S-97345A291 3-48 Shoulder Screws
Shoulder Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance in harsh environments thanks to 316 stainless steel construction
- Exceptional mechanical strength with 70,000 psi tensile and 35,000 psi shear capacity for demanding applications
- Precise assembly and alignment ensured by the Class 3A thread fit and consistent shoulder diameter
- Secure, non-slip fastening facilitated by the knurled head and 5/64" hex socket drive
- Reliable performance in high-stress applications due to Rockwell B79 hardness and coarse UNC threading
- Extended service life with a 1 1/2" shoulder length providing stable bearing surfaces
- Compliance with global standards including RoHS 3 and REACH for safe, regulated use
Professional Applications & Engineering Value
This 316 Stainless Steel Shoulder Screw is engineered to solve critical alignment and durability challenges in industrial settings. The 3-48 UNC coarse thread with Class 3A precision fit ensures secure, vibration-resistant connections in machinery, while the knurled socket head allows for high-torque installation without stripping. Its 1 1/2" shoulder length acts as a precise pivot or spacer in assemblies, reducing wear on moving parts. The 70,000 psi tensile strength and 35,000 psi shear strength make it ideal for high-load applications like robotics, automotive jigs, and conveyor systems, where corrosion resistance and long-term reliability are paramount. This shoulder screw delivers consistent performance under demanding conditions, minimizing maintenance and downtime.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 3A thread fit for tight tolerances. Dimensions include a shoulder diameter of 1/8" (tolerance: -0.004" to -0.002") and shoulder length of 1 1/2" (tolerance: -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 of hazardous substances for safe use in various industrial and engineering applications.
