S-97345A186 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 industrial environments and extended service life.
- High-strength performance offering 70,000 psi tensile strength and 35,000 psi minimum shear strength for reliable load-bearing in demanding applications.
- Precise Class 3A thread fit ensures secure, vibration-resistant fastening with minimal backlash in assemblies.
- Knurled socket head with hex drive provides excellent grip and torque transmission, reducing tool slippage during installation.
- Accurate shoulder dimensions with tight tolerances for precise alignment and spacing of components like gears and pulleys.
- Compliance with major standards including ASME B18.3, RoHS 3, and REACH, ensuring quality and environmental safety for global supply chains.
- Fine 10-32 UNF right-hand thread delivers superior holding power in materials where coarse threads may not be suitable.
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical challenges in precision machinery, such as misalignment and component wear. The Class 3A thread fit and fine 10-32 UNF thread provide exceptional clamping force and resistance to loosening under vibration, making it ideal for rotating assemblies in automotive, aerospace, and electronics. The knurled socket head enhances tool engagement, reducing installation time and damage risks. With a 1 1/4" shoulder length and tight diameter tolerances, it ensures accurate positioning of bearings and linkages, minimizing maintenance downtime and improving overall system reliability in corrosive or high-stress environments.
Specification Summary & Compliance
This shoulder screw features a Class 3A thread fit per UNF standards, with a shoulder diameter of 1/4" (tolerance: -0.004" to -0.002") and shoulder length of 1 1/4" (tolerance: -0.005" to 0.005"). It meets ASME B18.3 specifications for dimensional accuracy and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring no restricted substances are used in manufacturing.
