S-91829A770 0-80 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments and long-term reliability.
• Precise component alignment enabled by the 3/8" shoulder with a tight length tolerance of -0.005" to 0", ensuring accurate positioning in assemblies.
• Secure and fine-threaded fastening with the 0-80 UNF thread and Class 2A fit, providing excellent vibration resistance and holding power.
• Versatile installation options thanks to the combination of socket and slotted drive styles, accommodating various tools for easy assembly and maintenance.
• Consistent dimensional accuracy with controlled shoulder diameter and thread specifications, guaranteeing reliable performance in repetitive applications.
• Compliance with global environmental standards including RoHS 3 and REACH, ensuring safety and regulatory acceptance in international markets.
• Right-hand thread design for standard installation procedures, reducing errors and improving efficiency in mechanical setups.

Professional Applications & Engineering Value

This precision shoulder screw is engineered to address critical alignment challenges in industrial assemblies and mechanical systems. The 18-8 Stainless Steel material offers excellent corrosion resistance, making it suitable for applications exposed to moisture or chemicals, while the fine UNF thread and Class 2A fit ensure tight, secure connections that resist loosening under vibration. The 3/8" shoulder length with minimal tolerance provides a reliable pivot or spacer, eliminating misalignment in machinery, robotics, and precision instruments. Its socket and slotted drive design allows for flexible tool use, speeding up installation and maintenance in confined spaces. Ideal for use as an alignment pin screw, it enhances assembly accuracy and reduces wear, delivering long-term engineering value in demanding environments.

Specification Summary & Compliance

This shoulder screw adheres to UNF thread standards with a Class 2A thread fit for consistent engagement and ease of assembly. The shoulder diameter is precisely controlled at 0.0615" with a tolerance of -0.002" to 0", and the shoulder length is 3/8" with a tolerance of -0.005" to 0", ensuring high dimensional accuracy. It is manufactured from 18-8 Stainless Steel and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental responsibility.