S-91271A630 3/8"-16 x 1 3/4" IFI 115 12-Point Screws
12-Point 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
- Exceptional load-bearing capacity with 170,000 psi tensile strength for reliable performance in high-stress applications
- Superior wear resistance from Rockwell C37 hardness, ensuring long-term durability and reduced replacement frequency
- Precision fastening control with Class 3A thread fit and UNC coarse threading for secure, vibration-resistant connections
- Integrated flange design eliminates the need for separate washers, simplifying installation and improving load distribution
- High-torque capability through the external 12-point drive, allowing efficient installation with standard industrial tools
- Partial threading optimization provides maximum grip strength while minimizing material stress concentration
- Regulatory compliance assurance meeting IFI 115 specifications and environmental standards for global industrial use
Professional Applications & Engineering Value
This 12-point flanged screw delivers critical engineering solutions for heavy machinery, automotive assemblies, and structural applications where vibration resistance and high tensile strength are paramount. The alloy steel construction with Rockwell C37 hardness withstands extreme operational stresses while the UNC coarse threading ensures rapid installation in tough materials. The integrated flange provides superior bearing surface distribution, preventing joint loosening under dynamic loads. Class 3A thread fit guarantees precise engagement in critical assemblies, making these partially threaded screws ideal for applications requiring specific clamp load zones without compromising overall structural integrity.
Specification Summary & Compliance
Manufactured to exact IFI 115 specifications with Class 3A thread fit precision and UNC coarse threading (3/8"-16). Dimensions include 1 3/4" length with 1 1/4" minimum thread engagement and 9/16" flange diameter. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.
