S-91746A228 8-32 x 1" 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
- Enhanced grip and torque application with knurled head texture and narrow profile design for secure manual tightening without tools
- Superior corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh industrial environments
- High mechanical strength with 80,000 psi tensile strength and Rockwell B85 hardness for reliable, long-lasting fastening
- Precise thread engagement with Class 2A UNC coarse threads ensuring consistent fit and reduced cross-threading risks
- Full-length threading provides maximum adjustability and holding power across the entire 1" length
- Regulatory compliance meets RoHS 3 and REACH standards for safe use in regulated industries
- Right-hand thread direction offers standard, intuitive installation for efficient assembly operations
Professional Applications & Engineering Value
This 8-32 UNC thumb screw delivers exceptional engineering value in applications requiring frequent adjustments and reliable clamping force. The 18-8 stainless steel material provides excellent corrosion resistance, eliminating rust concerns in humid or chemical-exposed environments like electronic enclosures, machinery guards, and laboratory equipment. The knurled head with 3/16" diameter and narrow profile ensures positive grip even with gloved hands, reducing slippage during high-torque applications. With fully threaded construction and Class 2A thread fit, these thumb screws maintain consistent clamping pressure while resisting vibration loosening. The coarse UNC threads enable quick installation and removal, making them ideal for maintenance panels, access doors, and adjustable components across manufacturing, aerospace, and telecommunications sectors.
Specification Summary & Compliance
This thumb screw features precision 8-32 UNC coarse threads with Class 2A fit for consistent dimensional accuracy and reliable engagement. Manufacturing complies with standard inch system specifications including 1" length, 3/16" head diameter, and right-hand thread direction. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial applications worldwide.
