Metric finishing washers STB

The name of these washers comes from their bowl shape. This product range is distinguished by the fact that it offers 4 different shapes: the STB 20-3 series and the STB 20-4 series are rather conical while the STB 20-2 and STB 20-5 series are wider. These cup washers are essential items as they improve the aesthetic appearance of a fastener.

本系列垫圈之名称源于其碗状造型。该产品系列独具特色，提供四种不同的形状：STB 20-3 系列和 STB 20-4 系列呈锥形，而 STB 20-2 和 STB 20-5 系列则更为宽大。此类杯状垫圈为必备之物，它们能显著提升紧固件的外观美学。