S-91273A147 10-32 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 18-8 stainless steel construction, ideal for harsh environments and long-term reliability
- Precise alignment and spacing ensured by the 1-1/4" shoulder length with tight tolerances, reducing assembly errors
- High-strength performance with 70,000 psi tensile strength and 35,000 psi shear strength for demanding mechanical applications
- Fine thread engagement with 10-32 UNF Class 2A threads providing secure, vibration-resistant fastening
- Easy installation and removal thanks to the hex socket drive and knurled head for improved grip
- Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe use in regulated industries
- Consistent hardness and durability with Rockwell B55 rating, maintaining performance under repeated stress
Professional Applications & Engineering Value
This precision shoulder screw is engineered to address critical alignment and load-bearing challenges in industrial assemblies. The 18-8 stainless steel material offers excellent corrosion resistance, making it suitable for applications in machinery, automotive, and electronics where exposure to moisture or chemicals is a concern. The 1-1/4" shoulder length provides a stable pivot or spacer, ensuring components remain accurately positioned without misalignment. Combined with the 10-32 UNF fine thread and Class 2A fit, it delivers reliable clamping force and vibration resistance, reducing maintenance needs. The hex drive and knurled head facilitate quick installation in tight spaces, enhancing productivity in automated or manual assembly lines.
Specification Summary & Compliance
This shoulder screw adheres to UNF thread standards with a Class 2A thread fit for consistent precision. Key dimensions include a shoulder diameter of 3/16" with a tolerance of -0.004" to -0.002" and a shoulder length of 1-1/4" with a tolerance of -0.005" to 0.005". It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and suitability for global industrial markets.
