S-90058A836 10-32 x 1 1/2" Tamper-Resistant Tri-Groove-Drive Steel Round Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with zinc-plated steel construction for long-lasting performance in harsh industrial environments
• Superior thread engagement with Class 3A fit ensuring precise, vibration-resistant connections in critical applications
• High-strength fastening capability with 80,000 psi tensile strength and Rockwell C28 hardness for reliable load-bearing performance
• Optimized drive efficiency through tri-groove design providing superior torque transmission and reduced cam-out risk
• Full threading coverage along the 1½" length enables maximum grip and uniform stress distribution
• Enhanced head design with high-rounded profile offering improved clearance and professional finished appearance
• Precision UNF fine threading (10-32) delivers superior holding power in materials requiring fine-pitch fasteners

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these zinc-plated steel screws combine material durability with precision UNF thread engineering to solve common fastening challenges. The Class 3A thread fit ensures minimal play and vibration resistance in machinery, automotive assemblies, and electronic enclosures where fine thread reliability is critical. The tri-groove drive system prevents stripping during high-torque installation, while the high-rounded head profile provides both aesthetic appeal and practical clearance in confined spaces. With 80,000 psi tensile strength, these fully threaded fasteners maintain structural integrity under dynamic loads, making them ideal for applications requiring repeated disassembly and reassembly without performance degradation.

Specification Summary & Compliance

Manufactured to precise UNF thread standards with Class 3A tolerance for superior fit, these screws feature 10-32 fine threading with complete 1½" length coverage. The zinc-plated steel construction meets corrosion resistance requirements while maintaining Rockwell C28 hardness and 80,000 psi tensile strength. Compliant with industry standards for tri-groove drive fasteners and suitable for applications requiring No. 10 drive size compatibility. Meets RoHS and REACH environmental compliance standards for industrial use.