S-92949A653 3/8"-24 x 1 1/4" ASME B18.3 Stainless Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh environments
• Exceptional thread reliability with Class 3A UNF fine threads ensuring precise, vibration-resistant connections
• High mechanical strength delivering 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
• Secure installation through 7/32" hex drive design providing positive torque transmission and reduced cam-out risk
• Full thread engagement along the 1 1/4" length for maximum load distribution and joint integrity
• Rounded button head profile offering a finished appearance while minimizing surface protrusion
• Regulatory compliance meeting ASME B18.3 specifications and environmental standards including RoHS 3 and REACH

Professional Applications & Engineering Value

This 3/8"-24 UNF Class 3A rounded head screw delivers critical performance advantages in industrial settings where corrosion resistance and thread precision are paramount. The combination of 18-8 stainless steel material and passivated finish provides exceptional protection against chemical exposure and atmospheric corrosion, making these hex drive screws ideal for machinery, marine equipment, and food processing applications. The fine thread spacing and Class 3A thread fit ensure superior vibration resistance in dynamic load conditions, while the fully threaded design maximizes clamping force distribution. With 70,000 psi tensile strength, these industrial screws maintain structural integrity under significant mechanical stress, reducing maintenance frequency and downtime in critical assemblies.

Specification Summary & Compliance

This precision-engineered rounded head screw features 3/8"-24 UNF Class 3A threads with fine thread spacing, manufactured to exacting dimensional standards. The component maintains Rockwell B55 hardness and achieves 70,000 psi tensile strength through controlled manufacturing processes. Compliance includes conformance to ASME B18.3 specifications for dimensional accuracy and mechanical properties, along with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance, ensuring suitability for regulated industries and international markets.