S-99117A550 10-24 x 8" ASME B18.6.3 Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, ideal for harsh industrial environments
• High tensile strength of 60,000 psi ensures reliable performance in demanding applications
• Class 2A thread fit provides consistent, reliable engagement with standard UNC coarse threaded components
• Partially threaded design allows for precise clamping force control and material compression
• Rockwell B70 hardness rating maintains structural integrity under repeated stress and vibration
• Phillips No. 2 drive enables efficient installation with common tools while minimizing cam-out
• 8-inch length with 1½" minimum thread engagement offers versatile fastening solutions for thick materials

Professional Applications & Engineering Value

These zinc-plated steel rounded head screws deliver exceptional engineering value across industrial applications where corrosion resistance and structural integrity are paramount. The UNC coarse threading with Class 2A fit ensures rapid assembly while maintaining vibration resistance in machinery, construction frameworks, and heavy equipment. The pan head profile distributes clamping force evenly, preventing surface damage while the partial threading allows precise control over joint compression. With 60,000 psi tensile strength and Rockwell B70 hardness, these fasteners withstand extreme mechanical stress in manufacturing, infrastructure, and automotive applications where failure is not an option.

Specification Summary & Compliance

Manufactured to exacting ASME B18.6.3 standards with Class 2A thread fit tolerances for consistent performance. Features 10-24 UNC coarse threads with right-hand orientation and partial threading up to 1½" minimum engagement. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures safe use across global markets.