S-91794A065 1-72 x 3/16" ASME B18.6.3 Stainless Steel Fillister Head Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh environments.
• Enhanced torque transmission through the slotted drive style, providing secure installation with standard screwdrivers.
• Precise thread engagement with Class 2A fit and UNF fine threads, minimizing cross-threading and ensuring vibration resistance.
• High tensile strength of 70,000 psi combined with Rockwell B55 hardness, offering robust load-bearing capacity for demanding applications.
• Optimized head design featuring a high, narrow fillister profile for improved clearance and flush mounting in confined spaces.
• Full compliance with ASME B18.6.3 and environmental regulations like RoHS 3 and REACH, guaranteeing industry-standard quality and safety.
• Consistent dimensional accuracy with fully threaded shank and right-hand threading, enabling rapid assembly and interchangeability.

Professional Applications & Engineering Value

Engineered for precision-driven industries, these 1-72 UNF slotted fillister head screws address critical challenges in electronics, aerospace, and medical device assembly. The 18-8 stainless steel material and passivated finish provide exceptional resistance to oxidation and chemical exposure, reducing maintenance costs in humid or corrosive settings. The fine thread spacing and Class 2A thread fit enhance grip strength on thin materials, preventing loosening under dynamic loads. With a high, narrow rounded head profile, these screws facilitate secure fastening in recessed or counterbored holes, streamlining installation in compact machinery and instrumentation. Ideal for applications requiring ASME B18.6.3 compliance, they ensure repeatable performance in automated production lines and high-vibration environments.

Specification Summary & Compliance

This screw adheres to Class 2A thread fit tolerances per UNF (Unified National Fine) standards, with a thread size of 1-72 and full threading for consistent engagement. Manufacturing follows ASME B18.6.3 specifications, ensuring dimensional precision for head diameter (0.118"), length (3/16"), and thread diameter (0.073"). The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted hazardous substances for safe use in global markets.