S-97345A911 3/4"-10 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 thanks to 316 stainless steel construction, ideal for harsh chemical and marine environments.
- Exceptional mechanical strength with a tensile strength of 70,000 psi and shear strength of 35,000 psi for reliable performance under heavy loads.
- Precise alignment and smooth rotation ensured by the Class 3A thread fit and standard shoulder fit, reducing wear and assembly time.
- Easy installation and removal with a 1/2" hex drive and knurled head for improved grip, even in tight spaces.
- Durable, long-lasting performance supported by Rockwell B79 hardness, maintaining integrity through repeated use.
- Broad compatibility and reliability with UNC coarse threads and compliance to ASME B18.3 standards for consistent quality.
- Environmentally responsible sourcing as it is RoHS 3 and REACH compliant, meeting strict regulatory requirements.
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical challenges in industrial fastening, where precision and durability are paramount. Its 3/4"-10 UNC coarse thread with Class 3A fit ensures tight, secure connections that resist loosening under vibration, making it ideal for machinery, automotive assemblies, and conveyor systems. The 1" shoulder diameter and 3 3/4" shoulder length provide stable pivoting and alignment in rotating parts, reducing friction and component wear. With a knurled head and 1/2" hex drive, installation is straightforward, minimizing downtime. The corrosion-resistant properties of 316 stainless steel extend service life in demanding environments, from chemical processing to outdoor equipment, delivering reliable mechanical performance and cost savings through reduced maintenance.
Specification Summary & Compliance
This shoulder screw adheres to tight dimensional tolerances, including a Class 3A thread fit for high precision and a shoulder diameter tolerance of -0.004" to -0.002" with length tolerance of -0.005" to 0.005". It conforms to ASME B18.3 manufacturing standards and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material quality.
