S-91381A723 5/8"-11 x 1" ASME B18.3 Set Screws
Set 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 black-oxide coating on alloy steel, extending service life in harsh environments
- Precise Class 3A thread fit ensures tight, secure fastening with minimal backlash for reliable holding power
- Surface protection with soft brass tip prevents damage to mating components while maintaining strong clamping force
- High-strength alloy steel construction with Rockwell C28 hardness provides excellent durability under heavy loads
- Easy installation and removal with 5/16" hex drive in headless design, ideal for space-constrained applications
- Coarse UNC thread profile offers quick assembly and reduced cross-threading risk in industrial settings
- Regulatory compliance meets ASME B18.3 specifications and environmental standards for global industrial use
Professional Applications & Engineering Value
This 5/8"-11 UNC set screw delivers exceptional engineering value through its specialized material combination and precision threading. The black-oxide alloy steel body provides superior strength and corrosion resistance, while the brass soft tip eliminates marring on precision shafts and rotating components in machinery applications. The Class 3A thread fit ensures zero-play fastening in high-vibration environments such as motor mounts, gear assemblies, and power transmission systems. The headless hex drive design allows flush mounting in confined spaces where traditional fasteners cannot be used, making it ideal for aerospace, automotive, and heavy equipment applications requiring reliable positioning without protrusions.
Specification Summary & Compliance
This set screw maintains Class 3A thread tolerance per UNC standards with 5/8"-11 coarse threading and 0.625" diameter. Manufacturing complies with ASME B18.3 specifications for dimensional accuracy and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in industrial applications worldwide.
