S-91035A501 10-24 x 1 1/2" ASTM A581, ASTM A582 Captive Panel Screws

Key Features & Benefits at a Glance

• Enhanced Grip & Easy Manual Operation: Knurled round head design ensures secure, slip-resistant handling without tools, speeding up assembly and disassembly in tight spaces.
• Superior Corrosion Resistance: Made from 18-8 Stainless Steel, offering excellent durability against rust and oxidation in harsh industrial environments.
• Secure Captive Panel Retention: Partially threaded shank with 10-24 UNC coarse threads prevents accidental loosening and ensures reliable panel mounting.
• Precision Thread Fit: Class 2A thread fit guarantees consistent engagement and smooth installation, reducing cross-threading risks.
• Dual Drive Versatility: Combines thumb-operated convenience with a slotted drive for optional tool use, offering flexibility in various maintenance scenarios.
• Environmental & Regulatory Compliance: Meets ASTM A581 specifications, RoHS 3, and REACH standards, ensuring safe, sustainable use in regulated industries.
• Optimized Length for Panel Applications: 1 1/2" length with 1/4" thread length provides ideal reach and holding power for captive panel designs.

Professional Applications & Engineering Value

This 10-24 UNC thumb screw in 18-8 Stainless Steel is engineered to address common challenges in industrial panel mounting, such as frequent access needs and vibration-induced loosening. The knurled head offers a firm grip for quick manual adjustments, reducing dependency on tools in confined spaces like electrical enclosures, machinery guards, and communication devices. Its coarse UNC threads and partial threading ensure secure captive retention, preventing panels from detaching completely during service. The right-hand thread direction and slotted drive complement standard installation practices, while the corrosion-resistant material maintains integrity in humid or chemical-exposed environments. Ideal for OEMs and maintenance teams, this screw enhances operational efficiency by minimizing downtime and ensuring reliable, repeatable fastening in captive panel screw applications.

Specification Summary & Compliance

This thumb screw adheres to precise dimensional standards, including Class 2A thread fit for consistent tolerance and UNC coarse threads (size 10-24) per industry norms. It meets ASTM A581 manufacturing specifications for material quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial use.