S-90181A148 6-32 x 1/2" Thumb Screws

Key Features & Benefits at a Glance

• Quick manual installation and removal with the spade-shaped thumb head design, eliminating the need for tools in frequent assembly/disassembly applications
• High-strength steel construction provides reliable 40,000 psi tensile strength for secure fastening in demanding industrial environments
• Superior wear resistance with Rockwell B55 hardness ensures extended service life and reduced replacement frequency
• Precise thread engagement through Class 2A fit UNC coarse threading delivers consistent performance and vibration resistance
• Maximum grip length coverage with fully threaded design enhances holding power across the entire 1/2" length
• Optimized for inch-system applications with standard 6-32 UNC thread size for broad compatibility with existing equipment
• Right-hand threading convention follows industry standards for intuitive installation and operator familiarity

Professional Applications & Engineering Value

This 6-32 UNC spade thumb screw delivers exceptional value in applications requiring frequent manual adjustments without compromising structural integrity. The steel construction combined with Rockwell B55 hardness withstands repeated use in industrial settings where tool-less access is essential. The fully threaded design and coarse UNC threading provide superior grip in softer materials and prevent cross-threading during quick installations. Engineered for panel fastening, access covers, and electronic enclosures, this thumb screw solves the common challenge of maintaining secure connections while enabling rapid maintenance cycles. The Class 2A thread fit ensures consistent performance across production runs, making it ideal for OEM applications requiring reliable, repeatable fastening solutions.

Specification Summary & Compliance

This thumb screw features precise Class 2A thread fit according to UNC standards with 6-32 thread size and coarse thread spacing. Manufacturing adheres to standard industrial specifications for dimensional accuracy, including 1/2" length, 0.138" thread diameter, and right-hand thread direction. The product meets industry standards for inch-system fasteners and is manufactured in compliance with RoHS and REACH environmental regulations.