S-91771A164 1-72 x 1/8" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments.
• High tensile strength of 80,000 psi ensures reliable performance under significant mechanical stress.
• Precision Class 2A thread fit guarantees consistent, secure fastening with minimal risk of cross-threading.
• 82° undercut flat head design provides a flush, low-profile finish that enhances safety and aesthetics.
• Fully threaded 1-72 UNF fine thread offers maximum grip and holding power in thin materials.
• Phillips No. 0 drive allows for efficient installation with common tools, reducing assembly time.
• Compliance with ASME B18.6.3, RoHS 3, and REACH ensures product reliability and environmental safety for global supply chains.

Professional Applications & Engineering Value

This 1-72 UNF flat head screw is engineered to address critical challenges in precision assembly and corrosive environments. The passivated 18-8 stainless steel provides excellent resistance to oxidation and chemical exposure, making it suitable for electronics, aerospace, and marine applications where durability is paramount. The fully threaded fine UNF design and 82° countersink angle ensure a secure, flush mount that prevents snagging and maintains structural integrity in tight spaces. With its high tensile strength and Rockwell B80 hardness, it reliably withstands vibration and load stresses, reducing maintenance needs and downtime in industrial machinery and equipment.

Specification Summary & Compliance

This screw features a 1-72 UNF fine thread with Class 2A fit for precise dimensional accuracy, ensuring consistent performance in threaded assemblies. It is manufactured in compliance with ASME B18.6.3 standards and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious and regulated industries.