Cross Recessed Countersunk (Flat) Head Screws (Countersunk Heads according to ISO)
Normally these screws are made in the sizes !or which weight details are given.
If the screws are to be supplied with captive washer components, the designation must be augmented according to DIN 6900.

Check out other specifications
Standard Specification for Steel Transmission Tower Bolts, Zinc-Coated and Bare
Securing Parts for Rolling Bearings – Snap Rings for Bearings with Ring Groove
Prevailing torque type hexagon nuts with flange (with non-metallic insert) (ISO 7043 : 1997, modified) English version of DIN EN 1663
Cross Recessed Countersunk (Flat) Head Screws (Countersunk Heads according to ISO)
Coiled, heavy duty spring-type straight pins (ISO 8748 : 1987) English version of DIN EN 28 748
Fasteners – Technical delivery conditions – Prevailing torque type nuts