S-97763A311 0-80 x 1/8" ASME B18.3 Stainless Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black-Oxide coated 18-8 Stainless Steel, ideal for harsh industrial environments and extending service life.
• Precise and reliable fastening ensured by Class 3A thread fit, minimizing the risk of cross-threading and ensuring consistent assembly quality.
• High tensile strength of 70,000 psi provides excellent load-bearing capacity and resistance to mechanical failure in demanding applications.
• Optimized torque transmission via the hex drive design, allowing for secure installation and reducing the risk of tool slippage and head stripping.
• Fine UNF thread profile offers enhanced grip and vibration resistance in precision assemblies compared to coarse threads.
• Durable Rockwell B55 hardness maintains thread integrity and head shape under repeated stress and installation cycles.
• Full threading along the 1/8" length maximizes grip range and provides versatile fastening options in confined spaces.

Professional Applications & Engineering Value

This 0-80 UNF x 1/8" Black-Oxide 18-8 Stainless Steel screw is engineered to address critical challenges in precision engineering and industrial assembly. The fine thread and Class 3A fit ensure leak-proof and vibration-resistant connections, making it ideal for electronics, instrumentation, and aerospace components where reliability is paramount. The rounded button head and hex drive combine for a low-profile, high-torque solution that prevents snagging and allows for easy access in tight spaces. The Black-Oxide finish on stainless steel not only enhances corrosion resistance but also reduces light reflection, which is beneficial in optical and sensitive equipment. This fastener delivers consistent performance, reducing maintenance needs and assembly errors in high-stakes environments.

Specification Summary & Compliance

This screw features a 0-80 UNF fine thread with a Class 3A thread fit for high precision, a length of 1/8", and is fully threaded. It is manufactured in compliance with ASME B18.3 standards, ensuring dimensional accuracy and interchangeability. The product is also confirmed to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety regulations for industrial use.