Metric Machine Screws Sizes

Asm makes it easy to order metric hardware including metric screws spacers and standoffs.

Metric machine screws sizes.

Westfield fasteners carries stock of each size and type in our warehouse ready for immediate despatch. The pitch of a screw is typically less than 1 mm you would measure it as a decimal point of a mm. For example for a threaded spacer the metric requirement might be m 3 5 x 0 6 thread. They were one of the first international standards agreed when the international organization for standardization iso was set up in 1947.

Most screws in the metric system have 1 pitch that corresponds to each diameter. Metric screw thread chart metric tap size tap drill inches clearance drill inches m1 6 x 0 35 55 0 052 50 0 070 m1 8 x 0 35 53 0 057 48 0 0 76 m2 x 0 4 52 0 063 45 0 082 m3 x 0 5 39 0 0995 1 8 0 125 m3 5 x 0 6 32 0 116 28 0 140 m4 x 0 7 29. Us bolts head and wrench sizes hex bolt lag bolt square bolt and heavy hex bolt. Standard metric machine screw sizes mm 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150.

Us and metric fasteners thread sizes printable fastener chart. Us machine screws. The iso metric screw threads are the most commonly used type of general purpose screw thread worldwide. Bolts and machine screws metric presented on this page is our current range of metric threaded bolts and machine screws to be used in conjunction with the equivalent metric sized nuts and washers.

For instance 2 mm screws have a pitch of 0 4 mm. Sizing the right screw can be complicated unless you are familiar with the various screw sizings that are quoted on the packaging often both in imperial and metric. Make sure that you get the right sized screw. For nuts size will appear as diameter and pitch.

Once you have selected one of our american standard parts you just need to add your metric requirement in the rfq. Citation needed the m designation for metric screws indicates the nominal outer diameter of the screw thread in millimetres e g an m6 screw has a. The size of a metric screw or bolt is specified as diameter pitch and length in millimeters millimeters is abbreviated mm. Us hex bolts inches ansi asme b18 2 1 dimensions of hex bolts imperial units.

There is an exception though if pitch isn t specified the fastener is coarse threaded. How to order metric parts. Us hex bolts metric ansi asme b18 2 3m dimensions of hex bolts metric units.