S-94128A174 3/8"-16 Shoulder Screws

Key Features & Benefits at a Glance

• Enhanced Durability & Strength: Crafted from high-strength alloy steel with Rockwell C32 hardness, ensuring reliable performance in demanding industrial applications.
• Superior Thread Precision: Class 3A thread fit provides tighter tolerances for secure, vibration-resistant assemblies, reducing the risk of loosening.
• Precise Shoulder Alignment: Features a precisely machined shoulder with a diameter of 1/2" and length of 1/4", offering accurate component location and smooth rotational movement.
• Space-Saving Headless Design: The headless slotted drive allows for a low-profile installation, ideal for compact assemblies where clearance is limited.
• Wide Compatibility: 3/8"-16 UNC coarse thread and right-hand direction ensure easy integration with standard components and tools.
• Environmental Compliance: Meets RoHS 3 and REACH standards, supporting sustainable and safe manufacturing practices.
• Optimized Thread Engagement: 5/8" thread length provides ample engagement for strong, stable connections in various materials.

Professional Applications & Engineering Value

This precision shoulder screw is engineered to address critical challenges in machinery assembly, such as maintaining exact alignment and reducing wear in rotating parts. The alloy steel construction and Rockwell C32 hardness deliver exceptional resistance to shear and fatigue, making it ideal for high-stress environments like automotive fixtures, conveyor systems, and precision tooling. The headless slotted drive and Class 3A thread fit ensure easy installation and reliable performance, minimizing downtime. Its UNC coarse thread and right-hand threading facilitate quick assembly, while the precise shoulder dimensions prevent misalignment, enhancing the longevity and efficiency of industrial equipment.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 3A thread fit for high precision. Key dimensions include a thread diameter of 0.375", shoulder diameter of 1/2" (tolerance: -0.001" to 0"), and shoulder length of 1/4" (tolerance: 0" to 0.005"), ensuring consistent performance. It is manufactured to comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, supporting safe and sustainable use in global industrial applications.