BoltSize-It - Bolt and Nut Checker
- Sizes bolts, nuts, and screws
- Sorts coarse threads, fine threads, and metric threads
- Measures inches and millimeters
- Length: 8-5/8", Width: 4-1/4"
Size bolt diameter by pushing bolt through sizing holes
Gauges hex nuts and washers (USS, SAE)
Gauges metric hex nuts and washers by holding under metric holes
Measure US and metric thread pitch
Special notch gauges flat headed metal and wood screws
Ruler marked with inches and millimeters
Sturdy and lightweight plastic resists water, alcohol, oil, and grease
Fits in shirt pocket (8-5/8" x 3-1/4" or 217 mm x 82 mm)