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Custom DIN 7991 / ISO 10642 Countersunk Socket Screws

Hex Socket Sunk Screws

Use legacy DIN 7991 or current ISO 10642 geometry as the starting point for a custom countersunk socket screw. Specify the 90-degree head angle, head diameter and height, flush seating, hex-socket engagement, thread, length, material, property class, finish, tolerances and inspection requirements.

Standards
  • DIN 7991

Create Your DIN 7991 Drawing Online

Use this DIN 7991 drawing generator to configure dimensions, review the technical drawing and export a custom drawing for manufacturing. Whether the specification is written as DIN 7991 or DIN7991, this online drawing tool covers the same Hex Socket Sunk Screws standard reference.

Configure Your Custom DIN 7991 Countersunk Screw

DIN 7991 is the legacy designation and ISO 10642 / DIN EN ISO 10642 is the modern standards route. The screw and mating countersink must use a compatible 90-degree seating geometry, and countersunk-head strength must not be assumed from a cylindrical-head screw. Modified head, socket, thread or seating requirements will be manufactured to the approved drawing.

DIN 7991

Hex Socket Sunk Screws

Technical Data Sheet

ETERNAL FASTENER
Wuxi, Jiangsu, China
Web: www.fasteneref.com
WhatsApp: +8615951571207
DIN 7991
DIN 7991 Hex Socket Sunk Screws
Product code
Product specification
M6x16
Product standard
DIN 7991
Material / grade
Steel 45
Unit
mm
Mechanical properties
8.8
DIN 7991 technical drawing
Dimension
Parameter (mm)
Dimension
Parameter (mm)
d
M6
P
1
L
15.65~16.35
dk
11.57~12
e
4.58
k
3.3
s
4.02~4.12
t
2.25~2.5

max = maximum; min = minimum

Material
Material type
Steel
Grade
45
General technical requirements
DIN 267-1
Thread
Tolerance
6g
Standard
DIN 13-12 DIN 13-15
Mechanical properties
Property class
8.8
Standard
ISO 898-1
Tolerance
Product grade
A
Standard
ISO 4759-1
Surface Treatment
black (heat or chemical) electroplatingDIN 267-9; ,custom
Surface roughness
DIN 267-2
Surface defects
DIN 267-19
Inspection & packaging
DIN 267-5
Ref. wt / 1000 pcs (kg)
Document No.: EF-DIN-7991Revision: v1Issue date: 2026-09-24Page: 1 / 2

Technical Data Sheet

Dimensions & size table

Unit: mm

DimensionPdk/maxdk/mine/mink/maxs/mins/maxt/maxt/min
M30.565.72.31.72.022.11.20.95
M40.787.642.872.32.522.61.81.55
M50.8109.643.442.83.023.12.32.05
M611211.574.583.34.024.122.52.25
M81.251615.575.724.45.025.143.53.2
M101.52019.486.865.56.026.144.44.1
M121.752423.489.156.58.0258.1754.64.3
M1422726.4811.43710.02510.1754.84.5
M1623029.4811.437.510.02510.1755.35
M182.53332.3813.72812.03212.2125.55.2
M202.53635.3813.728.512.03212.2125.95.6
M222.53635.381613.114.03214.2128.88.44
M2433938.38161414.03214.21210.39.87
Document No.: EF-DIN-7991Revision: v1Issue date: 2026-09-24Page: 2 / 2

Related catalog products

Catalog fasteners commonly specified with this drawing family. Confirm size, material and property class against your project drawing.

Request Custom DIN 7991 Countersunk Screw Manufacturing

Send the completed drawing with the selected DIN or ISO geometry, countersink and flushness requirements, socket, thread, material, property class, finish, quantity and inspection documents for review and quotation.

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