S-90044A279 0-80 x 1 1/2" ASTM A574 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Superior tensile strength of 170,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure.
• Precise Class 3A thread fit provides excellent engagement and vibration resistance, maintaining joint integrity in demanding applications.
• Black-oxide finish on alloy steel offers enhanced corrosion resistance and a durable, non-galling surface for extended service life.
• Hex socket drive design allows for high torque application and easy installation in confined spaces, improving assembly efficiency.
• Fine UNF threads deliver superior holding power and precise adjustment capabilities in fine-pitch applications.
• Rockwell C37 hardness ensures high wear resistance and durability, minimizing deformation during repeated use.
• Compliance with ASTM A574, RoHS 3, and REACH guarantees material consistency and environmental safety for global industrial use.

Professional Applications & Engineering Value

This 0-80 UNF Socket Head Cap Screw is engineered to address critical challenges in precision assemblies, such as machinery, aerospace components, and electronic enclosures where space constraints and vibration are concerns. The black-oxide alloy steel construction, combined with a Class 3A fine thread, ensures minimal backlash and superior clamp load retention, preventing loosening under dynamic loads. Its partially threaded design with a minimum thread length of 1/2" allows for optimal grip in tapped holes, while the hex drive facilitates secure tightening without slippage. Ideal for applications requiring high tensile strength and corrosion resistance, this screw enhances reliability in industrial fastening systems, reducing maintenance needs and downtime.

Specification Summary & Compliance

This product adheres to Class 3A thread fit per UNF standards, ensuring precise dimensional accuracy for secure fastening. Manufactured in compliance with ASTM A574 specifications, it meets rigorous material and performance requirements. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming its suitability for use in regulated environments without hazardous substances.