S-97345A755 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 industrial environments and chemical exposure
- Exceptional mechanical strength with 70,000 psi tensile and 35,000 psi shear ratings for reliable load-bearing in demanding applications
- Precision Class 3A thread fit ensures tight, secure fastening with minimal backlash in assemblies requiring exact alignment
- Knurled socket head design provides enhanced grip and slip resistance during installation with standard hex tools
- Accurate shoulder dimensions with controlled diameter and length tolerances for consistent pivot or bearing surface performance
- Compliance with ASME B18.3 standards guarantees interchangeability and reliability in OEM and replacement scenarios
- Environmental regulation adherence through RoHS 3 and REACH compliance for global supply chain integration
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw delivers critical performance in applications where corrosion resistance and precision alignment are paramount. The UNC coarse thread with Class 3A fit ensures rapid assembly with high clamping force, while the 5/8" shoulder diameter and 1/2" shoulder length provide a stable bearing surface for rotating components. Engineers specify this socket head shoulder screw in machinery, automation systems, and conveyor assemblies to minimize wear, maintain concentricity, and withstand high tensile and shear stresses. The knurled head texture enhances tool engagement, reducing installation time and improving worker safety in high-vibration environments.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications, this shoulder screw features a 3/8"-16 UNC thread with Class 3A tolerance for precision fit. The shoulder maintains a diameter of 5/8" with tolerance of -0.004" to -0.002" and length of 1/2" with tolerance of -0.005" to 0.005". Material hardness is Rockwell B79. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring suitability for regulated industries and international markets.
