What is the Drill Bit Size That Corresponds to a 6mm Tap? To drill a hole for a 6mm tap with a 1.00 tap, you'll need a bit with a diameter of 5.2mm. A tap size of 6mm corresponds to a drill bit size of 5.2mm that is measured out to . 2047 in decimal inches.
Nut Rivet M6 Aluminium Right Hand Thread Large Flange - Drill Size: 9mm Wall Thickness: 0.7-4mm.
The M6 insert requires an 8.5mm or 9mm pilot hole; the optimum diameter is dependent on the hardness of the material you are using. We found 9mm worked best in MDF.
A 1/4" hole really should work fine for a 6mm anchor. That extra 0.35mm should make no noticeable difference.
M6 threads are 6mm metric screws. The standard metric rack screw is called M6 x 1. The 'M' means it's metric. The '6' is the outside diameter measured in millimeters, and the '1' is the distance between adjacent threads, also in millimeters.
The first number in a metric bolt specification refers to the bolt's nominal outer diameter. For example, a bolt specified as "M6-1.0 x 30" fits a 6.0-mm diameter hole.
M6 Threads
The outside diameter of the threads is 6 mm. The standard metric rack screw is actually an M6 x 1 mm. The number 1 mm refers to 1 threads per millimeter. You can identify an M6 screw by measuring the diameter at slightly more than 7/32″ (0.2362″).
6 mm is approximately 0.236 inches. To the nearest 1/64 of an inch, that is 15/64″.
Check the Shank
Typical drill bits have markings somewhere on the shank above the threads. It's small, but it usually has the drill-bit diameter stamped into the metal; the number is written in fractions.
As a rule of thumb, for Metric threads, the tapping drill can be calculated by subtracting the pitch from the diameter of the thread. eg for an M5x0. 75 thread the tapping drill is 5-0.75mm = 4.25mm. For Imperial (inch) threads the tapping drill size is calculated in the same way, diameter minus pitch.
6mm = almost 1/4 inch.
Red wall plugs require a 6mm drill bit for installation and are suitable for use with screws with a diameter of 6-10mm. They can support weights of up to 15kg, making them suitable for medium-weight items such as small cabinets or bookshelves.
Conventional 6mm drill bits come in a length of 93mm.
3/32” (2MM) FOR UP TO 3/32” (2MM) THICKNESS. 1/8” (3MM) FOR UP TO 1/8” (3MM) THICKNESS. 1/4” (6MM) FOR UP TO 1/4” (6MM) THICKNESS. 1/2” (12MM) FOR UP TO 1/2” (12MM) THICKNESS.
A normal M6 screw is a rattly fit in a 1/4 BSF full nut.