S-95150A170 1/4"-20 Thumb Nuts

Key Features & Benefits at a Glance

• Enhanced grip and torque application with knurled round head design for secure hand-tightening without tools
• Superior load distribution and vibration resistance thanks to the integrated flange collar that acts as a built-in washer
• Excellent corrosion resistance in harsh environments provided by durable 18-8 stainless steel construction
• Quick and reliable coarse thread engagement with 1/4"-20 UNC threading for faster assembly and disassembly
• Consistent thread fit and interchangeability ensured by precision-machined Class 2B thread fit standards
• Secure fastening in right-hand thread applications with fully threaded design for maximum contact and holding strength
• Compliance with international environmental regulations including REACH and RoHS 3 for global supply chain compatibility

Professional Applications & Engineering Value

This 18-8 stainless steel flanged thumb nut delivers exceptional value in applications requiring frequent adjustments or tool-less maintenance. The knurled round head provides superior tactile grip even with oily hands or gloves, while the flanged collar increases bearing surface to prevent loosening under vibration - a common failure point in machinery and equipment. The UNC coarse threading ensures rapid installation in manufacturing lines, assembly stations, and field service applications. Its corrosion-resistant properties make it ideal for outdoor equipment, marine environments, food processing machinery, and chemical handling systems where durability and reliability are paramount for operational efficiency and reduced maintenance downtime.

Specification Summary & Compliance

This thumb nut features precision 1/4"-20 UNC coarse threads with Class 2B thread fit for consistent performance and interchangeability. The product maintains dimensional accuracy with collar diameter of 15/32", head diameter of 9/16", and overall height of 3/8". Manufactured from 18-8 stainless steel with fully threaded right-hand design, it complies with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental standards, ensuring regulatory compliance for industrial and commercial applications worldwide.