Andrews Fasteners Ltd

AndFast Malaysia SDN BHD

The Fasteners Specialist

0113 246 9992
+44 (0) 113 246 9992
DIN 7991 – Hexagon socket countersunk head cap screws – basic dimensions image

DIN 7991 – Hexagon socket countersunk head cap screws – basic dimensions

DIN 7991 – Hexagon socket countersunk head cap screws

Basic dimensions for selected sizes

SizeM6M8M10M12M16M20M24
dk (min/max)11.57-1215.57-1619.48-2023.48-2429.48-3035.38-3638.38-39
ds (min/max)5.82-67.78-89.78-1011.73-1215.73-1619.67-2023.67-24
e (min.)4.585.726.869.1511.4313.7216
s (nom.)4568101214
s (min/max)4.02-4.125.02-5.146.02-6.148.025-8.17510.025-10.17512.032-12.21214.032-14.212
α (degree)90 60

All dimensions in millimeters