Sell 40Cr 12.9 grade high strength Track bolt and nut

Bolt nuts for track shoes;segment ;plow bolts; Class 12.9 high tensile bolts for bulldozers, crawler loaders

1.Products imformation

The mechanical grade is 12.9

Case hardening 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

Bolt drawing:

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.

Workshop Products

4.Factory View

   

5.Certificates

There are more Bolt & Nut model as follow:

1	2B5484+7K1706	D2,933C
2	093-0251+093-0316	D3,D4,931,933
3	8H7504+6S3419	DH028/S50/S55/R450/R500
4	TB9/16*1 3/4
5	4K7038+7K2017	D3,D4,D4D,931,933,941,215
6	7H3596+7K2017	931,933,941
7	TB5/8*1 15/16	R130LC
8	7H3597+1M1408	D4,D5,D5H,D6,D7,953,955,977,561,
9	TB5/8*2 3/32	R210
10	9G3110+1M1408	225,941,951C,951B
11	SH8756	225,941,951B
12	1S1859+1S1860	D6,D7,D7H,D8,D6H
13	144-32-11211	D60AEPPLS-6
14	207-32-11310	D60AEPPLS-7
15	150-32-21321	D65AEPS-6
16	154-32-21320	D65AEPPLS-7
17	7H3598+1S1860	235,571,572,583
18	6V1792+1S1860	955,963,973,977
19	1S8804/154-32-11210	D80A-8

Sell 40Cr 12.9 grade high strength Track bolt and nut