S-90910A818 6-32 x 1/4" ASME B18.3, ASTM F835 Steel Button Head Torx Plus Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated alloy steel construction, ideal for harsh industrial environments
• Enhanced torque transmission and reduced cam-out using Torx Plus drive (IP10/T10) for reliable, secure fastening
• High tensile strength of 120,000 psi ensures dependable performance under heavy loads and vibration
• Precise Class 3A thread fit provides consistent engagement and reduces the risk of cross-threading
• Rockwell C39 hardness offers excellent durability and resistance to wear over repeated use
• Fully threaded 6-32 UNC coarse thread design allows for faster installation and strong holding power
• Low-profile rounded button head delivers a smooth finish while maintaining a compact installation profile

Professional Applications & Engineering Value

These zinc-plated alloy steel screws with 6-32 UNC coarse threads and Torx Plus drive are engineered to address critical industrial fastening challenges. The combination of high tensile strength (120,000 psi) and Rockwell C39 hardness ensures reliable performance in demanding applications such as machinery assembly, electronic enclosures, and automotive components. The zinc plating provides a protective barrier against corrosion, extending service life in environments exposed to moisture or chemicals. The Class 3A thread fit and fully threaded design facilitate quick, accurate installation, reducing assembly time and minimizing the risk of fastener failure. These rounded head screws are ideal for projects requiring a flush finish and consistent clamping force, making them a trusted choice for engineers and maintenance professionals seeking durability and compliance with industry standards.

Specification Summary & Compliance

This product meets ASME B18.3 and ASTM F835 specifications, ensuring dimensional accuracy and manufacturing consistency. The 6-32 UNC thread adheres to Class 3A fit tolerances for precise engagement. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of hazardous substances. Manufactured in the inch system, these screws feature a right-hand thread direction and are designed for reliable performance in industrial applications.