Thread Gauge - Metric Sizes
Nuts, Bolts & Screws Measuring & Identification Tool
Thread Gauge - Identify size and pitch of machine screws, nuts and bolts with this solid steel thread checker. This simple tool offers knobs and slots of standard fastener sizes for Metric sizes M4x0.7 through M12x1.75. Screw a fastener into the slot to determine the thread pitch and size. Nuts and Washers can be measured by using the knob on the opposite end of each piece. Convenient design for easy storage and transportation.
Includes Fine and Coarse threads