Jiangsu Zhonggongte Metallurgical Technology Co., Ltd.
                                                                                                           
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4 Years
Since 2022
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2507 Customized Stainless Roofing Screws Complete Variety

Price Negotiable
Price: Price is negotiated based on the required specifications and quantity
MOQ: 100kg
Delivery Time: 5-8 working days, depending on the parameters required for negotiation
Brand: Zhonggong Special Metallurgy
Product Description

Stainless steel bolts, stainless steel nuts, stainless steel screws, can be customized, complete variety


 

 

Hex Head Bolt Material:
The material of the bolt has an important impact on its performance and service life. According to different usage environments and requirements, appropriate materials should be selected. For example, stainless steel bolts are suitable for corrosive environments such as marine and chemical industries, while ordinary carbon steel bolts are suitable for general structural connections.

 

 

 

Hexagon Head Bolts Dimensions:
The size of the bolt, including diameter, length, etc., should be selected according to the thickness of the connection and the required preload force. Generally speaking, the length of the bolt should meet the requirements of the thickness of the connecting piece, and the installation space and adjustment allowance should also be considered. The diameter of the bolt should be selected according to the size of the pretightening force. If it is too large, it will lead to waste, and if it is too small, it may not meet the requirements.

 

Hexagon Head Bolts Specification:

 

d S H r D L (Range) Weight (kg) of 100mm L (Series)
10 17 7 0.5 19.6 20-200 0.072

20,25,30,35,

40,45,50,55,

60,65,70,75,

80,90,100,110,

120,130,140,

150,160,180,

200,220,240,260

12 19 8 0.8 21.9 25-260 0.103
-14 22 9 25.4 25-260 0.141
16 24 10 1 27.7 30-300 0.185
-18 27 12 31.2 35-300 0.242
20① 30 13 34.6 35-300 0.304
-22 32 14 36.9 50-300 0.369
24① 36 15 1.5 41.6 55-300 0.459
-27 41 17 47.3 60-300 0.609
30① 46 19 53.1 30-300 0.765
36① 55 23 2 63.5 80-300 1.166
42 65 26 75 80-300 1.68
48 75 30 86.5 110-300 1.857
56 85 35 98 160-380 2.646
64 95 40 3 109 180-380 3.561
72 105 45 120 4.626
80 115 50 132 200-380 5.864
90 130 57 150 220-500 7.584
100 145 63 167 8.802

 

Note:

1. L0 does not include the screw tail. When L≤125: L0=2d+6; when L>125~200: L0=2d+12; when L>200: L0=2d+25.

2. Marking example: Bolt M10×100GB5-76 is represented as a hexagonal head bolt with a diameter of 10 mm, a length of 100 mm, a coarse ordinary thread, mechanical properties of level 5.9, and no surface treatment. ①Only wedge bolts

 

 

Why Choose us?

1. Our company have more than 15 years experience in the Stainless Steel Screws field.
2. We have Professional experienced engineers, sales and overseas engineers.
3. We have automatically generate machines produce the screws, Bolts, Nuts, Washers and so on .
4. Our high productivity can make sure your quickly delivery time.


Advantages


1. Exact forging standard of knife edge and high hardness of surface make it easy to drill.
2. Using the advanced technology to control the core hardness, avoiding rupture effectivity,
3. Quick self drilling , drilling , tapping, locking the oncce, and combining with the strength.
4. Save contruction time, improve working efficency.
5. Technology, professional manufacturing , quality assurance.
6. Our company have more than 13 years experience in the Stainless Steel Screws field.
7. We have Professional experienced engineers, sales and overseas engineers.
8. We have automatically generate machines produce the screws, Bolts, Nuts, Washers and so on .
9. Our high productivity can make sure your quickly delivery time

 

 

 

 

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Jiangsu Zhonggongte Metallurgical Technology Co., Ltd.
Location New South Stainless Steel Trading Market, Fangcheng Avenue, Wuxi City, Jiangsu Province, 12-101.
Contact Person Zhou

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