S-97345A275 3-48 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh chemical and marine environments
• Precise alignment and smooth rotation ensured by the 1/8" diameter shoulder with tight tolerance fit
• High-strength performance with 70,000 psi tensile and 35,000 psi shear strength for demanding mechanical applications
• Secure, non-slip fastening provided by the knurled socket head and 5/64" hex drive
• Reliable thread engagement with Class 3A fit and 3-48 UNC coarse threads for vibration resistance
• Environmental compliance assurance meeting RoHS 3 and REACH standards for global manufacturing
• Optimized for automated assembly with standard socket head profile and right-hand thread direction

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw delivers critical engineering value in precision assemblies where alignment, corrosion resistance, and mechanical strength are paramount. The 3-48 UNC coarse thread with Class 3A fit provides superior vibration resistance in rotating machinery, while the precisely machined shoulder maintains component spacing in bearings, gears, and linkages. The knurled socket head design ensures secure tool engagement during high-torque installation, preventing cam-out in automated production environments. With exceptional 70,000 psi tensile strength, this fastener solves durability challenges in industrial equipment, medical devices, and marine applications where failure is not an option.

Specification Summary & Compliance

Manufactured to precision standards with Class 3A thread fit and shoulder diameter tolerance of -0.004" to -0.002". Features 3-48 UNC coarse threads with 5/32" thread length and standard shoulder fit. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Material hardness rated at Rockwell B79 with mechanical properties verified to meet specified strength requirements.