S-94320A742 1/4"-20 x 1" Thumb Screws

Key Features & Benefits at a Glance

• Superior hand-tightening capability with knurled head texture for secure grip without tools
• Excellent corrosion resistance due to nylon plastic construction in humid or chemical environments
• Reliable fastening performance with 11,000 psi tensile strength for secure assemblies
• Wide temperature tolerance from -40°F to 185°F for stable operation in varying conditions
• Quick installation through Class 2A UNC coarse threads ensuring smooth engagement
• Maximum thread engagement with fully threaded design for enhanced holding power
• Environmentally compliant with RoHS 3 certification for safe use in regulated industries

Professional Applications & Engineering Value

This nylon thumb screw solves critical assembly challenges where frequent adjustments and corrosion resistance are paramount. The high-profile round head with knurled grip enables rapid hand-tightening in equipment maintenance, electronics enclosures, and laboratory instruments. Its 1/4"-20 UNC coarse threads provide quick engagement in plastic or soft metal components, while the nylon material prevents galvanic corrosion and electrical conductivity issues. With a temperature range of -40°F to 185°F, it maintains integrity in outdoor equipment, automotive components, and HVAC systems where thermal cycling occurs. The fully threaded design ensures consistent clamping force across the entire length, making it ideal for panel fastening, access covers, and adjustable mechanisms requiring reliable yet removable fastening solutions.

Specification Summary & Compliance

This thumb screw features 1/4"-20 UNC coarse threads with Class 2A thread fit for standard industrial applications. Manufacturing follows inch system specifications with right-hand threading and fully threaded construction. The product is RoHS 3 (2015/863/EU) Compliant, meeting environmental regulations for hazardous substance restrictions.