Bolt Head Size Metric

Metric hex bolt diameters and thread pitches mm 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220.

Bolt head size metric.

Engineering ansi hardware design data engineering metric hardware design data. Length is measured from under the head to the end of the bolt note. Unc and unf unified inch screw threads ansi asme b1 1 unified national thread unc coarse series and unf fine series. Metric bolt head wrench size.

Print this page. Head sizes may differ from what is shown due to differences between metric standards length. Stainless nuts and bolts. The bolt chart provides both us and metric stud sizes.

Our metric stud bolt to nut table is meant to help determine the correct size bolt or nut for your purpose. Square neck carriage bolts medium strength metric class 8 8. Large diameter nuts and bolts. The head makes 12 points of contact with a wrench to handle more torque than a socket head or hex head screw.

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 regardless of feature size. Threaded bolt stress area threaded bolts tensile stress area. The diameter between flat sections on a structural metric bolt s head is always 1 8 times the diameter of its shank. All dimensions are in millimeters.

Hex bolt head dimensions. Bolt diameter mm head wrench size mm ansi iso din. Definitions of terms are located below the chart. Metric stud bolt to nut size chart.

All tolerances are plus and minus. T slots and t nuts metric sizes standard metric t slots and t nuts. Metric socket head cap screws size table. An m10 bolt with a 10 mm shank features a hex head that s 16 mm across.

The following table of hex bolt head dimensions was adapted from asme b18 6 7m table 14 dimensions of hex head machine screws this table is used for smaller size hardware. Exotic materials specialty fasteners. Where l is the total bolt length and d nom is the nominal bolt diameter. The m3 and m4 nominal screw sizes have two drilled holes.

Us bolts head and wrench sizes hex bolt lag bolt square bolt and heavy hex bolt.