S-94077A417 5/8"-11 x 3" Tapping Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with ultra-corrosion-resistant coated steel, ensuring long-term durability in harsh industrial environments.
• Superior torque transmission via the external hex drive design, allowing for high tightening force and reduced tool slippage during installation.
• Secure and stable fastening thanks to the flanged head and 1.29" diameter, which distributes load evenly and prevents pull-through in steel and sheet metal.
• Optimized thread engagement with a coarse UNC thread and 2 1/2" minimum thread length, providing strong holding power and resistance to vibration loosening.
• Efficient thread forming capability that creates precise mating threads in materials, eliminating the need for pre-tapped holes and reducing assembly time.
• Reliable partial threading design for controlled clamping force and reduced risk of cross-threading in demanding applications.
• Compliance with environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industries and global market acceptance.

Professional Applications & Engineering Value

This 5/8"-11 UNC tapping screw is engineered to address common fastening challenges in steel and sheet metal assemblies, where vibration resistance and corrosion protection are critical. The ultra-corrosion-resistant coated steel material significantly extends service life in exposed or humid conditions, reducing maintenance costs and downtime. Its thread forming design cuts installation time by forming threads directly into the base material, ensuring a tight fit without pre-tapping. The external hex drive and flanged head provide excellent torque control and surface distribution, preventing damage to thin materials and enhancing joint integrity. Ideal for construction, automotive, and machinery sectors, this screw delivers reliable performance in high-stress environments, backed by precise UNC coarse threads for quick engagement and strong retention.

Specification Summary & Compliance

This screw adheres to UNC coarse thread standards with a size of 5/8"-11, ensuring compatibility with common industrial specifications. It features a partially threaded design with a minimum thread length of 2 1/2" and a flange diameter of 1.29" for consistent performance. Manufactured from coated steel, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, supporting environmental safety and regulatory requirements in global supply chains.