S-91830A208 8-32 x 1/2" Thumb Screws

Key Features & Benefits at a Glance

• Enhanced manual operation with knurled round head design for superior grip and torque application without tools
• Exceptional corrosion resistance from 18-8 stainless steel construction, ideal for harsh industrial environments
• Reliable fastening performance with 80,000 psi tensile strength and Rockwell B83 hardness for heavy-duty applications
• Quick installation and removal through 8-32 UNC coarse threading and Class 2A thread fit for smooth engagement
• Full-length threading across the 1/2" length provides consistent holding power across the entire fastener
• Compliant with environmental regulations including RoHS 3 and REACH for global market acceptance
• Optimized head design with raised profile and collar for improved leverage and surface contact

Professional Applications & Engineering Value

This 18-8 stainless steel thumb screw delivers exceptional value in applications requiring frequent adjustments or tool-free operation. The knurled round head with raised profile provides maximum finger grip even with oily hands or gloves, solving slippage issues common in industrial settings. The 8-32 UNC coarse threading ensures quick engagement and disengagement, making it ideal for access panels, electronic enclosures, and machinery guards that require regular maintenance. The fully threaded 1/2" length offers consistent clamping force across the entire fastener, while the stainless steel construction withstands corrosive environments in manufacturing, marine, and outdoor applications. With 80,000 psi tensile strength, this thumb screw maintains integrity under vibration and load stress, providing reliable performance where other fasteners might fail.

Specification Summary & Compliance

This thumb screw features precision 8-32 UNC coarse threading with Class 2A thread fit for consistent engagement and reliable performance. The fastener maintains dimensional accuracy with 0.164" thread diameter and 1/2" length fully threaded configuration. Manufacturing complies with industry standards for right-hand thread direction and includes integrated collar for enhanced stability. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting current environmental regulations for hazardous substance restrictions.