S-97345A451 10-32 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 chemical exposure
- Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable, heavy-duty applications
- Precise Class 3A thread fit ensures tight tolerances and secure fastening in high-vibration assemblies
- Enhanced grip and torque application with a knurled hex socket head, reducing tool slippage during installation
- Durable wear resistance due to Rockwell B79 hardness, extending service life in repetitive use scenarios
- Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for safe, global industrial use
- Accurate shoulder alignment with controlled diameter and length tolerances, facilitating precise component positioning
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical challenges in precision machinery, such as misalignment and corrosion-induced failure. The 10-32 UNF fine thread and Class 3A fit provide superior clamping force and vibration resistance in assemblies like rotating shafts, bearings, and linkages. The knurled hex socket head allows for high-torque installation without stripping, while the corrosion-resistant material ensures longevity in moist or chemical-laden environments, such as marine equipment, food processing lines, and pharmaceutical machinery. By integrating a standardized shoulder design per ASME B18.3, it streamlines maintenance and reduces downtime in industrial fastener systems.
Specification Summary & Compliance
The screw features a 10-32 UNF thread with Class 3A fit for precise engagement, alongside a shoulder diameter of 1/4" (tolerance: -0.004" to -0.002") and length of 3/8" (tolerance: -0.005" to 0.005"). Manufactured in compliance with ASME B18.3 specifications, it also adheres to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe and sustainable use.
