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Washers
Key words:
ISO 7380 - 2004 Hexagon Socket Button Head Screws.
DIN 6927 All Metal Hex Flange Nut
DIN 6927 - 1983 Prevailing Torque Type All-Metal Hexagon Nuts With Flange
DIN 7985 Phillips Pan Head Machine Screw
The cross recessed pan head screw is a kind of machine wire screw that uses the cross recess shape, and is generally represented by the letter PM.
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