S-92949A892 1-72 x 5/16" ASME B18.3 Stainless Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction and passivated finish, ideal for harsh environments.
• Exceptional thread precision with Class 3A fit and UNF fine thread for secure, vibration-resistant fastening.
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads and stress.
• Easy installation and removal with hex drive (0.050") and rounded button head design.
• Full threading along the 5/16" length provides maximum grip and uniform load distribution.
• Compliance with ASME B18.3 standards guarantees dimensional accuracy and interchangeability.
• Environmentally safe with RoHS 3 and REACH compliance, meeting strict regulatory requirements.

Professional Applications & Engineering Value

This 1-72 UNF fine thread rounded head screw is engineered for precision applications where reliability and corrosion resistance are critical. Made from 18-8 Stainless Steel with a passivated finish, it effectively resists oxidation and chemical exposure, extending service life in industries like aerospace, electronics, and medical devices. The Class 3A thread fit and fine threading reduce the risk of loosening under vibration, while the hex drive and button head design allow for easy access in confined spaces. Ideal for assembling sensitive components, this screw ensures consistent clamping force and high tensile strength, minimizing maintenance and downtime in demanding environments.

Specification Summary & Compliance

This screw features a Class 3A thread fit with UNF fine threads, ensuring tight tolerances per ASME B18.3 specifications. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its safety and sustainability. Manufactured to precise dimensions in the inch system, it guarantees reliable performance and interchangeability in industrial applications.