S-95150A106 1/4"-28 Thumb Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh environments
• Enhanced grip and torque application through deep knurling on the round head, enabling secure hand-tightening without tools
• Precise, reliable thread engagement with Class 2B thread fit and 1/4"-28 UNF fine threading for vibration resistance and consistent fastening
• Integrated flange design distributes load evenly, reducing surface damage and providing stable seating
• Full threading and right-hand direction allow for quick installation and removal, boosting assembly line efficiency
• Compliance with REACH and RoHS 3 standards ensures environmental safety and suitability for regulated industries
• Optimized dimensions (9/16" head diameter, 3/8" height) for easy handling and space-saving integration

Professional Applications & Engineering Value

This flanged thumb nut is engineered to address common assembly challenges in industrial settings, such as the need for rapid, tool-free fastening in maintenance or prototyping. The 18-8 stainless steel material offers excellent resistance to rust and corrosion, making it ideal for applications in electronics enclosures, machinery panels, and outdoor equipment where durability is critical. The fully threaded design and UNF fine thread (1/4"-28) ensure a tight, secure fit that minimizes loosening under vibration, while the knurled head provides a non-slip surface for confident hand-tightening. By combining Class 2B thread fit with a flanged profile, this nut reduces the risk of damage to sensitive surfaces and speeds up disassembly, supporting efficient workflows in manufacturing, automotive, and aerospace sectors.

Specification Summary & Compliance

This thumb nut adheres to UNF thread standards with a size of 1/4"-28 and Class 2B thread fit for precise dimensional accuracy. It features a flanged, round head with a collar diameter of 15/32" and height of 3/8", fully threaded with right-hand direction. The product is manufactured in compliance with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) regulations, ensuring it meets environmental and safety requirements for industrial use.