S-94386A105 3/8"-16 x 1" IFI 111, SAE J429 Extra-Wide Serrated-Flange Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 110,000 PSI ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
• Zinc-plated steel construction provides excellent corrosion resistance, extending service life in harsh environments and minimizing maintenance needs.
• UNC coarse threading with Class 2A fit offers quick and secure installation, reducing assembly time while maintaining precise thread engagement.
• Integrated flange design eliminates the need for separate washers, distributing load evenly and preventing surface damage.
• External hex drive and hex head allow for high-torque application with standard tools, ensuring tight fastening in confined spaces.
• Full threading along the 1" length maximizes grip and adjustability, providing consistent holding power across the entire fastener.
• Compliance with SAE J429 and IFI 111 standards guarantees consistent quality and interoperability, meeting rigorous industry specifications.

Professional Applications & Engineering Value

This Grade 5 zinc-plated steel hex head screw is engineered to address common industrial challenges such as vibration loosening and corrosion-induced degradation. The UNC coarse thread with Class 2A fit ensures rapid assembly in structural frameworks, machinery, and automotive components, where time efficiency is critical. The flanged design enhances stability by increasing the bearing surface, reducing the risk of pull-through in sheet metal or plastic assemblies. With a Rockwell C22 hardness and 110,000 PSI tensile strength, it withstands dynamic loads and harsh conditions, making it ideal for heavy-duty applications in construction, manufacturing, and equipment maintenance. The zinc plating adds a protective barrier against moisture and chemicals, prolonging fastener integrity in outdoor or corrosive settings.

Specification Summary & Compliance

This screw features a 3/8"-16 UNC coarse thread with Class 2A dimensional accuracy for consistent fit and performance. It complies with IFI 111 and SAE J429 manufacturing standards, ensuring reliability in mechanical fastening. Environmental and safety regulations are met through RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming the absence of hazardous substances. The fully threaded, 1" length and external hex drive align with industry specifications for ease of use in various assemblies.