S-90058A831 10-32 x 3/4" Tamper-Resistant Tri-Groove-Drive Steel Round Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with zinc-plated steel construction, extending service life in harsh environments
• Superior load-bearing capacity with 80,000 psi tensile strength, ensuring reliable performance under high stress
• Precise thread engagement through Class 3A fit and 10-32 UNF fine threading, minimizing vibration loosening
• Optimized drive efficiency with Tri-Groove drive style, reducing cam-out and tool wear during installation
• Enhanced surface durability with Rockwell C28 hardness, maintaining thread integrity through repeated use
• Full-length thread coverage for maximum grip strength across the entire 3/4" length
• High-rounded head profile providing improved clearance and reduced surface damage in assembled applications

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these 10-32 UNF zinc-plated steel rounded head screws address critical fastening challenges where vibration resistance and corrosion protection are paramount. The Class 3A thread fit ensures precise mating with UNF threaded components, eliminating play in precision assemblies while the fine threading provides superior resistance to vibrational loosening in machinery, automotive, and electrical enclosures. The combination of 80,000 psi tensile strength and Rockwell C28 hardness makes these fully threaded fasteners ideal for heavy-duty applications requiring repeated disassembly and reassembly. The Tri-Groove drive system delivers maximum torque transfer with minimal slippage, while the zinc plating creates a sacrificial barrier against oxidation in outdoor or high-humidity installations.

Specification Summary & Compliance

Manufactured to inch system standards with 10-32 UNF fine threads meeting Class 3A thread fit tolerances for precision applications. Features include right-hand threading, fully threaded 3/4" length, and high-rounded head profile. Complies with industry standards for zinc-plated steel fasteners and suitable for applications requiring RoHS and REACH compliance. The Tri-Groove drive style follows industry-accepted drive system specifications for reliable installation performance.