S-90124A333 1/2"-13 x 1 1/2" ASME B18.2.1, SAE J429 Steel Wire-Lockable Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with black-oxide steel coating, extending service life in demanding industrial environments
• High tensile strength of 120,000 psi ensures reliable performance under heavy loads and vibration
• Rockwell C25 hardness provides superior wear resistance and durability for long-term applications
• Fully threaded UNC coarse design delivers faster installation and superior holding power in various materials
• Class 2A thread fit guarantees consistent, precise engagement while allowing for easier assembly
• External hex drive with 3/4" head width enables high-torque installation using standard tools
• Compliance with ASME B18.2.1 and RoHS 3 ensures quality assurance and environmental responsibility

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, these Grade 5 black-oxide steel hex head screws deliver exceptional performance in construction, machinery assembly, and structural frameworks. The 1/2"-13 UNC coarse thread configuration provides superior resistance to vibration loosening while enabling rapid installation in steel, wood, and composite materials. The black-oxide surface treatment creates a protective barrier against oxidation and corrosion, significantly extending service life in harsh environments. With 120,000 psi tensile strength and fully threaded design, these fasteners maintain clamping force under extreme loads, preventing joint failure in critical assemblies. The external hex drive accommodates high torque applications, making them ideal for maintenance operations and production lines where reliability is paramount.

Specification Summary & Compliance

This 1/2"-13 hex head screw features Class 2A thread fit per UNC standards, ensuring dimensional accuracy and interchangeability. Manufactured to ASME B18.2.1 specifications where identified with SAE J429, guaranteeing consistent quality and performance. The fastener meets RoHS 3 (2015/863/EU) compliance for environmental safety, containing no restricted hazardous substances. With 1 1/2" length and fully threaded construction, it maintains precise engineering tolerances for reliable performance in industrial applications.