S-91271A800 5/8"-11 x 1 3/4" IFI 115 12-Point Screws

Key Features & Benefits at a Glance

• Superior load-bearing capability with 170,000 psi tensile strength for demanding industrial applications
• Exceptional wear resistance due to Rockwell C37 hardness alloy steel construction
• Precision thread engagement with Class 3A fit ensuring reliable fastening in critical assemblies
• Enhanced torque transmission through external 12-point drive for secure installation
• Integrated flange design eliminates need for separate washers while distributing clamp load
• Full threading coverage provides consistent holding power along the entire 1¾" length
• Regulatory compliance assurance meeting IFI 115, RoHS 3, and REACH standards

Professional Applications & Engineering Value

This 12-point flanged screw delivers exceptional engineering value in heavy machinery, structural steel connections, and high-vibration environments where Class 3A thread precision prevents loosening under dynamic loads. The alloy steel construction with Rockwell C37 hardness maintains integrity in corrosive industrial atmospheres, while the 5/8"-11 UNC coarse thread enables rapid assembly without cross-threading risks. The integrated flange design provides superior bearing surface distribution, eliminating washer requirements in tight-clearance applications. These industrial screws are engineered to withstand extreme tensile demands up to 170,000 psi, making them ideal for critical bolting applications in construction equipment, manufacturing machinery, and transportation infrastructure where failure is not an option.

Specification Summary & Compliance

Manufactured to exact IFI 115 specifications with Class 3A thread fit precision and UNC coarse thread spacing (5/8"-11). Features include right-hand threading, 5/8" external 12-point drive, 15/16" flange diameter, and full threading along the 1¾" length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial use.