S-93886A105 1/4"-28 Thumb Nuts

Key Features & Benefits at a Glance

• Tool-free installation and adjustment with a knurled round head design for superior manual grip in tight spaces
• Excellent chemical and moisture resistance due to durable Acetal Plastic construction, ensuring long-term reliability
• Precise 1/4"-28 UNF fine thread engagement with Class 2B fit for secure, vibration-resistant fastening in precision assemblies
• Wide operational temperature tolerance from 32° to 180° F, suitable for various industrial environments
• Full compliance with REACH and RoHS 3 directives, guaranteeing safety and environmental standards for global supply chains
• Standard inch sizing and right-hand threading for easy integration with existing equipment and components
• Lightweight and non-corrosive properties ideal for applications where metal fasteners are unsuitable

Professional Applications & Engineering Value

This black Acetal Plastic thumb nut is engineered to solve common assembly challenges in electronics, medical devices, and light machinery. The knurled round head provides exceptional tactile control for manual tightening without tools, reducing installation time and minimizing the risk of damage to sensitive components. Made from high-strength Acetal Plastic, it offers superior resistance to chemicals, wear, and moisture compared to standard plastics, ensuring dependable performance in humid or corrosive environments. The 1/4"-28 UNF fine thread and Class 2B thread fit deliver precise, secure connections that resist loosening under vibration, making it an ideal choice for precision adjustments and frequent maintenance access points. Its fully threaded design and right-hand direction ensure compatibility with a wide range of inch-based industrial equipment, enhancing versatility across sectors.

Specification Summary & Compliance

This thumb nut features a 1/4"-28 UNF fine thread with Class 2B thread fit for consistent dimensional accuracy and secure fastening. It adheres to standard inch measurement systems and is manufactured from Acetal Plastic with a black color and knurled round head profile. The product is fully compliant with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) regulations, ensuring it meets stringent environmental and safety standards for hazardous substance restrictions.