Hexagon screw, countersunk head
DIN 7991, stainless steel A4, plain
DIN 7991 A4 M2,5X4
With registration you can access the Würth Elektro online shop selection.
ISO 10642 replaces DIN 7991 | There are some limited consistencies (some screw head heights and diameters have been amended | the M18, M22, and M24 nominal diameters have been removed | stainless steel models have been removed | property classes 10.9 and 12.9 have been added).
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, see DIN EN ISO 898-1
Datasheets(X)
 | |
Thread type x nominal diameter (d) | M2.5 |
Length (l) | 4 mm |
Head diameter (d) | 5 mm |
Standards | DIN 7991 |
Material | Stainless steel A4 |
Surface | Plain |
Head type | Countersunk head |
Drive type | Hexagon socket |
Thread type | Metric thread |
Thread form | Standard metric thread |
Last viewed
Surface frame IP21 21/85 Exxact
Wing repair washer, fender washer, round hole, primarily for wood substrates
Tapered washer, eyelet, shape 4
Terminal block 2102 series with lever 2 conductor GNYE TOPJOB® S
Illuminated selector switch Harmony
Signal cable LIYCY
Sealing ring AWS
Through standoff WESO
Circuit board support TRDLCBST
Lighting rail cover CS3, Unipro