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The tap size chart provides a list of standard size taps, specifying the diameter and thread spacing, for fractional, metric, and screw sizes. The decimal equivalents of the diameters are shown in both English and Metric units. Fractional sizes are listed in inches, while metric sizes are listed in millimeters following the letter "M".

One tap threads holes in pipe and conduit from start to finish. A range of sizes for adding internal threads to pipe and conduit. Create the broad Acme threads found on lead screw nuts, linear actuators, and other moving components. Thread holes for left-hand Acme fasteners that secure counter-clockwise rotating parts.

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IRWIN Hanson Metric Thread Taps (HCS) is ideal for auto repair and machinery where metric threads are specifiedFind the TAP CARDED 6MM-1MM at Ace.

Basic metric hand tap types: Taper tap: 5-6 lead threads ground. The easiest tap for starting to thread a hole. Plug tap: 3-4 lead threads ground. The most common tap: a "middle ground" tap for threading. Bottoming tap: 1-2 lead threads ground. Used for continuing to thread a blind hole close to the bottom of the hole.

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Choose from our selection of metric taps, including general purpose taps, tap sets, and more. Same and Next Day Delivery.