S-91035A430 8-32 x 1" ASTM A581, ASTM A582 Captive Panel Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh industrial environments.
• Effortless manual operation with a knurled round head for enhanced grip, even with gloves or oily hands.
• Reliable and secure fastening provided by the 8-32 UNC coarse thread, ensuring quick assembly and vibration resistance.
• Versatile panel mounting as a captive panel screw, designed to stay attached to the panel and prevent loss.
• Precise thread engagement with Class 2A fit and partial threading for controlled installation depth.
• Dual drive compatibility featuring a slotted drive for use with standard tools when needed.
• Compliance with stringent regulations including RoHS 3 and REACH, ensuring safety and environmental responsibility.

Professional Applications & Engineering Value

This 18-8 stainless steel thumb screw is engineered to solve common challenges in industrial panel fastening. The knurled head provides exceptional manual torque without slipping, speeding up maintenance and assembly in tight spaces. Its UNC coarse threading and Class 2A thread fit offer reliable engagement in metal and plastic panels, reducing cross-threading risks. As a captive panel screw, it remains secured to the equipment, minimizing downtime from lost hardware. The partial threading allows for precise clamping force, making it ideal for electronic enclosures, machinery guards, and communication devices where repeated access is required.

Specification Summary & Compliance

This thumb screw features a 8-32 UNC coarse thread with a Class 2A thread fit for standard dimensional accuracy. It is manufactured in compliance with ASTM A581 specifications for quality and performance. The product is confirmed to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to environmental and safety regulations for industrial components.