S-94128A158 10-32 Shoulder Screws

Key Features & Benefits at a Glance

• Enhanced Durability – Manufactured from high-strength alloy steel with Rockwell C32 hardness for superior wear resistance and longevity in demanding environments.
• Precise Alignment – Features a precise 1/4" shoulder diameter with tight tolerance (-0.001" to 0") to ensure accurate component positioning and reduced vibration.
• Secure Fastening – Class 3A thread fit provides a tighter, more reliable connection compared to standard fits, minimizing the risk of loosening under stress.
• Efficient Assembly – Slotted drive design allows for quick and easy installation with standard tools, reducing assembly time and labor costs.
• Versatile Thread Design – 10-32 UNF fine thread offers excellent holding power in materials where coarse threads may not be suitable, enhancing application flexibility.
• Regulatory Compliance – Meets RoHS 3 and REACH standards, ensuring environmental safety and suitability for global industrial markets.
• Optimized Shoulder Length – 5/8" shoulder length with minimal tolerance (0" to 0.005") provides consistent support and spacing in assemblies.

Professional Applications & Engineering Value

This 10-32 UNF fine thread shoulder screw is engineered to address critical challenges in precision assemblies, such as misalignment and component wear. The alloy steel construction, combined with Rockwell C32 hardness, ensures exceptional strength and resistance to deformation under high loads. The headless design and slotted drive facilitate seamless integration in confined spaces, while the Class 3A thread fit guarantees minimal backlash and secure fastening in dynamic applications like robotics, automotive systems, and industrial machinery. By providing a reliable shoulder diameter and fine thread, it reduces maintenance needs and enhances operational efficiency, making it ideal for B2B procurement in technical sectors.

Specification Summary & Compliance

This shoulder screw adheres to UNF thread standards with a Class 3A fit for high precision, ensuring tight tolerances on thread diameter (0.19") and spacing. The shoulder diameter is maintained at 1/4" with a tolerance of -0.001" to 0", and the shoulder length is 5/8" with a tolerance of 0" to 0.005" for consistent performance. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious industrial applications without hazardous substances.