S-97345A697 3/8"-16 ASME B18.3 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 with 316 stainless steel construction, ideal for harsh environments and extended service life
- Precise component alignment ensured by the 1/2" shoulder with tight diameter and length tolerances for reliable assembly
- High-strength performance with 70,000 psi tensile and 35,000 psi shear strength for demanding mechanical applications
- Secure, high-precision threading via Class 3A UNC coarse thread fit, providing excellent vibration resistance and load distribution
- Easy installation and removal with a 1/4" hex drive and knurled socket head for superior grip and torque application
- Compliance with major industrial standards including ASME B18.3, ensuring consistent quality and interchangeability
- Environmentally safe manufacturing with RoHS 3 and REACH compliance, meeting global regulatory requirements
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical challenges in precision machinery, such as maintaining alignment in rotating assemblies and reducing wear in linkages. The 1/2" diameter shoulder with minimal tolerance provides a stable bearing surface, preventing lateral movement and simplifying assembly in automated equipment. Its Class 3A UNC coarse thread ensures rapid installation and robust performance under dynamic loads, while the knurled socket head allows for high-torque applications without slippage. Ideal for use in industrial fastening within automotive, aerospace, and food processing sectors, this component offers reliable corrosion resistance and durability, minimizing maintenance downtime and enhancing operational efficiency.
Specification Summary & Compliance
The screw features a Class 3A thread fit per UNC standards, with shoulder diameter tolerance of -0.004" to -0.002" and length tolerance of ±0.005" for precise dimensional control. Manufactured in compliance with ASME B18.3 specifications, it also meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring material safety and sustainability.
