S-91271A646 3/8"-24 x 1 1/2" 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 industrial applications
- Superior thread engagement through Class 3A fine UNF threading ensuring precise fit and vibration resistance
- Enhanced torque transmission with external 12-point drive design allowing higher tightening forces without stripping
- Integrated flange design eliminates need for separate washers while providing superior load distribution
- Premium alloy steel construction with Rockwell C37 hardness delivers outstanding wear resistance and durability
- Full threading along 1-1/2" length maximizes grip strength and holding power across the entire fastener
- Regulatory compliance assurance meeting IFI 115 standards and environmental regulations for global industrial use
Professional Applications & Engineering Value
This 12-point flanged screw addresses critical engineering challenges in heavy machinery, automotive assemblies, and industrial equipment where vibration resistance and high tensile demands are paramount. The alloy steel construction combined with Class 3A UNF fine threading creates an optimal solution for applications requiring precise clamping force and minimal loosening under dynamic loads. The integrated flange design simplifies installation while providing superior surface contact, preventing damage to connected materials. With its external 12-point drive and fully threaded configuration, this fastener delivers exceptional torque transmission and holding power in confined spaces, making it ideal for critical assemblies in aerospace, defense, and precision manufacturing sectors where reliability cannot be compromised.
Specification Summary & Compliance
Manufactured to exacting Class 3A thread fit tolerances with 3/8"-24 UNF fine threading and right-hand thread direction. Complies with IFI 115 specifications for dimensional accuracy and mechanical properties. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards. Features include: 1-1/2" length, 9/16" flange diameter, Rockwell C37 hardness, and full threading throughout the shank length.
