S-98130A680 1/2"-13 x 2 1/2" Pentagon Head Screws
Pentagon 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 industrial environments.
- High-torque application capability via the external pentagon drive and 13/16" drive size, preventing tool slippage.
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for heavy-duty use.
- Reliable thread engagement with UNC coarse threads and Class 2A fit, ensuring easy assembly and vibration resistance.
- Full-length threading provides consistent holding power along the entire 2 1/2" length.
- Right-hand thread direction offers standard, intuitive installation for efficient operations.
- Compliance with global safety standards including RoHS 3 and REACH, ensuring environmental and workplace safety.
Professional Applications & Engineering Value
These 18-8 Stainless Steel pentagon head screws deliver robust performance in demanding applications such as machinery assembly, structural frameworks, and outdoor equipment. The external pentagon drive design allows for high torque transfer without rounding, reducing downtime in maintenance-heavy industries. With a coarse UNC thread and Class 2A fit, they provide quick installation and secure fastening in materials where vibration loosening is a concern. Fully threaded for uniform stress distribution, these screws are engineered to withstand heavy loads while the stainless steel material ensures longevity in corrosive settings, making them a reliable choice for industrial and construction projects.
Specification Summary & Compliance
This screw features a 1/2"-13 UNC coarse thread with Class 2A thread fit for standard dimensional accuracy and ease of assembly. Manufactured from 18-8 Stainless Steel, it meets mechanical properties including 70,000 psi tensile strength. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards in industrial use.
