S-91273A285 3/4"-10 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 from 18-8 stainless steel construction, ideal for harsh industrial environments
- Exceptional mechanical strength with 70,000 psi tensile strength and 35,000 psi shear strength for heavy-duty applications
- Precision shoulder alignment with tight diameter tolerance (-0.004" to -0.002") and length tolerance (±0.005") for accurate component positioning
- Secure installation and removal with knurled head texture and 3/8" hex drive for positive grip and torque transmission
- Reliable thread engagement through Class 2A UNC coarse threads ensuring consistent fastening performance
- Enhanced durability with Rockwell B55 hardness providing excellent wear resistance in demanding applications
- Environmental compliance meeting RoHS 3 and REACH standards for sustainable manufacturing practices
Professional Applications & Engineering Value
This 3/4"-10 UNC shoulder screw delivers critical engineering solutions where precise alignment and rotational control are paramount. The 5" shoulder length with controlled tolerances serves as an accurate locating surface for rotating components in machinery, eliminating the need for additional bushings or spacers. Manufactured from 18-8 stainless steel, it provides excellent corrosion resistance while maintaining 70,000 psi tensile strength under heavy loads. The knurled head texture combined with the 3/8" hex drive ensures secure handling during installation in confined spaces. These shoulder screws are engineered for demanding applications including precision machinery, automation systems, and industrial equipment where reliable component positioning and durability are essential.
Specification Summary & Compliance
This shoulder screw features 3/4"-10 UNC Class 2A threads with coarse thread spacing for reliable engagement. The shoulder maintains precise diameter tolerance (-0.004" to -0.002") and length tolerance (±0.005") for accurate component alignment. Manufactured to industrial standards using 18-8 stainless steel with Rockwell B55 hardness, this fastener complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications.
