S-91746A463 1/2"-13 x 3" Thumb Screws
Thumb Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior manual grip with 1" knurled head texture for secure handling without tools
- Exceptional corrosion resistance from 18-8 stainless steel construction for long-term reliability
- High mechanical strength with 80,000 psi tensile strength and Rockwell B83 hardness
- Precision threading with Class 2A UNC coarse threads ensuring reliable engagement
- Optimized installation profile with low-profile round head design for space-constrained applications
- Partial threading design providing secure fastening while reducing material usage
- Regulatory compliance meeting RoHS 3 and REACH standards for environmental safety
Professional Applications & Engineering Value
This 1/2"-13 UNC thumb screw delivers exceptional performance in demanding industrial environments where manual adjustment and frequent access are required. The 18-8 stainless steel construction provides excellent corrosion resistance, making it ideal for applications exposed to moisture, chemicals, or outdoor conditions. The knurled head texture ensures positive grip even with oily hands or when wearing gloves, reducing installation time and eliminating the need for specialized tools. The coarse UNC threading and Class 2A thread fit provide reliable engagement in various materials while the low-profile round head design minimizes protrusion in confined spaces. These industrial thumb screws are particularly valuable in equipment panels, access covers, jigs, fixtures, and machinery requiring regular maintenance or adjustment.
Specification Summary & Compliance
This fastener features 1/2"-13 UNC coarse threads with Class 2A thread fit precision, ensuring consistent engagement and reliable performance. The partially threaded design extends 2 15/16" with a total length of 3". Manufactured from 18-8 stainless steel with Rockwell B83 hardness and 80,000 psi tensile strength. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest industry standards for hazardous substance restrictions.
