S-94775A030 5/16"-18 Thumb Nuts

Key Features & Benefits at a Glance

• Effortless hand-tightening with a 1" knurled round head for secure grip in low-clearance applications
• Superior corrosion resistance from black-oxide steel, extending service life in harsh industrial environments
• Reliable thread engagement with Class 2B thread fit and coarse UNC threads for quick assembly and vibration resistance
• Space-saving low profile design at 3/8" height for compact assemblies without compromising strength
• Enhanced installation flexibility with 4 precision 3/16" holes for secondary securing or visual alignment
• Full regulatory compliance with RoHS 3 and REACH standards for global industrial use
• Heavy-duty performance with right-hand UNC threads maintaining consistent torque in high-stress applications

Professional Applications & Engineering Value

Engineered for industrial assembly challenges, this black-oxide steel thumb nut combines material durability with user-centric design. The knurled head texture ensures positive grip even with oily hands or gloves, reducing installation time in production lines. Its low profile and coarse UNC threading prevent cross-threading while accommodating thermal expansion in machinery. The black-oxide finish provides corrosion resistance for outdoor equipment, agricultural machinery, and automotive assemblies. Four strategically placed holes allow for wire locking or alignment checks in safety-critical applications. This thumb nut solves common issues of tool-free maintenance access and vibration-induced loosening in heavy-duty industrial environments.

Specification Summary & Compliance

Manufactured to UNC coarse thread standards with Class 2B thread fit for consistent engagement. Dimensions include 1" head diameter, 3/8" height, and 5/16"-18 thread size. Compliant with RoHS 3 (2015/863/EU) under exemption 6(a)-I and REACH (EC 1907/2006) standards. Right-hand thread direction ensures compatibility with standard industrial components.