S-93015A233 1/2"-13 x 3 1/2" Thumb Screws

Key Features & Benefits at a Glance

• Enhanced manual operation with a 1 1/4" knurled head for superior grip and torque without tools, reducing assembly time.
• Exceptional corrosion resistance from 18-8 Stainless Steel, ideal for harsh environments and frequent use in industrial settings.
• High mechanical strength with 80,000 psi tensile strength and Rockwell B83 hardness, ensuring durability under heavy loads.
• Reliable coarse threading (1/2"-13 UNC) with Class 2A fit for quick engagement and secure fastening in various materials.
• Low-profile round head design and extended tip for easy alignment and reduced risk of snagging in compact spaces.
• Compliance with environmental standards including RoHS 3 and REACH, supporting sustainable and safe manufacturing practices.
• Versatile partial threading and 3 1/2" length for adjustable clamping and precise tension control in assemblies.

Professional Applications & Engineering Value

This 18-8 Stainless Steel Thumb Screw is engineered to address common industrial challenges such as tool-free maintenance and corrosion-induced failures. The knurled head texture provides a non-slip surface, enabling quick adjustments in machinery, enclosures, and electronic panels without specialized tools. Its coarse UNC threading and Class 2A thread fit ensure rapid installation and reliable holding power, reducing downtime in production lines. The low-profile round head and extended tip facilitate easy alignment in tight spaces, while the material's inherent resistance to rust and chemicals makes it suitable for outdoor, marine, and chemical processing applications. By integrating high tensile strength and compliance with RoHS and REACH, this screw delivers long-term reliability and safety in demanding environments.

Specification Summary & Compliance

This thumb screw adheres to precise dimensional standards, including a 1/2"-13 UNC coarse thread with Class 2A thread fit for consistent accuracy and interchangeability. It meets manufacturing specifications for material hardness (Rockwell B83) and tensile strength (80,000 psi), ensuring performance in industrial applications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of hazardous substances and supporting environmental safety in global supply chains.