When you need to measure the diameter of nuts and bolts, use this plastic Screw, Bolt, & Nut Gauge. It quickly measures drywall screws, eye screws, lag bolts & screws, hex-head screws & bolts, sheet metal screws, wood screws, machine screws and many other styles. Perfect for measuring overall and useable length for fasteners and more.
- SAE and Metric measurements
- Ideal for any measuring tasks
- Easy-to-read fractional markings
- Measures nuts by inside and outside diameter
- Stores easily in toolboxes.