Metric Male Fitting

Unlike American and British threads, which are expressed by the number of threads per inch, metric male fittings are expressed by pitch. This is the biggest difference between them.

Followed ISO 84341 DIN 3861 standard, with 24 degree cone seat, the code No. of this metric male fitting is 10411(light series) and 10511(heavy series). There is another metric male fitting with 74 degree cone seat, the code No. is 16711

The material of metric male fitting is caron steel, the treatment is white Cr6free zinc plating, the packaging way for metric male fitting is mass packaging, we will put our bolts into plastic bag, then put them into boxes, then package the boxes into plywood pallet, so there will be no problem for delivering our bolts by sea, and you can move the pallet easily by forklift, the pallet is around 1CBM.

The main purpose of salt spray test is to check anti-rust ability of our fittings. White rust is the rust of the coating, and red rust is the rust of the substrate. The longer the time of rust generation, the better the quality of the electroplated parts. White rust appears early and the coating is thin, causing red rust to come out quickly. Substrate iron encounters red rust due to corrosion, and red rust is an oxide of iron. White rust is the rust of the electroplating layer itself, and red rust is the rust of the plated parts. Generally, the time of red rust is much longer than that of white rust, because the coating also rusts from the surface. surface.

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