S-99607A135 8-32 x 1/2" Thumb Screws
Thumb Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Easy hand-tightening operation with a knurled round head and flared collar design for superior grip without tools
- Exceptional corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh industrial environments
- High tensile strength of 80,000 psi ensures reliable, durable fastening under demanding conditions
- Precise UNC coarse threading with Class 2A fit provides smooth engagement and consistent performance
- Fully threaded 1/2" length offers maximum adjustability and secure holding power
- Rockwell B85 hardness delivers excellent wear resistance and long-term durability
- Compliance with RoHS 3 and REACH standards guarantees environmental safety and regulatory acceptance
Professional Applications & Engineering Value
This 8-32 UNC thumb screw is engineered to solve common industrial fastening challenges where tool-free assembly and disassembly are critical. The 18-8 stainless steel material provides outstanding corrosion resistance, making it suitable for applications in electronics, machinery, and outdoor equipment exposed to moisture or chemicals. The knurled head and flared collar design enhance grip and prevent slippage, reducing installation time and improving operator safety. With its coarse thread and Class 2A fit, it ensures quick, reliable threading into components, minimizing cross-threading risks. Ideal for access panels, adjustable fixtures, and frequent maintenance points, this screw delivers consistent performance in industrial thumb screw applications requiring high strength and ease of use.
Specification Summary & Compliance
This thumb screw features a UNC coarse thread with 8-32 thread size and Class 2A thread fit, ensuring dimensional accuracy and smooth assembly. It is fully threaded with a length of 1/2" and thread diameter of 0.164". Manufactured from 18-8 stainless steel with a hardness of Rockwell B85 and tensile strength of 80,000 psi, it adheres to industry standards for durability. The product is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its environmental and safety suitability for global markets.
