S-94361A149 3/8"-24 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 140,000 psi for reliable performance in high-stress applications, reducing the risk of fastener failure.
• Precision Class 3A thread fit ensures tight, secure connections with minimal backlash, enhancing assembly accuracy and vibration resistance.
• Black oxide finish provides superior corrosion resistance, extending service life in harsh or humid industrial environments.
• Knurled socket head with 1/4" hex drive offers improved grip and torque application, facilitating easier installation and removal without slippage.
• Rockwell C32 hardness delivers excellent wear resistance and durability, maintaining dimensional stability under repeated use.
• RoHS 3 and REACH compliance guarantees adherence to environmental and safety regulations, supporting sustainable and responsible manufacturing practices.
• Fine UNF threads allow for finer adjustments and stronger holding power in precision assemblies compared to coarse threads.

Professional Applications & Engineering Value

This alloy steel shoulder screw is engineered to address critical challenges in precision machinery, such as aligning rotating components and reducing wear in industrial applications. The 2" shoulder length with tight tolerances acts as a precise pivot or spacer, minimizing misalignment and extending equipment lifespan. Featuring a black oxide finish and Class 3A UNF threads, it resists corrosion and ensures secure fastening in high-vibration settings like automotive assemblies or conveyor systems. The knurled socket head enhances torque control during installation, reducing assembly time and improving safety in heavy-duty fastening scenarios where reliability is paramount.

Specification Summary & Compliance

This shoulder screw adheres to UNF thread standards with a Class 3A fit for high precision, and features a shoulder diameter of 1/2" (tolerance: -0.004" to -0.002") and length of 2" (tolerance: -0.005" to 0.005"). It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are met for global industrial use.