S-90058A192 8-32 x 3/8" Tamper-Resistant Tri-Groove-Drive Steel Round Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments
• Exceptional tensile strength rated at 80,000 psi for reliable performance in high-stress applications
• Precision Class 3A thread fit ensures tight, secure fastening with minimal risk of loosening
• Enhanced drive engagement with Tri-Groove system providing superior torque transmission and reduced cam-out
• Optimized coarse thread spacing delivers faster installation and improved holding power in various materials
• Full threading along entire length maximizes grip strength and distribution of clamping force
• Durable Rockwell C28 hardness maintains structural integrity under repeated use and heavy loads

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 8-32 UNC zinc-plated steel screws deliver exceptional performance where reliability matters most. The Tri-Groove drive system significantly reduces tool slippage during high-torque installation, while the coarse thread spacing provides superior pull-out resistance in metal assemblies and construction frameworks. The rounded head design offers a finished appearance while distributing clamping force evenly, making these fasteners ideal for machinery, electrical enclosures, and structural components where vibration resistance and long-term durability are critical. The combination of 80,000 psi tensile strength and Class 3A thread fit ensures these screws maintain precise tolerances in automotive, manufacturing, and heavy equipment applications.

Specification Summary & Compliance

These 8-32 UNC threaded screws feature precise Class 3A thread fit per ASME B1.1 standards, ensuring consistent dimensional accuracy and reliable performance. The fully threaded coarse spacing design complies with UNC specifications, while the zinc-plated steel construction meets industry standards for corrosion protection. Manufacturing follows quality control protocols for Rockwell C28 hardness verification and 80,000 psi tensile strength requirements, suitable for various industrial and construction applications demanding high-performance fastening solutions.