Handan city Yongnian District Maide Fasteners Co. Ltd
Handan city Yongnian District Maide Fasteners Co. Ltd Galvanized Hex Bolts，Fully Threaded Hex Bolts，Galvanized Hex Nut
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Durable M18 Carbon Steel Hex Bolt With Zinc Plated Surface Treatment
Carbon Steel Hex Bolt DIN 961 M30 Grade 8.8 Black Oxide Full Thread,the material is carbon steel,the standard is DIN961,the grade is 8.8 class,the surface treatment is black oxide,this is full thread bolt,the size is M30.
Our company have kinds of main product,including nuts,washers,hex bolt,square head bolt,U bolt,expande bolt,stud bolt,thread rod,etc.The size of bolts from M8 to M52.We can produce according to DIN,GB,ISO,JIS,etc.We are manufacturer,have own factories,so,we can guarantee the quality of our products.The raw materials we use are produced by regular steel mills.Quality is the life line of our company,we would like to provide the best quality to our customer to implement long term cooperation for win-win.
Six angle bolt: a fastener consisting of two parts, the head and the screw (the cylinder with external thread). It needs to cooperate with the nut to fasten and connect two parts with through holes.
This form of connection is called a bolt connection. If the nut is swirled down from the bolt, the two parts can be separated, so the bolt connection is a detachable connection.
Advantage:
The advantage of acid tin plating is that the plating speed is faster. And the coating is bright and meticulous, deep plating ability. The plating solution has a strong tolerance to impurities, and the operation at room temperature is more energy saving. However, the plating method also has shortcomings, that is, the dispersing ability of the bath is poor, the porosity of the coating is higher, the brazing is not as good as the alkaline tin plating, and the two valence tin is hydrolyzed. Therefore, the six angle head bolt acid tin plating is divided into sulphate tin plating, fluorborate tin plating and oxide tin plating because of different conductive medium. At present, some special industrial six - corner head bolts are used in this tin plating process.
Specification
| d(nominal diameter) | M14 | M16 | M18 | M20 | M22 | M24 | M27 | M30 | M33 | ||
| P(screw pitch) | 1.5 | 1.5 | 1.5/2 | 1.5/2 | 1.5/2 | 1.5/2 | 2 | 2 | 2 | ||
| K | A | max | 8.98 | 10.18 | 11.72 | 12.72 | 14.22 | 15.22 | / | / | / |
| min | 8.62 | 9.82 | 11.28 | 12.28 | 13.78 | 14.78 | / | / | / | ||
| B | max | 9.09 | 10.29 | 11.85 | 12.85 | 14.35 | 15.35 | 17.35 | 19.12 | 21.42 | |
| min | 8.51 | 9.71 | 11.15 | 12.15 | 13.65 | 14.65 | 16.65 | 18.28 | 20.58 | ||
| s | max | 22 | 24 | 27 | 30 | 32 | 36 | 41 | 46 | 50 | |
| min | A | 21.67 | 23.67 | 26.67 | 29.67 | 31.61 | 35.38 | 40 | 45 | 49 | |
