S-91746A957 6-48 x 1" Thumb Screws

Key Features & Benefits at a Glance

• Enhanced Grip & Fast Assembly: Knurled 1/4" head provides superior manual handling, reducing tool dependency and speeding up installation in tight spaces.
• Exceptional Corrosion Resistance: Made from 18-8 Stainless Steel, offering reliable performance in humid or corrosive industrial environments.
• High Tensile Strength for Secure Fastening: 80,000 psi tensile strength ensures robust holding power and resistance to loosening under vibration.
• Precision Thread Fit for Reliable Engagement: Class 2A thread fit with extra fine 6-48 thread delivers accurate, secure mating with minimal risk of cross-threading.
• Durable & Long-Lasting Construction: Rockwell B83 hardness provides excellent wear resistance, maintaining thread integrity over repeated use.
• Full Threading for Maximum Versatility: Fully threaded 1" length allows for adjustable grip depth across various material thicknesses.
• Compliant with Global Environmental Standards: Meets RoHS 3 and REACH regulations, ensuring safe use in regulated industries and international markets.

Professional Applications & Engineering Value

This 18-8 Stainless Steel Thumb Screw is engineered to address common challenges in precision assembly, such as the need for quick manual adjustments without compromising strength. The extra fine 6-48 thread and Class 2A fit provide superior thread engagement in fine-pitch applications, reducing the risk of stripping in soft materials or delicate components. The knurled head offers a non-slip surface, ideal for environments where gloves are worn or space limits tool access. Commonly used in electronics enclosures, optical devices, and laboratory equipment, this screw ensures reliable, tool-free maintenance while withstanding exposure to moisture and chemicals thanks to its corrosion-resistant stainless steel composition. Its fully threaded design and high tensile strength make it a dependable choice for securing critical parts in aerospace, medical, and industrial automation sectors.

Specification Summary & Compliance

This thumb screw adheres to UNS thread standards with a Class 2A thread fit for precise dimensional accuracy and consistent performance. Key specifications include a thread size of 6-48 extra fine, thread diameter of 0.138", and a length of 1". The product is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for use in environmentally conscious and regulated industries.