S-97768A253 10-24 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from 18-8 stainless steel construction, ideal for harsh industrial environments
• Superior wear resistance and reduced galling with the black oxide finish, extending service life
• High-strength performance with 70,000 psi tensile and 35,000 psi shear strength for demanding applications
• Precise alignment and secure pivoting ensured by the accurately machined shoulder with standard fit
• Reliable, vibration-resistant assembly due to the Class 3A thread fit for tight, secure fastening
• Easy installation and removal with the hex socket drive and knurled head for superior grip
• Broad industry compliance meeting ASME B18.3 standards and RoHS/REACH environmental regulations

Professional Applications & Engineering Value

This 10-24 UNC shoulder screw is engineered to solve critical alignment and durability challenges in precision assemblies. The 18-8 stainless steel core provides excellent resistance to corrosion and oxidation, while the black oxide finish adds a protective layer that minimizes friction and wear. The precisely machined shoulder (1/4" diameter, 3/4" length) acts as a dependable pivot or locating dowel, preventing component misalignment in machinery, automotive, and aerospace applications. Its Class 3A thread fit and coarse UNC thread ensure a secure, vibration-resistant connection, making it a reliable choice for high-stress environments where failure is not an option.

Specification Summary & Compliance

This shoulder screw features a 10-24 UNC thread with a Class 3A fit for high precision. The shoulder diameter is 1/4" with a tolerance of -0.004" to -0.002", and the shoulder length is 3/4" with a tolerance of -0.005" to 0.005". It is manufactured to meet ASME B18.3 specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations.