Bolt Nut Screw Fastener & Thread Gauge Sizer Ruler Fractional and Metric
Can measure Bolts, Nuts, Screws, Washers and has a nut gauge on the side. If the nut slides all the way down it is Fine Thread if it stops it's coarse thread. Also has a thread gauge on the back side.
This is a must have for any toolbox, tool room or garage.
1/4" thick plastic
8-1/2" overall length X 3-1/4 wide
Screw checker coarse and metric
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