ensures fast, secure installation in high-vibration environments like machinery, automotive assemblies, and structural frameworks, reducing maintenance needs and improving operational uptime.
Specification Summary & Compliance
This screw features a 3/8"-16 UNC thread with Class 2A fit for standard tolerance and easy assembly. It is fully threaded and right-hand oriented, with a length of 1 1/2". Manufactured in compliance with ASME B18.6.3 for dimensional consistency, and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions adherence.
