S-97768A254 10-32 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with 18-8 stainless steel construction and black oxide finish, ideal for harsh industrial environments.
• Superior thread engagement and reliability due to Class 3A thread fit and 10-32 UNF fine thread, minimizing the risk of loosening under vibration.
• High mechanical strength offering 70,000 psi tensile strength and 35,000 psi minimum shear strength for demanding applications.
• Precise component alignment enabled by the 1/4" diameter shoulder with tight tolerances, ensuring accurate assembly.
• Secure and easy installation with a hex socket drive and knurled head, providing excellent grip and torque transmission.
• Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, ensuring quality and environmental safety.
• Durable performance backed by Rockwell B55 hardness, resisting wear and deformation over time.

Professional Applications & Engineering Value

These 10-32 UNF thread shoulder screws are engineered to address critical alignment and fastening challenges in precision assemblies. The 18-8 stainless steel material, combined with a black oxide finish, provides excellent resistance to corrosion and oxidation, making them suitable for machinery, automotive, and electronics where environmental factors are a concern. The 1/4" shoulder length and precise diameter tolerances allow for accurate positioning of components like gears, pulleys, and bearings, reducing misalignment and wear. With a Class 3A thread fit and fine UNF threads, these screws ensure tight, reliable connections in high-vibration settings, while the hex socket drive and knurled head facilitate easy installation in confined spaces. Ideal for industrial applications requiring high tensile strength and durability, these shoulder screws deliver long-term performance and reduce maintenance needs.

Specification Summary & Compliance

This product features precise dimensions, including a shoulder diameter of 1/4" with tolerance from -0.004" to -0.002", and shoulder length of 3/4" with tolerance from -0.005" to 0.005". The threads are 10-32 UNF with a Class 3A fit for high accuracy. Manufactured in compliance with ASME B18.3 standards, and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations for environmental safety.