S-91271A611 5/16"-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 applications
- Superior thread precision with Class 3A UNF fine threads ensuring tight, vibration-resistant connections
- Integrated flange design eliminates need for separate washers while providing enhanced load distribution
- Premium alloy steel construction with Rockwell C37 hardness delivers outstanding durability and corrosion resistance
- External 12-point drive system allows for high-torque installation with standard wrenching tools
- Full threading along entire length maximizes engagement strength and load distribution capabilities
- Comprehensive compliance with IFI 115 specifications and environmental regulations including RoHS 3 and REACH
Professional Applications & Engineering Value
This 12-point flanged screw delivers exceptional engineering value in demanding industrial applications where vibration resistance and precise torque application are critical. The alloy steel construction combined with Rockwell C37 hardness ensures reliable performance in heavy machinery, automotive assemblies, and structural frameworks. The 5/16"-24 UNF fine threads with Class 3A fit provide superior clamping force and vibration resistance, while the integrated flange eliminates washer requirements, streamlining assembly processes. The external 12-point drive enables high-torque installation without stripping, making it ideal for applications requiring precise torque values and reliable fastening in confined spaces.
Specification Summary & Compliance
Manufactured to exacting IFI 115 specifications with precision Class 3A thread fit and UNF fine thread profile ensuring consistent performance. The screw features 5/16"-24 thread size with right-hand threading and 1-1/2" length with full threading. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the highest standards for industrial fastener applications requiring both mechanical excellence and environmental responsibility.
