S-90324A086 10-24 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and extended service life.
• Precise component alignment ensured by the 1/2" shoulder with tight length tolerance (±0.005") and standard shoulder fit.
• High-strength performance with 70,000 psi tensile strength and 35,000 psi minimum shear strength for demanding applications.
• Secure left-hand thread engagement with Class 3A fit on the 10-24 UNC coarse thread, preventing loosening under counter-clockwise forces.
• Easy installation and removal using a standard 1/8" hex key drive and knurled head for enhanced grip.
• Reliable material durability backed by Rockwell B55 hardness, offering excellent wear resistance.
• Global compliance assurance meeting RoHS 3 and REACH regulations for safe and unrestricted industrial use.

Professional Applications & Engineering Value

This 10-24 UNC left-hand thread shoulder screw is engineered to solve critical alignment and retention challenges in industrial machinery. The 18-8 stainless steel material provides excellent corrosion resistance, reducing maintenance in humid or chemical-exposed settings. Its 1/2" shoulder length with precise tolerances acts as a reliable pivot or spacer, ensuring accurate positioning of components like gears, bearings, and linkages. The left-hand thread is particularly valuable in applications where standard right-hand threads may loosen due to rotational forces, such as in certain motors or rotating assemblies. Combined with the hex socket drive and knurled head, it allows for secure installation in confined spaces, making it a versatile choice for automation, aerospace, and precision equipment manufacturing.

Specification Summary & Compliance

This shoulder screw adheres to UNC coarse thread standards with a Class 3A thread fit for superior engagement. The shoulder diameter is 1/4" with a tolerance of -0.004" to -0.002", and the shoulder length is 1/2" with a tolerance of -0.005" to 0.005". It is manufactured in the inch system and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are met for global industrial applications.