Cross Recessed Countersunk (Oval) Head Screws (Countersunk Heads according to ISO)
Normally these screws are made in the sizes for 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.
Recesses and recess penetration gauges according to DIN 7962.
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STEEL TAPPING SCREWS FOR COLD-FORMED STEEL FRAMING CONNECTIONS
Standard Specification for Carbon and Alloy Steel Nuts for Bolts for High Pressure or High Temperature Service, or Both
Thread run-outs for fasteners with thread in accordance with ISO 261 and ISO 262
Standard Specification for Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing
Mechanical properties of fasteners – Nuts with specified proof load values – Fine pitch thread (ISO 898-6 : 1988) English version of DIN EN 20 898 Part 6