sell 40Cr meterial, segment bolt and nut,plow bolt and nut,bolt,nut,bolt&nut

we can manufacture all kind of segment bolt and nut for Komatsu 6D355 construction machine.

we can manufacture all kind of segment bolt and nut for Komatsu 6D355 construction machine.

1. Products Information

Themechanical grade is 12.9, case hardening is HRC 38-42, Material is 40CR,and the surface is treated with bluing, screw thread has two type description, one is the metric system:M12-M24-6g, another is denominator system:1/2-1/4--2A.the specification can be customized 

 

2.Design / Structure / Details Pics

Products show:

3.Advantages / Features:

1). Materials:

Our company has  purchased steel from several large steel groups , such as Hangzhou Steel Mill, Shanghai Bashan Steel Mill, Beijing Shrugging Steel Mill whose steel have good mechanical properties and stability of chemical component. it keep the bolt to be of high strength

2). Manufacture Procession

First, we have our own High-precision Digital Machining center for mould making in special Mould Workshop, excellent mould make product beautiful appearance  and its size accurately.

The second, we adopt blasting procession, removing Oxidation surface , make the  surface to be bright and clean and uniform and beautiful.

The third, in heat treatment: We use the Controlled-atmosphere Automatic heat treatment Furnace, we also have four mesh belt convey furnaces, Can deal with the products in different sizes keeping the non-oxidation surface

3). The all process quality control:

  The quality control is strictly performed from buying raw materials in warehouse to different machining procession and to final packing. We have Magnetic Powder Detector, Material Testing Machine,  Metallographic Microscope, such testing instruments, guarantee product high quality and beautiful appearance.

4). Our production capacity

Single bolts, every month can produce 1.7 million bolts. Now we buy a Full Automatic Cool-forging Machine. this greatly enhances our production capacity with more quality and more beautiful appearance.

There are some segment size as follow for your reference:

1	SM9/16*1 14/25	9/16''*1 14/25''UNF
2	9W9265+8H5724	1/2''*1 1/2''UNF
3	3S8182+7H3607	5/8''*1 7/8''UNF
4	6V0937+7H3607	5/8''*2 7/64''UNF
5	1171617+7H3608	3/4''*1 15/16''UNF
6	SM3/4*2	3/4''*2''UNF
7	5P4130+7H3608	3/4''*2 5/8''UNF
8	SM3/4*2 7/25	3/4''*2 7/25''UNF
9	3S0336+7H3608	3/4''*2 3/8''UNF
10	5P7665+7H3608	3/4''*2 1/2''UNF
11	SM3/4*2 16/25	3/4''*2 16/25''UNF
12	9S2727+7H3609	7/8''*2 9/16''UNF
14	9W8328+7H3609	7/8''*3 3/16''UNF
15	7T1248+7H3609	7/8''*3''UNF
13	5P0233+2M5656	1''*3''UNS
16	5P5422+2M5656	1''*3 5/8''UNS
17	09203-11860+01803-11824	M18*1.5*60
18	SM22070	M22*1.5*70
19	SM22070	M22*1.5*70
20	154-27-12320+01803-32228	M22*1.5/22.9*70.4
21	SM24049	M24*1.5*49
22	SM24068	M24*1.5*68
23	155-27-12181+01803-02228	M22*1.5*71
24	SM24079	M24*1.5*79
25	178-27-11150+01803-02430	M24*1.5/26*80
26	195-27-12632+01803-02430	M24*1.5/26*90
27	195-27-31641+195-27-31871	M24*1.5*90
28	SM27095	M27*2*95