S-90271A144 6-32 x 1/4" ASME B18.6.3 Steel Truss Head Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
• Enhanced load distribution from the wide truss head design, reducing surface pressure and material damage
• High tensile strength of 60,000 psi ensures reliable performance under heavy-duty mechanical stress
• Easy manual installation with slotted drive style for straightforward tool engagement
• Precision coarse threading (UNC) provides faster installation and better debris clearance
• Full threading along 1/4" length delivers maximum grip and adjustment flexibility
• Class 2A thread fit guarantees consistent, reliable fastening with standard mating components

Professional Applications & Engineering Value

Engineered for industrial fastening applications requiring both mechanical strength and environmental durability, this zinc-plated steel truss head screw addresses common challenges in assembly operations. The rounded truss head profile distributes clamping force over a wider area, preventing surface damage to softer materials while the coarse UNC 6-32 threading ensures rapid installation even in applications with minor misalignment. The combination of 60,000 psi tensile strength and Rockwell B69 hardness provides reliable performance in vibration-prone environments, while the zinc plating offers essential corrosion resistance for extended service life in manufacturing, equipment assembly, and electrical enclosures.

Specification Summary & Compliance

This fully threaded 1/4" length screw features precision 6-32 UNC coarse threads with Class 2A thread fit tolerance for consistent mating performance. Manufactured to meet ASME B18.6.3 specifications for dimensional accuracy and mechanical properties. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.