S-92088A113 2-56 Thumb Nuts

Key Features & Benefits at a Glance

• Enhanced Grip & Easy Manual Operation: Knurled round head design ensures secure handling without tools, speeding up assembly in tight spaces.
• Superior Corrosion Resistance: Black Oxide 18-8 Stainless Steel construction provides excellent durability against rust and harsh industrial environments.
• Reliable Thread Engagement: Class 2B thread fit guarantees consistent, secure fastening with reduced cross-threading risks in coarse UNC applications.
• Broad Compatibility: 2-56 UNC coarse threading and right-hand direction ensure seamless integration with standard inch-system components.
• Optimized Dimensions for Stability: 3/8" head diameter and 1/4" height offer a balanced profile for robust performance in compact assemblies.
• Full Thread Coverage: Fully threaded design maximizes contact area for even load distribution and vibration resistance.
• Compliant & Safe Usage: Meets REACH and RoHS 3 standards, ensuring environmental safety and regulatory adherence for global supply chains.

Professional Applications & Engineering Value

This 2-56 UNC thumb nut is engineered to address common challenges in precision assembly, such as frequent adjustments and exposure to corrosive elements. The Black Oxide 18-8 Stainless Steel material combats oxidation in humid or chemical-laden settings, extending service life in electronics enclosures, instrumentation panels, and machinery covers. Its knurled round head and coarse thread design enable quick, tool-free installation, reducing downtime in maintenance-heavy industries. With a Class 2B thread fit, it ensures reliable engagement in right-hand threaded applications, minimizing loosening under vibration. Ideal for OEM and MRO uses, this thumb nut delivers consistent performance where durability and ease of access are critical.

Specification Summary & Compliance

This thumb nut adheres to UNC coarse thread standards with a 2-56 thread size and Class 2B thread fit for precise dimensional accuracy. It is manufactured from 18-8 Stainless Steel with a black oxide finish and features a round, knurled head (3/8" diameter, 1/4" height). The product fully complies with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) regulations, ensuring it meets stringent environmental and safety requirements for industrial use.