S-94361A137 5/16"-24 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 140,000 psi ensures reliable performance in high-stress industrial applications.
• Precision Class 3A thread fit guarantees secure, vibration-resistant fastening with minimal backlash.
• Black oxide finish provides superior corrosion resistance, extending service life in harsh environments.
• Alloy steel construction with Rockwell C32 hardness offers excellent wear resistance and durability.
• Knurled socket head with hex drive allows for easy installation and removal, even in tight spaces.
• 1 1/4" shoulder length ensures precise component alignment and reduces assembly time.
• RoHS 3 and REACH compliance meets stringent environmental regulations for global industrial use.

Professional Applications & Engineering Value

This alloy steel shoulder screw with 5/16"-24 UNF fine threads and Class 3A precision fit is engineered to solve critical alignment and stability challenges in demanding applications. The black oxide finish provides essential corrosion protection for machinery exposed to moisture or chemicals, while the 140,000 psi tensile strength prevents failure under heavy loads. The 1 1/4" shoulder length acts as a precise pivot or spacer in assemblies, reducing wear on moving parts in automation equipment, precision instruments, and heavy-duty manufacturing systems. The knurled socket head with hex drive ensures secure tool engagement, minimizing slip during installation in confined spaces.

Specification Summary & Compliance

This shoulder screw features 5/16"-24 UNF fine threads with Class 3A thread fit for high precision. The shoulder diameter is 3/8" with a tolerance of -0.004" to -0.002", and shoulder length is 1 1/4" with tolerance of -0.005" to 0.005". Manufactured from alloy steel with Rockwell C32 hardness and black oxide finish. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations.