S-95536A239 M3.5 x 22 mm ASTM A581, ASTM A582 Captive Panel Screws
Captive Panel Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Effortless manual installation and removal with a knurled round head design for superior grip without tools
- Exceptional corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh industrial environments
- Reliable panel retention with partial threading and 22mm length ensuring secure captive fastening
- Quick assembly compatibility with M3.5x0.6 coarse metric threads for easy engagement in various applications
- Dual drive flexibility featuring both thumb-operated knurling and a slotted drive for versatile use
- Long-term durability and performance backed by ASTM A581 material specification compliance
- Environmentally responsible sourcing with full RoHS 3 and REACH compliance for global regulatory adherence
Professional Applications & Engineering Value
This M3.5 thumb screw is engineered to address common challenges in panel fastening and assembly operations. Crafted from 18-8 stainless steel, it offers excellent resistance to rust and corrosion, making it suitable for electronics enclosures, machinery panels, and outdoor equipment where environmental factors are a concern. The knurled round head and slotted drive enable quick manual adjustments, reducing assembly time and eliminating the need for specialized tools in tight spaces. With its partially threaded design and coarse metric thread (M3.5x0.6), this captive panel screw ensures secure, vibration-resistant holds, preventing loosening in dynamic industrial settings. Ideal for applications requiring frequent access, it enhances maintenance efficiency while upholding ASTM A581 standards for consistent quality and reliability.
Specification Summary & Compliance
This thumb screw features a metric thread size M3.5 with 0.6 mm pitch in a coarse, right-hand configuration, and a partially threaded shank with 5.5 mm thread length and 22 mm overall length. It adheres to ASTM A581 material specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe and sustainable use in industrial applications.
