S-91035A595 10-32 x 1 1/2" ASTM A581, ASTM A582 Captive Panel Screws

Key Features & Benefits at a Glance

• Enhanced grip and tool-free operation with a knurled round thumb head for quick installation and removal in tight spaces
• Superior corrosion resistance thanks to 18-8 Stainless Steel construction, ideal for harsh industrial environments
• Reliable fine thread engagement with 10-32 UNF threading and Class 2A fit for secure, vibration-resistant panel fastening
• Optimized for panel applications featuring a 1 1/2" length with partial threading to prevent over-insertion and ensure proper captive function
• Right-hand thread direction for standard, intuitive tightening compatible with common assembly practices
• Compliance with stringent industry standards including ASTM A581 for material consistency and performance reliability
• Environmentally responsible manufacturing adhering to RoHS 3 and REACH regulations, ensuring safety and sustainability

Professional Applications & Engineering Value

This 18-8 Stainless Steel Thumb Screw is engineered to address common challenges in panel mounting and captive screw applications, where frequent access and corrosion resistance are critical. The knurled round head provides exceptional manual grip, eliminating the need for tools and reducing assembly time in electronics, machinery, and enclosure systems. Its 10-32 UNF fine threading and Class 2A thread fit deliver precise, secure fastening that resists loosening under vibration, while the partially threaded design prevents cross-threading and ensures consistent panel alignment. Made from durable stainless steel, it withstands moisture, chemicals, and temperature variations, making it a reliable choice for industrial, automotive, and telecommunications equipment requiring easy-to-install, long-lasting fasteners.

Specification Summary & Compliance

This thumb screw adheres to precise dimensional standards, including a Class 2A thread fit for consistent engagement and 10-32 UNF fine threads with right-hand direction. It meets ASTM A581 specifications for material quality and performance, ensuring high strength and durability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, guaranteeing it is free from hazardous substances and safe for various industrial applications.