Metric Screw Thread Chart Metric Tap Size Tap Drill (Inches) Clearance Drill (Inches) . Outside Diameter of Screws mm inch mm inch 1.6 0.063 8.0 0.315 1.8 0.071 10 0.394 . The clearance drill sizes listed are heremonly used sizes. Length is measured from where the surface is assumed to be, to the end of the screw. Therefore, pan head screws are measured from under the head, and ﬂat head screws are measured overall. 10mm x 1.5mm 8mm x 1.25mm 3mm x 0.5mm 6mm x 1.0mm 4mm x 0.7mm 5mm x 0.8mm. Important Data, Metric , Machine Screws . Position of Head: The axis of the head shall be located at a true position relative to the axis of the screw shank within a tolerance zone having a diameter equivalent to 6% of the specified maximum head diameter, or the specified maximum width across flats of hex and hex flange heads,.
Metric screws are the type almost exclusively used in items manufactured in Europe. Class 4.8 machine screws shall be made from a carbon steel, partially or fully annealed as required, which conforms to the hereposition--Carbon: 0.55% maximum;Phosphorus: 0.05% maximum;Sulfur: 0.06% maximum . External Metric Thread Table Chart and Fastener Sizes M1.6 - M18. Do not use these values for standard metric internal thread design. All units in mm. These are the M Profile limiting Dimensionings. Where: H = P ( 3 1/2 / 2 ) = 0.866025 P or 0.125H = 0.108253P Engineering Slide Chart ANSI Screw … Metric Machine Screws Tap Drills Chart This table is the chart for publication of information of metric machine screws , along with tap and clearance drill information. If all else fails, you may want to use our Drill Size Conversion Table or our Tap Drill Size Calculator .
Metric Machine Screws . Metric machine screws are m available in quality grade A2 Stainless Steel. Available in Metric Phillips Flat Head Machine Screws , Metric Phillips Pan Head Machine Screws , Torx Pan Head Machine Screws . Metric A2 Stainless Steel is corrosion resistant and rust resistant. The size of a metric screw or bolt is specified as diameter, pitch and length, in millimeters (millimeters is abbreviated mm). For nuts, size will appear as diameter and pitch. There is an exception though—if pitch isn't specified, the fastener is coarse threaded. Consider this size…. M8-1.0 x 20. Metric Tap Clearance Drill Sizes Tap Drill Clearance Drill 75% Thread for Aluminum, Brass, Plastics 50% Thread for Steel, Stainless, Iron Close Fit Standard Fit Screw Size (mm) Thread Pitch (mm) Drill Size (mm) Closest American Drill Drill Size (mm) Closest American Drill Drill Size (mm) Closest American Drill Drill Size (mm) Closest American
Cheese Head Machine Screw . The head height on these is slightly shorter than the Pan Head. Zinc Stainless Steel. Click for specifications. Metric Conversion . How to Measure a Screw . What Size Screws Do I Need : Flat Head Machine Screw