DINboltsHexagon head

DIN 933 Hexagon Head Screw / Bolt — Full Thread

A hexagon head fastener threaded all the way to the head. Glyph marking on the head identifies the property class, normally 8.8, 10.9 or A2-70.

Dimensioned drawing — DIN 933 M12 × 70k 7.5L 70⌀20.03⌀12
DIN 933 M12 × 70 — Hexagon headNominal dimensions in mm · Not to scale

Dimensions12 sizes · millimetres

Thread dPitch P (mm)Width across flats s (mm)Width across corners e (mm)Head height k (mm)
M40.777.662.8
M50.888.793.5
M611011.054
M81.251314.385.3
M101.51617.776.4
M121.751820.037.5
M1422123.358.8
M1622426.7510
M182.52730.1411.5
M202.53033.5312.5
M222.53437.7214
M2433639.9815

Nominal dimensions in millimetres as published in DIN 933. Tolerances, material requirements and marking are defined separately by the issuing body.

Available sizeslinked to individual specification pages

M40.7 mm pitch
M4 × 10M4 × 12M4 × 16M4 × 20M4 × 25M4 × 30M4 × 35M4 × 40M4 × 50
M50.8 mm pitch
M5 × 10M5 × 12M5 × 16M5 × 20M5 × 25M5 × 30M5 × 35M5 × 40M5 × 50
M6
M6 × 10M6 × 12M6 × 16M6 × 20M6 × 25M6 × 30M6 × 35M6 × 40M6 × 50M6 × 60
M81.25 mm pitch
M8 × 12M8 × 16M8 × 20M8 × 25M8 × 30M8 × 35M8 × 40M8 × 50M8 × 60M8 × 80
M101.5 mm pitch
M10 × 16M10 × 20M10 × 25M10 × 30M10 × 35M10 × 40M10 × 50M10 × 60M10 × 70M10 × 80M10 × 100
M121.75 mm pitch
M12 × 20M12 × 25M12 × 30M12 × 35M12 × 40M12 × 50M12 × 60M12 × 70M12 × 80M12 × 100M12 × 120
M14
M14 × 25M14 × 30M14 × 35M14 × 40M14 × 50M14 × 60M14 × 70M14 × 80M14 × 100M14 × 120
M16
M16 × 25M16 × 30M16 × 35M16 × 40M16 × 50M16 × 60M16 × 70M16 × 80M16 × 100M16 × 120
M182.5 mm pitch
M18 × 30M18 × 35M18 × 40M18 × 50M18 × 60M18 × 70M18 × 80M18 × 100M18 × 120
M202.5 mm pitch
M20 × 30M20 × 35M20 × 40M20 × 50M20 × 60M20 × 70M20 × 80M20 × 100M20 × 120
M222.5 mm pitch
M22 × 40M22 × 50M22 × 60M22 × 70M22 × 80M22 × 100M22 × 120
M24
M24 × 40M24 × 50M24 × 60M24 × 70M24 × 80M24 × 100M24 × 120

Thread referencesused by the sizes above

M4 × 0.7M5 × 0.8M8 × 1.25M10 × 1.5M12 × 1.75M18 × 2.5M20 × 2.5M22 × 2.5