S-94792A715 4-40 x 3/4" ASME B18.6.3 Stainless Steel Truss Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 316 Stainless Steel and passivated finish, ideal for harsh environments
• High tensile strength of 100,000 psi ensures reliable performance under heavy loads
• Wide rounded truss head design provides enhanced load distribution and prevents surface damage
• Class 2A thread fit with coarse UNC threading allows for quick assembly and secure fastening
• Fully threaded shank maximizes grip and holding power across the entire length
• Rockwell B100 hardness offers excellent durability and resistance to wear
• Phillips No. 1 drive ensures easy installation with standard tools

Professional Applications & Engineering Value

These 4-40 UNC rounded truss head screws are engineered to address critical challenges in industrial settings where corrosion resistance and structural integrity are paramount. The 316 Stainless Steel construction, combined with a passivated finish, provides exceptional protection against chemicals, moisture, and saltwater exposure, making them ideal for marine, chemical processing, and outdoor equipment. The wide rounded truss head distributes clamping force effectively, reducing the risk of material cracking or loosening under vibration. With a coarse thread spacing and fully threaded design, they enable rapid installation and maintain secure connections in high-stress applications, from machinery assembly to structural frameworks, ensuring long-term reliability and reduced maintenance costs.

Specification Summary & Compliance

This screw features precise Class 2A thread fit per UNC standards, with a thread size of 4-40 and length of 3/4". It complies with ASME B18.6.3 manufacturing specifications, ensuring dimensional accuracy and performance consistency. Additionally, the product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming its safety for use in regulated industries without hazardous substances.