Metric Hex Head Bolt Lengths

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Metric hex head bolt lengths.

Metric fasteners are commonly manufactured to meet standards set by din german. Drilled head metric hexagon socket head cap screws normally are not available in screw sizes smaller than m3 nor larger than m36. Hex bolts cap screws bolts metric grade a b h l g f k e t r u w for nominal lengths over 200mm. Ideal in salt water and chlorine environments.

All short lengths are fully threaded. For flat heads length includes head height. Measure oval heads from the largest diameter point where the dome top meets the conical bearing surface to the tip. The m3 and m4 nominal screw sizes have two drilled holes spaced 180 degrees apart.

Metric hex head bolts product grade b iso 4014 nominal size thread pitch rwtue h fgk threaded length washer face thickness fillet. 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. All measurements in millimeters nominal size d body diameter head thickness across the flats across corners d max d min h max h min f max f min c max c min m10 10 00 9 78 6 63 6 17 17 00 15 73 18 48 17 77 m12 12 00 11 73 7 76 4 24 19 00 17 73 20 78 20 03 m14 14 00 13 73 9 09. For button cheese hex pan socket and low socket heads measure length from under the head.

With an extended tip that locks into a mating hole or slot sometimes known as a dog point they are often used to align and secure parts such as gears and pulley wheels. Also known as hex cap screws or machine bolts. Din 931 spec for maximum width across flats on these three diameters are 17 19 22 mm respectively. Stainless steel 18 8 a 2 also known as a 2 stainless 18 8 is the most common grade of stainless steel for general use.

Stainless steel 316 a 4 also known as a 4 stainless 316 is a highly corrosion resistant grade of stainless steel. A bolt with a six sided head. Nominal screw sizes m5 and larger have six drilled holes spaced 60 degrees apart unless the purchaser specifies two drilled holes. Jis b1180 and three sizes of iso 4014 and iso 4017 have heads that are smaller than their din.

Shop high quality hex bolts from ita fasteners at the reasonable price. For partially threaded the minimum thread length is longer for larger bolt sizes. Metric hex head bolts have a hex head and coarse or fine machine screw threads. Select from partially threaded or fully threaded.