S-95150A154 1/4"-20 Thumb Nuts

Key Features & Benefits at a Glance

• Enhanced Grip & Fast Assembly: Knurled round head design ensures secure hand-tightening without tools, speeding up installation and adjustments in tight spaces.
• Superior Corrosion Resistance: Made from 18-8 stainless steel with a black-oxide finish, offering reliable performance in humid, chemical, or outdoor environments.
• Increased Load Distribution: Integrated flange eliminates the need for a separate washer, reducing point stress and preventing surface damage.
• Precise Thread Compatibility: UNC coarse 1/4"-20 threads with Class 2B fit provide consistent engagement and vibration resistance in industrial assemblies.
• Durable & Long-Lasting: Robust construction from stainless steel ensures high strength and repeated use without wear or thread stripping.
• Regulatory Compliance: Meets REACH and RoHS 3 standards, ensuring safety and environmental responsibility in global supply chains.
• Optimized Dimensions: With a 15/32" collar diameter and 3/8" height, it offers a compact yet sturdy profile for space-constrained applications.

Professional Applications & Engineering Value

This flanged thumb nut is engineered to address common challenges in industrial maintenance, machinery, and electronic enclosures where tool-free fastening is critical. The black-oxide 18-8 stainless steel construction resists rust and corrosion, making it ideal for harsh conditions like marine, automotive, or food processing equipment. The knurled head provides a non-slip surface, allowing operators to tighten or loosen quickly even with gloves on, reducing downtime. Its UNC coarse threading and Class 2B fit ensure reliable performance in high-vibration settings, preventing loosening while maintaining alignment. By integrating the flange, it simplifies assembly, cuts component count, and enhances structural integrity—perfect for hand-tightened applications requiring frequent access or adjustments.

Specification Summary & Compliance

This thumb nut features precise 1/4"-20 UNC coarse threads with a Class 2B thread fit for consistent tolerance and easy engagement. Dimensions include a collar diameter of 15/32", height of 3/8", and a fully threaded right-hand design. It complies with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) regulations, ensuring adherence to environmental and safety standards in industrial components.