Countersunk head screw with hexagon socket ISO 10642, A4-070 stainless steel, plain

Name: Countersunk head screw with hexagon socket ISO 10642, A4-070 stainless steel, plain
Brand: Würth
SKU: 02993 20

DIN 7991 / ISO 10642 bare stainless steel A4
SCR-CS-ISO10642-A4/070-HS2-M3X20

Art.-no. 02993 20

EAN 4050382056726

All versions

Specification

Due to their head geometry, countersunk head screws have a limited load capacity according to this standard and possibly do not meet tensile or torsional strength requirements.

The actual mechanical properties of the screw are unchanged and comply with ISO 3506-1

Depending on the type, these items are supplied with threading almost up to the head

Countersinks for screw heads in accordance with DIN 7991 and ISO 10642 must comply with DIN 74 shape F

Notice

DIN 7991 has been withdrawn and replaced by ISO 10642. There is some limited similarity (some head heights and head diameters changed | Nominal diameters M18, M22, M24 removed | Strength classes 10.9 and 12.9 added).

These screws can only be subjected to limited loads due to their head geometry, see DIN EN ISO 3506-1

Technical information


Thread type x nominal diameter (d₁)	M3
Length (l₁)	20 mm
Head diameter (d_k)	5.81 mm
Head height (k₁)	1.86 mm
Internal drive (s₁)	HS2
Standards	ISO 10642
Material	Stainless steel A4
Property class	070
Surface	Plain
RoHS-compliant	Yes
Head type	Countersunk head
Drive type	Hexagon socket
Thread type	Metric thread
Thread form	Standard metric thread
Thread design	Full thread
Product class	A