S-94361A141 3/8"-24 Shoulder Screws

Key Features & Benefits at a Glance

• Superior Strength & Durability: Alloy steel construction with 140,000 psi tensile strength and Rockwell C32 hardness ensures reliable performance in demanding applications.
• Enhanced Corrosion Resistance: Black oxide finish provides a protective layer, extending service life in various industrial environments.
• Precision Thread Fit: Class 3A thread fit with UNF fine threads guarantees secure, vibration-resistant fastening and minimal assembly play.
• Secure & Easy Installation: Socket head with 1/4" hex drive and knurled texture offers excellent grip and torque transmission during installation.
• Accurate Shoulder Alignment: 1/2" shoulder diameter with tight tolerances ensures precise component positioning and smooth rotational movement.
• Environmental Compliance: RoHS 3 and REACH compliant, meeting strict international regulations for hazardous substances.
• Versatile Fastening Solution: Right-hand thread and standard socket head profile make it suitable for a wide range of machinery and equipment assemblies.

Professional Applications & Engineering Value

This 3/8"-24 UNF shoulder screw is engineered to address critical alignment and load-bearing challenges in industrial assemblies. The alloy steel core, hardened to Rockwell C32, provides exceptional resistance to shear and tensile stresses, preventing failure in high-vibration environments. Its Class 3A thread fit and UNF fine thread design ensure tight, secure connections that resist loosening under dynamic loads. The black oxide finish not only enhances corrosion resistance but also reduces galling during installation. Commonly used in precision machinery, automotive components, and robotic systems, this shoulder screw offers reliable pivoting, spacing, and rotational guidance, reducing wear on mating parts and extending equipment lifespan. The knurled head and hex drive facilitate quick, tool-friendly installation in confined spaces.

Specification Summary & Compliance

This shoulder screw adheres to UNF thread standards with a Class 3A thread fit for high precision. Key dimensional tolerances include a shoulder diameter of 1/2" with a tolerance of -0.004" to -0.002" and a shoulder length of 1/4" with a tolerance of -0.005" to 0.005". It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from restricted hazardous substances. The mechanical properties, including 140,000 psi tensile strength, align with industrial fastener requirements for reliable performance in critical applications.