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China wholesale M8 X 100 Bolt - DIN7991 Hex Socket Flat Head CSK Screw Grade Stainless Steel 304 316 A2-70 A4-80 – Hongji

China wholesale M8 X 100 Bolt - DIN7991 Hex Socket Flat Head CSK Screw Grade Stainless Steel 304 316 A2-70 A4-80 – Hongji

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Being supported by an state-of-the-art and skilled IT team, we could supply technical support on pre-sales & after-sales service for S31803 S32750 S32760 Stud Bolts , M16 X 50mm Bolts , Hexagonal Flange Bolt , We warmly welcome friends from all walks of life to cooperate with us.
China wholesale M8 X 100 Bolt - DIN7991 Hex Socket Flat Head CSK Screw Grade Stainless Steel 304 316 A2-70 A4-80 – Hongji Detail:

Description

QUICK Response

QUICK Quotation

QUICK Delivery

READY TO SHIP DELIVERY

10000+ SKU in warehouse

We Commit for RTS items:

70% items delivered within 5 days

80% items delivered within 7 days

90% items delivered within 10 days

Bulk orders, please contact customer service

Hex Socket Button Head Screw Zinc Plated 5
ISO7380 Hex Socket Pan Head Screw Grade8

d

M3

M4

M5

M6

M8

M10

M12

M16

P

Pitch

0.5

0.7

0.8

1

1.25

1.5

1.75

2

a

Max

1

1.4

1.6

2

2.5

3

3.5

4

Min

0.5

0.7

0.8

1

1.25

1.5

1.75

2

dk

Max

5.7

7.6

9.5

10.5

14

17.5

21

28

Min

5.4

7.24

9.14

10.07

13.57

17.07

20.48

27.48

e

Min

2.303

2.873

3.443

4.583

5.723

6.863

9.149

11.429

k

Max

1.65

2.2

2.75

3.3

4.4

5.5

6.6

8.8

Min

1.4

1.95

2.5

3

4.1

5.2

6.24

8.44

s

Nominal

2

2.5

3

4

5

6

8

10

Max

2.08

2.58

3.08

4.095

5.14

6.14

8.175

10.175

Min

2.02

2.52

3.02

4.02

5.02

6.02

8.025

10.025

t

Min

1.04

1.3

1.56

2.08

2.6

3.12

4.16

5.2

Minimum tension load(N) 

8.8Grade

3220

5620

9080

12900

23400

37100

53900

100000

10.9Grade

4180

7300

11800

16700

30500

48200

70200

130000

12.9Grade

4910

8506

13800

19600

35700

56600

82400

154000

Detail description

Hex Socket Button Head Screw Zinc Plated 5
ISO7380 Hex Socket Pan Head Screw Grade9

There are many types of screws, one is called hexagon socket screws. When purchasing, the salesperson will also ask you which type to choose. Originally, there are many classifications of hexagon socket screws.

There are several types of hexagon socket screws
1. There is a type of hexagon socket screw called pan head. After the screw is installed, its head protrudes on the surface, which makes it more convenient to screw the screw later. This product can be seen on some household appliances.

2.There are countersunk head hexagon socket screws, which means that it will not protrude from the surface after screwing, and it will not affect the appearance. However, if there is a problem that is difficult to screw when screwing, the screw cannot be started.

3.There are also cylindrical head hexagon socket screws, which are similar to the second type of screws. They are relatively strong and require a wrench of the corresponding specification to remove the screws. Generally speaking, they are used on machine tools.

The screw is rusted and can’t be unscrewed, what should I do?
In life, many friends have encountered similar problems. Once the screws are rusted, no matter how much effort is used, they cannot be unscrewed. Because the screw is exposed to the air, if the surrounding environment is relatively humid, after a long time, it is prone to rust. In fact, don’t use brute force, you need to master the skills of screwing.

Tap it first, tap the corroded screw with a wrench, and tap the handle lightly, because if the corroded part is loose, it can be unscrewed later.

If it still doesn’t work after tapping, you can drop a small amount of oil, and then rotate it gently with the wrench a few times. If you don’t have oil at home, you can also use Coke because it will remove rust.

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Packaging and delivery
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Packaging and delivery2
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Packaging and delivery3

About us

Yongnian Hongji
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Product detail pictures:

China wholesale M8 X 100 Bolt - DIN7991 Hex Socket Flat Head CSK Screw Grade Stainless Steel 304 316 A2-70 A4-80  –  Hongji detail pictures

China wholesale M8 X 100 Bolt - DIN7991 Hex Socket Flat Head CSK Screw Grade Stainless Steel 304 316 A2-70 A4-80  –  Hongji detail pictures

China wholesale M8 X 100 Bolt - DIN7991 Hex Socket Flat Head CSK Screw Grade Stainless Steel 304 316 A2-70 A4-80  –  Hongji detail pictures

China wholesale M8 X 100 Bolt - DIN7991 Hex Socket Flat Head CSK Screw Grade Stainless Steel 304 316 A2-70 A4-80  –  Hongji detail pictures

China wholesale M8 X 100 Bolt - DIN7991 Hex Socket Flat Head CSK Screw Grade Stainless Steel 304 316 A2-70 A4-80  –  Hongji detail pictures


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Our company since its inception, constantly regards product or service high quality as business life, continually improve creation technology, make improvements to product high-quality and consistently strengthen business total high-quality management, in strict accordance together with the national standard ISO 9001:2000 for China wholesale M8 X 100 Bolt - DIN7991 Hex Socket Flat Head CSK Screw Grade Stainless Steel 304 316 A2-70 A4-80 – Hongji , The product will supply to all over the world, such as: South Korea, Rwanda, belarus, We will supply much better products with diversified designs and professional services. At the same time, welcome OEM, ODM orders, invite friends at home and abroad together common development and achieve win-win, integrity innovation, and expand business opportunities! If you have any question or need more information please feel free to contact us. We are looking forward to receiving your enquiries soon.
  • Staff is skilled, well-equipped, process is specification, products meet the requirements and delivery is guaranteed, a best partner!
    5 Stars By Sarah from Namibia - 2017.11.29 11:09
    The customer service reprersentative explained very detailed, service attitude is very good, reply is very timely and comprehensive, a happy communication! We hope to have a opportunity to cooperate.
    5 Stars By Susan from Rwanda - 2018.12.28 15:18
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