S-94135A587 5/16"-18 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
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B87 hardness for demanding applications
- Secure and tamper-resistant fastening via the drilled spanner drive, preventing unauthorized removal
- Enhanced load distribution from the wide rounded truss head design, reducing surface pressure and material damage
- Precise and reliable threading with Class 2A UNC coarse threads ensuring consistent fit and vibration resistance
- Full-length threading for maximum grip and adjustability across the entire 1-1/2" length
- Regulatory compliance meeting ASME B18.6.3, RoHS 3, and REACH standards for safe, quality-assured use
Professional Applications & Engineering Value
Engineered for industrial and mechanical assemblies, these rounded truss head screws address critical challenges in high-stress environments. The 18-8 stainless steel material provides excellent resistance to rust and chemical exposure, making them suitable for outdoor, marine, or chemical processing equipment. The drilled spanner drive offers a secure, low-profile fastening solution where standard drives are impractical, while the wide truss head distributes clamping force effectively, preventing surface damage on softer materials. With UNC coarse threads and Class 2A fit, these screws ensure quick installation and reliable performance in vibrating machinery, automotive components, and structural frameworks, enhancing assembly durability and reducing maintenance needs.
Specification Summary & Compliance
This screw features a 5/16"-18 UNC thread with Class 2A dimensional accuracy and coarse spacing for reliable engagement. Manufactured in compliance with ASME B18.6.3 specifications, it ensures consistent quality and interchangeability. The product is also verified to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming adherence to environmental and safety regulations for hazardous substances.
