countersunk head with square neck
1потайная головка с квадратным подголовком — [ГОСТ 27017 86] Тематики крепежные изделия Обобщающие термины формы головок EN countersunk head with square neck DE Sekkopf mit Vierkantansatz FR tête fraisée à collet carré …
2Screw — This article is about the fastener. For other uses, see Screw (disambiguation). Screws come in a variety of shapes and sizes for different purposes. U.S. quarter coin (diameter 24 mm) shown for scale. A screw, or bolt, is a type of fastener… …
