Bolt Nut & Screw - Thread & Size Checker Gauge (Inch & Metric)

Use this tool to identify the measurements of fasteners. It can easily measure INCH and METRIC along with COARSE and FINE thread pitches. This will cover you for diameter, thread pitch and length of most common nuts, bolts and screws.

• Inch and Metric & Coarse and Fine Threading
• Raised Grooves on Back for Measuring Thread Pitch
• Measures fractional bolts from size #4 to 1" up to 7" long
• Measures metric bolts & screws from size 3mm to 22mm
• Made of durable 1/4" thick hard plastic
• 1/4" thick x 8-3/4" Long x 3-3/8 Wide Color: Red