S-92765A002 4-40 x 1/8" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with Class 3A thread fit ensuring tight, reliable fastening in demanding applications
• Enhanced corrosion resistance from the black-oxide finish on alloy steel, extending service life in various environments
• High-strength durability with Rockwell C45 hardness, resisting wear and deformation under load
• Secure, flush installation thanks to the headless and oval tip design, preventing protrusion and improving safety
• Easy installation and removal with the 0.050" hex drive, allowing for efficient tool engagement in confined spaces
• Wide compatibility with coarse UNC 4-40 threads, ideal for general-purpose industrial assemblies
• Regulatory peace of mind by meeting ASME B18.3, RoHS 3, and REACH standards for quality and environmental safety

Professional Applications & Engineering Value

This 4-40 UNC set screw is engineered to address common industrial challenges like component slippage and corrosion-induced failure. Crafted from black-oxide alloy steel, it offers robust resistance to rust and wear, making it suitable for machinery, automotive, and electronics where exposure to oils or moisture is frequent. The headless hex drive and oval tip enable flush mounting, reducing the risk of interference in compact assemblies. With a coarse thread and Class 3A fit, it ensures quick, secure fastening in right-hand thread applications, minimizing assembly time while maximizing holding strength. Ideal for securing gears, pulleys, and collars, this screw enhances operational reliability and reduces maintenance needs.

Specification Summary & Compliance

This set screw adheres to precise inch system dimensions, including a 1/8" length and 0.050" hex drive size. It features UNC 4-40 coarse threads with a Class 3A thread fit for high precision and consistency. Manufacturing complies with ASME B18.3 specifications, ensuring dimensional accuracy and performance. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting strict environmental and safety standards for global industrial use.