S-91271A607 5/16"-24 x 1" 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 capability with 170,000 psi tensile strength for reliable performance in demanding applications
- Precision thread engagement with Class 3A UNF fine threads ensuring vibration resistance and secure fastening
- Superior torque transmission through external 12-point drive design for efficient installation with standard tools
- Enhanced stability and distribution with integrated flange design that eliminates the need for separate washers
- Long-term corrosion resistance thanks to alloy steel construction with Rockwell C37 hardness rating
- Full-length threading provides consistent grip strength along the entire 1" length for uniform clamping force
- Regulatory compliance assurance meeting IFI 115 specifications and environmental standards for global industrial use
Professional Applications & Engineering Value
This 12-point alloy steel screw delivers critical performance advantages for industrial assembly where vibration resistance and high clamping forces are essential. The 5/16"-24 UNF fine threads with Class 3A fit maintain precise tolerances in machinery, automotive, and heavy equipment applications, preventing loosening under dynamic loads. The external 12-point drive enables high-torque installation without stripping, while the flanged design provides superior bearing surface distribution. With 170,000 psi tensile strength and Rockwell C37 hardness, this fastener withstands extreme mechanical stress, making it ideal for critical joints in structural components, power transmission systems, and precision manufacturing equipment where failure is not an option.
Specification Summary & Compliance
This precision fastener features 5/16"-24 UNF fine threads with Class 3A thread fit for exacting dimensional accuracy. Manufacturing complies with IFI 115 specifications ensuring consistent quality and performance. The screw meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards, making it suitable for regulated industrial markets. With right-hand thread direction, fully threaded 1" length, and 15/32" flange diameter, this fastener delivers reliable performance in critical assembly applications requiring high-strength, precision-engineered fastening solutions.
