ISOscrewsHeadless

ISO 4029 Hexagon Socket Set Screw — Cup Point

ISO equivalent of DIN 916, same cup point geometry and socket sizes.

Dimensioned drawing — ISO 4029 M8 × 8L 8⌀4⌀8
ISO 4029 M8 × 8 — HeadlessNominal dimensions in mm · Not to scale

Dimensions8 sizes · millimetres

Thread dPitch P (mm)Socket size s (mm)
M30.51.5
M40.72
M50.82.5
M613
M81.254
M101.55
M121.756
M1628

Nominal dimensions in millimetres as published in ISO 4029. Tolerances, material requirements and marking are defined separately by the issuing body.

Available sizeslinked to individual specification pages

M30.5 mm pitch
M3 × 3M3 × 4M3 × 5M3 × 6M3 × 8M3 × 10M3 × 12M3 × 16
M40.7 mm pitch
M4 × 4M4 × 5M4 × 6M4 × 8M4 × 10M4 × 12M4 × 16M4 × 20
M50.8 mm pitch
M5 × 5M5 × 6M5 × 8M5 × 10M5 × 12M5 × 16M5 × 20M5 × 25
M6
M6 × 6M6 × 8M6 × 10M6 × 12M6 × 16M6 × 20M6 × 25M6 × 30
M81.25 mm pitch
M8 × 8M8 × 10M8 × 12M8 × 16M8 × 20M8 × 25M8 × 30M8 × 40
M101.5 mm pitch
M10 × 10M10 × 12M10 × 16M10 × 20M10 × 25M10 × 30M10 × 40M10 × 50
M121.75 mm pitch
M12 × 12M12 × 16M12 × 20M12 × 25M12 × 30M12 × 40M12 × 50M12 × 60
M16
M16 × 16M16 × 20M16 × 25M16 × 30M16 × 40M16 × 50M16 × 60M16 × 80

Thread referencesused by the sizes above

M3 × 0.5M4 × 0.7M5 × 0.8M8 × 1.25M10 × 1.5M12 × 1.75