S-97345A674 3/8"-24 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
- Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable performance under high stress
- Precise Class 3A thread fit ensures secure, vibration-resistant fastening in critical assemblies
- Knurled socket head with 1/4" hex drive provides excellent grip and easy installation, even in tight spaces
- Accurate shoulder dimensions with tight tolerances for consistent alignment and smooth rotational movement
- Compliance with ASME B18.3 standards guarantees interchangeability and engineering reliability
- RoHS 3 and REACH compliant for safe use in regulated industries and global market acceptance
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address common industrial challenges such as misalignment, corrosion-induced failure, and assembly instability. Its 3/8"-24 UNF fine thread and Class 3A fit provide superior clamping force and vibration resistance in precision machinery, automotive components, and electronic enclosures. The knurled socket head enhances tool engagement, reducing slippage during high-torque applications. With a robust 1/2" shoulder diameter and 1-1/4" shoulder length, it ensures accurate pivoting and spacing in linkages, bearings, and rotating assemblies, making it an ideal industrial fastener for demanding environments where reliability and corrosion resistance are critical.
Specification Summary & Compliance
This shoulder screw features a 3/8"-24 UNF fine thread with Class 3A precision fit, ensuring tight dimensional accuracy. The shoulder diameter tolerance is -0.004" to -0.002", and shoulder length tolerance is -0.005" to 0.005" for consistent performance. Manufactured in compliance with ASME B18.3 specifications, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulatory standards, confirming its suitability for environmentally conscious and safety-focused industrial applications.
