S-91746A603 5/16"-18 x 1/2" Thumb Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Enhanced manual grip and torque application thanks to the fully knurled round head design
• High-strength performance with 80,000 psi tensile strength and Rockwell B83 hardness for reliable, heavy-duty use
• Quick and easy installation with coarse 5/16"-18 UNC threading and Class 2A fit for rapid assembly
• Maximum thread engagement due to fully threaded design, providing superior holding power
• Space-efficient narrow profile allows for use in confined areas where standard tools can't reach
• Compliance with environmental regulations including RoHS 3 and REACH for safe industrial applications

Professional Applications & Engineering Value

This heavy-duty thumb screw solves critical assembly challenges in industrial settings where tool-free operation and frequent adjustments are required. The 18-8 stainless steel construction provides excellent corrosion resistance, making it suitable for manufacturing equipment, electronic enclosures, and outdoor applications. The coarse UNC threading (5/16"-18) combined with Class 2A fit ensures quick installation and removal while maintaining secure fastening. The fully knurled round head offers superior grip even with greasy hands or when wearing gloves, reducing installation time and improving workplace efficiency. The narrow profile design makes it perfect for applications with limited clearance, while the right-hand threading follows standard industry conventions for intuitive operation.

Specification Summary & Compliance

This thumb screw features precision 5/16"-18 UNC coarse threading with Class 2A thread fit for consistent performance and interchangeability. Manufactured from 18-8 stainless steel with Rockwell B83 hardness and 80,000 psi tensile strength. The product is fully threaded with right-hand direction and measures 1/2" in length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence for industrial applications.