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
Whitworth Pipe Threads for Tubes and Fittings – Cylindrical Internal Thread and Conical External Thread – Gauging System and Use of Gauges
SCREW, CAP, SOCKET HEAD, FLAT COUNTERSUNK, 82°, CORROSION-RESISTING STEEL, UNC-3A
Plain washers for use with clevis pins, product grade A (ISO 8738 : 1986) English version of DIN EN 28 738
Fasteners – Bolts, screws, studs and nuts – Symbols and designations of dimensions
Overview of European Standards for fasteners
Securing Parts for Rolling Bearings – Snap Rings for Bearings with Ring Groove