Standard metric sizes are defined in iso 2936 2014 assembly tools for screws and nuts hexagon socket screw keys also known as din 911 and measured in millimeters mm are.
Hex socket head bolt dimensions metric.
Choose from our selection of metric hex socket head cap screws including socket head screws flat head screws and more.
The tamper resistant hex drive also known as a pin in hex drive makes them difficult to remove without special tools.
Astm a574 is a dedicated material specification for socket head allen bolts.
Nominal screw sizes m5 and larger have six drilled holes spaced 60 degrees apart unless the purchaser specifies two drilled holes.
The m3 and m4 nominal screw sizes have two drilled holes spaced 180 degrees apart.
1 00 mm s max.
14 38 mm m max.
24 25 27 30 32 36 42 and 46 mm.
All dimensions are in millimeters.
2 to 6 in 0 5 mm increments.
1 25 mm s max.
1 50 mm s max.
Made from 18 8 stainless steel these metric button head screws have good chemical resistance and may be mildly magnetic.
Socket head bolt dimensions are defined in both metric and imperials sizes with unified national coarse pitch unc fine pitch unf fixed pitch un and iso metric thread profile.
Tools for hex head bolts and socket heads metric tools for hex head bolts and socket heads diameter 1 4 5 16 3 8 7 16 1 2 9 16 5 8 3 4 7 8 1 1 8 1 1 4 1 3 8 1 1 2 1 3 4 wrench size 7 16 1 2 9 16 5 8 3 4 13 16 15 16 1 1 8 1 5 16 1 1 2 1 11 16 hex key size 3 16 1 4 5 16 3 8 3 8 7 16 diameter m16 mio m12 m14 m16 m18 m20 m22 m24 m30 wrench size 7 mm.
In stock and ready to ship.
16 00 mm s min.
11 05 mm m max.
8 40 mm m min.
30 34 32 ansi american national standards institute iso international organization for standardisation din deutsches institut für normung jis japanese industrial standard indicates iso standard.
13 00 mm s min.
5 2 mm m min.
12 73 mm e min.
9 78 mm e min.
10 00 mm s min.
0 7 0 9 1 0 1 25 1 3 1 5.
Drilled head metric hexagon socket head cap screws normally are not available in screw sizes smaller than m3 nor larger than m36.
Bolt diameter mm head wrench size mm ansi iso din jis din iso heavy hex.
Inch fastenersmetric fasteners wrench sizes in hex key sizes in wrench hex key sizes mm diameter hex heavy hex diameter socket diameter hex socket 1 4 7 16 1 1 16 m3 5 50 2 50 5 16 1 2 2 5 64 m4 7 00 3 00.
Hex socket head cap screws metric thread hexagon allen drive machine bolt nuts metal standard fastener hardware alloy steel assortment kit set 415pcs black 12 9 class m3 m4 m5 4 4 out of 5 stars 8 19 99 19.