S-91271A841 3/4"-10 x 1 1/2" IFI 115 12-Point Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capability with 170,000 psi tensile strength for demanding industrial applications
• Superior thread engagement through Class 3A fit coarse UNC threads ensuring vibration resistance and secure fastening
• Enhanced durability from alloy steel construction with Rockwell C37 hardness for long service life
• Efficient installation with external 12-point drive and 3/4" drive size enabling high-torque application
• Integrated flange design eliminates need for separate washers while distributing load evenly
• Full threading along 1 1/2" length provides maximum grip depth in various material thicknesses
• Regulatory compliance meets IFI 115 specifications and environmental standards including RoHS 3 and REACH

Professional Applications & Engineering Value

This 12-point flange screw delivers critical performance in heavy machinery, structural assemblies, and high-vibration environments where Class 3A thread fit prevents loosening under dynamic loads. The alloy steel construction with Rockwell C37 hardness maintains integrity in high-stress applications, while the coarse UNC threading enables rapid installation in steel frameworks and industrial equipment. The integrated flange design provides stable bearing surface without additional components, making it ideal for automotive, construction, and manufacturing applications requiring 170,000 psi tensile strength and reliable fastening solutions.

Specification Summary & Compliance

Manufactured to precise Class 3A thread fit tolerances with 3/4"-10 UNC coarse threads and full threading along the 1 1/2" length. Complies with IFI 115 specifications for dimensional accuracy and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial use.