S-91271A542 1/4"-20 x 1" IFI 115 12-Point Screws

12-Point Screws

0806FA00005 12-Point Screws
0806FA00005 12-Point Screws

Image may differ from product. See technical specification for details.

Part No.
Part No. 0806FA00005
Equivalent to mcmaster :
91271A542

Basic Information

Screw Features Flanged
System of Measurement Inch

Head Parameters

Head Type 12-Point
Head Width 1/4"
Head Height 1/4"

Dimensions

Length 1"
Flange Diameter 3/8"

Thread Parameters

Thread Type UNC
Thread Size 1/4"-20
Thread Diameter 0.25"
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 3A
Threading Fully Threaded

Tip & Drive Parameters

Drive Style External 12-Point
Drive Size 1/4"

Material & Strength

Material Alloy Steel
Hardness Rockwell C37
Tensile Strength 170000 psi

Temperature & Environment

REACH Compliant
RoHS Compliant
Specifications Met IFI 115
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Superior load-bearing capacity with 170,000 psi tensile strength for reliable performance in high-stress applications.
  • Exceptional wear resistance due to alloy steel construction and Rockwell C37 hardness, extending service life.
  • Precise, secure fastening with Class 3A thread fit, minimizing the risk of loosening under vibration.
  • Efficient installation and removal using the external 12-point drive, providing high torque transmission.
  • Enhanced stability and distribution from the flanged design, reducing surface pressure and preventing pull-through.
  • Wide compatibility with UNC coarse threading and right-hand direction, suitable for standard industrial assemblies.
  • Regulatory peace of mind by meeting IFI 115, RoHS 3, and REACH standards for safe, compliant use.

Professional Applications & Engineering Value

This 1/4"-20 UNC 12-point screw is engineered to address critical challenges in demanding industrial environments. The alloy steel material, combined with Rockwell C37 hardness, ensures exceptional durability and resistance to deformation under heavy loads and repetitive stress. The fully threaded design with Class 3A coarse spacing provides reliable grip and fast assembly in materials where fine threads might strip. The external 12-point drive allows for high-torque application, reducing the risk of tool slippage and damage during installation. Its flanged feature offers built-in washer functionality, distributing clamp load effectively and protecting sensitive surfaces. Ideal for machinery, automotive, and structural applications, this screw delivers consistent performance where high-strength fasteners are essential for safety and longevity.

Specification Summary & Compliance

This product adheres to precise dimensional and performance standards, including Class 3A thread fit for tight tolerances and UNC coarse thread spacing. It is manufactured in compliance with IFI 115 specifications and meets critical regulatory requirements such as RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring environmental safety and material restrictions are addressed for industrial use.

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