S-91035A510 10-32 x 1/2" 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
- Enhanced manual grip with knurled round head design for secure tightening without tools in confined spaces
- Superior corrosion resistance from 18-8 stainless steel construction, ideal for harsh industrial environments
- Precision thread engagement with Class 2A fit and fine 10-32 UNF threading for reliable vibration resistance
- Optimized panel retention through partial threading that prevents over-insertion in captive applications
- Dual drive compatibility featuring both thumb-operated head and slotted drive for flexible installation
- Regulatory compliance assurance meeting ASTM A581 material standards and global RoHS 3/REACH requirements
- Right-hand thread configuration ensuring standard installation familiarity across maintenance teams
Professional Applications & Engineering Value
Engineered for captive panel applications where repeated access is required, this 18-8 stainless steel thumb screw solves critical assembly challenges. The knurled head texture provides positive grip even with gloved hands, while the partial threading prevents cross-threading during blind installations. The UNF fine thread spacing maintains superior clamping force in vibration-prone equipment, and the corrosion-resistant stainless steel ensures long-term reliability in electronic enclosures, industrial control panels, and telecommunications hardware. These captive panel screws deliver consistent performance where tool-less fastening and frequent maintenance cycles demand durable, precision-threaded solutions.
Specification Summary & Compliance
This 10-32 UNF thumb screw maintains Class 2A thread fit tolerances with 0.19" thread diameter and 1/4" thread length on a 1/2" overall partially threaded body. Manufactured to ASTM A581/A582 material specifications with slotted drive and right-hand thread direction. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for global industrial deployment.
