S-94035A194 5/16"-18 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ensuring longevity in harsh industrial environments.
• High tensile strength of 70,000 psi provides reliable load-bearing capacity for demanding applications without failure.
• Rockwell B55 hardness offers excellent wear resistance, maintaining dimensional stability under repeated use.
• Precise shoulder fit with tight diameter and length tolerances enables accurate alignment in assemblies, reducing vibration and misalignment.
• Hex socket head design allows for easy installation and high torque application in confined spaces, improving assembly efficiency.
• Class 2A thread fit with UNC coarse threads ensures smooth engagement and secure fastening, minimizing the risk of cross-threading.
• Compliance with RoHS 3 and REACH regulations guarantees environmental safety and suitability for global markets.

Professional Applications & Engineering Value

This 5/16"-18 UNC shoulder screw is engineered to address critical alignment and durability challenges in precision assemblies. The 18-8 stainless steel material, combined with a passivated finish, resists corrosion and oxidation, making it ideal for industrial machinery and automation systems exposed to moisture or chemicals. The 3/8" shoulder diameter with precise tolerances acts as a reliable pivot or spacer, reducing wear on moving parts and ensuring consistent performance in heavy-duty applications. Its hex socket head facilitates secure tightening in tight spaces, while the 70,000 psi tensile strength and Rockwell B55 hardness provide the robustness needed for high-stress environments, minimizing downtime and maintenance costs.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent engagement. Dimensions include a shoulder diameter of 3/8" (tolerance: -0.001" to 0") and shoulder length of 1/8" (tolerance: 0" to 0.002"), ensuring precise assembly. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, supporting safe and sustainable use in various industries.