Cross recessed raised countersunk head wood screw (drawing 7811-7121)
Internet address: http://www.rmz.by/products/wood_screws/224/

Table of the sizes

thread pitch 3,9
d  3,9
D 7,5
k 2,30
f 1,30
Surface Diameter d(mm) Length l(mm) Weight,
1000 items. (kg)
Uom
blank 3.90 19.00 1.49 kg
zinc 3.90 19.00 1.49 kg
 
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