General dimensions of structural bolts as1252 1983 bolt dia.
M16 socket head bolt dimensions.
For example a bolt and nut may be described as being diameter.
In fact the bolt diameter is a little smaller and the nut diameter a little larger.
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.
Nominal screw sizes m5 and larger have six drilled holes spaced 60 degrees apart unless the purchaser specifies two drilled holes.
But neither the external threads of the bolt nor the internal threads of the nut are exactly 500 in diameter.
If dimensions are critical please check with tr what standard we can supply before specifying.
Drilled head metric hexagon socket head cap screws normally are not available in screw sizes smaller than m3 nor larger than m36.
This chart contains information on number metric and fractional number socket head cap screws along with tap drill information.
Socket head cap screws are a more modern alternative standard machine fastener to the standard hexagon headed bolt or setscrew as found on much modern machinery.
Similar to a button head socket screw but with an 82 degree countersunk flat head.
Nominal diameter is more of a label than a size.
The m3 and m4 nominal screw sizes have two drilled holes spaced 180 degrees apart.
Width across flats width across corners height of head d p ds s e k max.
Catalogue screws and bolts hexagon socket screws countersunk head tr00006530 000.
Socket head cap screws din 912 iso 4762 m16 in a2 stainless steel also known as an allen screw or allen bolt or simply a cap screw.
M12 1 75 12 70 11 30 21 20 16 24 25 22 78 7 95 7 05 m16 2 0 16 70 15 30 27 26 16 31 2 29 56 10 75 9 25.
M16 x 30mm countersunk head hexagon socket drive screw in grade 10 9 steel self colour with dimensional measurements and 3d model in a range of finishes.
Head height is 50 of a standard socket head and the socket size is smaller.
Socket head cap screw m16 2mm thread 50mm long fully threaded alloy steel unbrako 12 9 black oxide pack of 25 misc.
Similar thread design as a socket cap screw but the dome shaped head is wider and has a lower profile.