S-91613A455 1/4"-20 x 3/4" ASME B18.6.3 Stainless Steel Fillister Head Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and chemical exposure
• Exceptional mechanical strength delivering 100,000 psi tensile strength and Rockwell B100 hardness for reliable performance under heavy loads
• Enhanced durability and longevity through passivated surface finish, providing added protection against rust and wear
• Precise and secure fastening with Class 2A thread fit and UNC coarse threading, ensuring consistent engagement and reduced cross-threading risks
• Optimized head design featuring a high, narrow fillister profile with slotted drive for efficient installation and improved torque transmission
• Full compliance with industry standards including ASME B18.6.3, RoHS 3, and REACH, guaranteeing quality and environmental safety
• Versatile right-hand threading with fully threaded 3/4" length for maximum grip and adaptability across various assembly applications

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these 316 stainless steel fillister head slotted screws address critical challenges in machinery, marine, and chemical processing applications. The high corrosion resistance of 316 grade material prevents degradation from moisture, salts, and chemicals, significantly extending service life in aggressive conditions. The rounded fillister head with slotted drive offers a low-profile yet robust fastening solution, allowing for efficient installation in confined spaces while maintaining high tensile strength. The UNC coarse thread design ensures quick assembly and reliable performance in vibration-prone settings, reducing maintenance downtime. These screws provide engineering value through consistent performance in heavy-duty applications where reliability and compliance with ASME B18.6.3 specifications are paramount.

Specification Summary & Compliance

This 1/4-20 UNC screw features precise Class 2A thread fit tolerances and coarse thread spacing for optimal performance. Manufacturing adheres to ASME B18.6.3 specifications for dimensional accuracy and quality. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence for industrial use.