S-97345A311 5-40 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 offering 70,000 psi tensile and 35,000 psi shear strength for reliable load-bearing applications
- Precise Class 3A thread fit ensures tight, secure fastening with minimal vibration loosening in assemblies
- Convenient hex socket drive with 3/32" size and knurled head for easy installation and anti-slip handling
- Durable Rockwell B79 hardness provides excellent wear resistance and long-term performance under stress
- Regulatory compliance with RoHS 3 and REACH standards for safe use in global markets and sensitive applications
- Accurate shoulder dimensions with controlled tolerances for consistent alignment and spacing in precision machinery
Professional Applications & Engineering Value
Engineered for demanding industrial settings, this 316 stainless steel shoulder screw combines corrosion resistance with high strength to solve critical challenges in machinery assembly, pivoting mechanisms, and precision equipment. The 5-40 UNC coarse threads and Class 3A fit deliver secure fastening with reduced risk of cross-threading, while the hex socket drive and knurled head enable efficient installation in confined spaces. Ideal for applications requiring a durable shoulder for rotational movement or component spacing—such as in conveyor systems, automotive jigs, and electronic enclosures—this screw maintains integrity under vibration and load, minimizing maintenance downtime.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 3A thread fit for precision tolerance. Dimensions include a 5/32" shoulder diameter (-0.004" to -0.002" tolerance) and 5/16" shoulder length (-0.005" to 0.005" tolerance). It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental and safety standards for industrial use.
