S-94173A323 3/8"-16 x 4" 12-Point Screws
12-Point Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Exceptional tensile strength of 170,000 PSI ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
- Superior corrosion resistance from the black-oxide finish extends service life in demanding environments, minimizing maintenance needs.
- High torque capability with the external 12-point drive allows for secure installation and removal, even in confined spaces.
- Enhanced durability from Rockwell C38 hardness provides excellent wear resistance, maintaining thread integrity over repeated use.
- Optimized load distribution through the integrated flange design helps prevent surface damage and improves joint stability.
- Efficient assembly with UNC coarse threading and Class 2A fit ensures quick, precise engagement, speeding up production timelines.
- Versatile partial threading offers flexibility for applications requiring both clamping and unthreaded shank benefits.
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, this black-oxide alloy steel 12-point screw addresses critical challenges in machinery, construction, and automotive sectors. The external 12-point drive delivers superior torque transfer, preventing stripping during high-tension fastening, while the UNC coarse thread and Class 2A thread fit ensure consistent engagement in varied materials. The flange design distributes clamping force evenly, reducing the need for separate washers and simplifying assembly. Combined with 170,000 PSI tensile strength and Rockwell C38 hardness, it provides a durable, corrosion-resistant solution for structural connections, equipment frames, and other high-load scenarios where reliability is paramount.
Specification Summary & Compliance
This screw adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy. It meets industry specifications for alloy steel fasteners, including compliance with ASME and other relevant engineering standards. The black-oxide surface treatment aligns with RoHS and REACH environmental directives, ensuring safe use in various industrial settings.
