S-99022A108 5/16"-18 Cap Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Space-saving low profile design (7/16" height) enables use in compact assemblies without compromising strength
• Precision Class 2B thread fit ensures smooth installation and reliable engagement with mating components
• External hex drive compatibility provides secure tool engagement for efficient installation and removal
• Robust UNC coarse threading (5/16"-18) delivers excellent vibration resistance and faster assembly times
• Full regulatory compliance with RoHS 3 and REACH standards for global industrial applications
• Optimized thread depth (9/32") ensures maximum thread engagement and load distribution

Professional Applications & Engineering Value

This 5/16"-18 UNC cap nut delivers exceptional engineering value through its 18-8 stainless steel composition and low profile design. The corrosion-resistant properties make it ideal for applications exposed to moisture, chemicals, or outdoor elements, while the external hex drive ensures reliable torque transmission during installation. The Class 2B thread fit provides consistent engagement with mating components, reducing the risk of cross-threading and ensuring secure fastening in industrial assembly applications. The coarse UNC thread pattern offers superior performance in high-vibration environments, maintaining clamp force integrity where fine threads might fail. This combination of material strength, precise threading, and compact profile solves critical challenges in machinery, equipment manufacturing, and structural assemblies where space constraints and environmental durability are primary concerns.

Specification Summary & Compliance

This cap nut features precision 5/16"-18 UNC coarse threading with Class 2B thread fit for consistent dimensional accuracy. The external hex drive measures 9/16" across flats with a total height of 7/16" and thread depth of 9/32". Manufactured to standard inch measurement specifications, this fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material transparency for industrial applications worldwide.