S-91746A413 1/4"-20 x 1" Thumb Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ideal for humid or chemically exposed environments.
• Exceptional hand-tightening grip provided by the fully knurled round head, ensuring secure operation without tools.
• High mechanical strength with 80,000 psi tensile strength and Rockwell B85 hardness for reliable performance under load.
• Quick and easy installation thanks to the coarse UNC thread and Class 2A fit, enabling rapid assembly.
• Full regulatory compliance with RoHS 3 and REACH, making them safe for regulated industries.
• Versatile 1" length and full threading for broad application fit and maximum engagement.
• Durable, right-hand thread design ensures long-term, dependable fastening in frequent-use scenarios.

Professional Applications & Engineering Value

This 1/4-20 UNC knurled thumb screw in 18-8 stainless steel is engineered to solve common industrial challenges where tool-less, rapid adjustments are critical. The coarse thread and Class 2A fit provide quick engagement and reduce cross-threading risks in assembly lines, while the knurled round head offers a non-slip surface for operators, even with greasy hands. Its 80,000 psi tensile strength and corrosion-resistant material make it suitable for machinery panels, electronic enclosures, and fixtures in demanding environments, ensuring longevity and reducing maintenance frequency.

Specification Summary & Compliance

This thumb screw adheres to UNC coarse thread standards with a Class 2A thread fit for consistent dimensional accuracy. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances. The inch-measurement specifications, including 1/4"-20 thread size and 1" length, align with common industrial requirements for reliable and safe fastening solutions.