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Inch Thread Checker
Part Number SWTC-S21
Inch Thread Checker
Inch Thread Checker: Identify both Nut & Bolt Sizes!
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$32.95
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Description

Thread Checker Patent Logo

The Inch Thread Checker is an accurate and easy-to-use thread identifier for both nuts and bolts.  Each individual gauge features a male threaded stud on one end and a female threaded hole on the other.  The Thread Checker is especially well suited for distinguishing between similar inch and metric threads.  Conveniently assembled onto a wire loop, it's the perfect portable solution!  Hang it on your shop wall or store it in your tool box for safe keeping.
 
The Thread Checker, also known as a Thread Identifier or Thread Verifier is a great addition for any Home, Hobby, or Inventor's Work Shop; Auto, Motorcycle, Marine, ATV or RV Repair Shop; Heavy Equipment Repair Shop, Military Equipment Repair Station, Machine Shop, Fabricating Shop, Assembly Department, Production Department or Quality Inspection Station!

You can rest assured, these tools are made for the long haul.  Manufactured from grade 12L14 steel with the thread sizes permanently stamped onto each gauge, it will take some serious heavy duty use before we get the opportunity to fill your next order.  Proudly made in the USA.
 
 Features:
  • Each size has a nut and bolt checker on the same gauge
  • Thread sizes are permanently stamped (in red) onto each gauge
  • Individual gauges are clear zinc plated steel
  • The individual gauges rotate freely on the wire cable for fast thread verification
  • Wire cable with loop for convenient hanging
SWTC-S21 Size Specifications:
 
6-32, 6-40, 8-32, 10-24, 10-32, 1/4-20, 1/4-28, 5/16-18, 5/16-24, 3/8-16, 3/8-24, 7/16-14, 7/16-20, 1/2-13, 1/2-20, 9/16-12, 9/16-18, 5/8-11, 5/8-18, 3/4-10, 3/4-16, 1-8, 1-12
 

Made in USA Logo

  • SAME DAY SHIPPING IF ORDERED BY 1PM CST.
  • Customer Reviews Average Rating review View All Reviews
    Engineer
    I purchased the SWTC-S21 Inch Thread Checker, SWTC-M21 Metric Thread Checker and the 09A01.90 small nut and screw Thread Checker and I could not be more pleased with all 3 of these, they all are high quality and work great, I wish I had them years ago. Thread Tool Supply are excellent folks to deal with and provide fast shipping and service.
    Reviewed by: Richard Bailey from Southaven, MS. on 4/27/2013
    Owner
    This thread checker tool is a must have if you have to deal with different thread sizes regularly or have a bucket of bolts, especially if you deal with metric and standard. Of course you need both the metric and standard tool. These thread checkers have more sizes than most of the thread checkers do. Works perfectly!
    Reviewed by: Dave from Virginia. on 4/26/2013
    MR
    very good gauge i use it often for checking bolt sizes
    Reviewed by: Shane Benner from PA. on 10/31/2012
    QUALITY MANAGER
    THIS ITEM LOOKS AND FUNCTIONS GREAT
    Reviewed by: Yvonne Standridge from GREEN LAKE. on 8/3/2012
    Basic Tool I really needed
    How many times I have not found the one missing bolt or nut I need in my bunch of old peanut butter jars full of stuff. This checker helps me find the right one or even organize my jars (when I get motivated). I also know exactly what to get at the hardware or big box store. This checker rocks!.
    Reviewed by: Mark Bader from Crown Point, IN. on 7/26/2012
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