S-91271A544 1/4"-20 x 1 1/4" 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 Tensile Strength: Withstands up to 170,000 psi, providing reliable performance in high-stress industrial applications.
- Superior Thread Precision: Class 3A thread fit ensures tight, secure connections with minimal risk of loosening or cross-threading.
- Integrated Flange Design: Eliminates the need for separate washers, distributing load evenly and speeding up assembly.
- High-Durability Material: Made from Alloy Steel with Rockwell C37 hardness for excellent wear and corrosion resistance.
- Efficient 12-Point Drive: External 12-point head allows for high-torque installation with standard tools, reducing installation time.
- Full Threading: Ensures consistent grip along the entire length, enhancing holding power in various materials.
- Regulatory Compliance: Meets IFI 115, RoHS 3, and REACH standards, ensuring safety and environmental responsibility.
Professional Applications & Engineering Value
This 1/4"-20 UNC 12-Point Screw is engineered to address critical fastening challenges in heavy-duty industries. Constructed from Alloy Steel, it offers high tensile strength and Rockwell C37 hardness, making it ideal for applications requiring resistance to vibration and mechanical stress. The Class 3A thread provides precise, reliable fits in UNC coarse threads, reducing the risk of thread stripping in metals and composites. The integrated flange simplifies assembly by acting as a built-in washer, which is particularly beneficial in automotive, machinery, and construction sectors where speed and reliability are paramount. Its fully threaded design ensures maximum engagement, enhancing joint integrity in dynamic load conditions.
Specification Summary & Compliance
This screw features a 1/4"-20 UNC coarse thread with Class 3A thread fit for high precision, a length of 1 1/4", and a flange diameter of 3/8". It complies with IFI 115 specifications for dimensional accuracy and performance. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring adherence to environmental and safety regulations without compromising on durability or strength.
