Case back
different screws with different diameters and threads. Suitable for watch bottoms.
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Assortment of 170 case back screws, each 20 pcs. with polished head.
Fitting for many case backs with thread 1.00, 1.20, 1.30, 1.40 mm.
namescrews for case back
VersionAssortment
additionUniversal
contents170 pieces
item No.020189