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Factory directly supply Hexagonal Flange Bolt - DIN6921 Flange Bolt Carbon Steel White Zinc Plated Galvanized Grade 8.8 10.9 12.9 – Hongji

Factory directly supply Hexagonal Flange Bolt - DIN6921 Flange Bolt Carbon Steel White Zinc Plated Galvanized Grade 8.8 10.9 12.9 – Hongji

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Factory directly supply Hexagonal Flange Bolt - DIN6921 Flange Bolt Carbon Steel White Zinc Plated Galvanized Grade 8.8 10.9 12.9 – Hongji Detail:

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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

Flange Bolt White Zinc Plated 6
图片1

d M5 M6 M8 M10 M12 M14 M16 M20
P Pitch Coarse 0.8 1 1.25 1.5 1.75 2 2 2.5
Fine thread1 / / 1 1.25 1.5 1.5 1.5 1.5
Fine thread2 / / / 1 1.25 / / /
b L≤125 16 18 22 26 30 34 38 46
125<L≤200 / / 28 32 36 40 44 52
L>200 / / / / / / 57 65
c Min 1 1.1 1.2 1.5 1.8 2.1 2.4 3
da Type A Max 5.7 6.8 9.2 11.2 13.7 15.7 17.7 22.4
Type B Max 6.2 7.4 10 12.6 15.2 17.7 20.7 25.7
dc Max 11.8 14.2 18 22.3 26.6 30.5 35 43
ds Max 5 6 8 10 12 14 16 20
Min 4.82 5.82 7.78 9.78 11.73 13.73 15.73 19.67
du Max 5.5 6.6 9 11 13.5 15.5 17.5 22
dw Min 9.8 12.2 15.8 19.6 23.8 27.6 31.9 39.9
e Min 8.71 10.95 14.26 16.5 17.62 19.86 23.15 29.87
f Max 1.4 2 2 2 3 3 3 4
k Max 5.4 6.6 8.1 9.2 11.5 12.8 14.4 17.1
k1 Min 2 2.5 3.2 3.6 4.6 5.1 5.8 6.8
r1 Min 0.25 0.4 0.4 0.4 0.6 0.6 0.6 0.8
r2 Max 0.3 0.4 0.5 0.6 0.7 0.9 1 1.2
r3 Min 0.1 0.1 0.15 0.2 0.25 0.3 0.35 0.4
r4 3 3.4 4.3 4.3 6.4 6.4 6.4 8.5
s Max=Nominal 8 10 13 15 16 18 21 27
Min 7.78 9.78 12.73 14.73 15.73 17.73 20.67 26.67

Detail description

Flange Bolt White Zinc Plated 4
IMG_2587 拷贝

Flange bolts. According to the thread classification of Metric standard and ASME standard, according to the head shape it has flat head and concave head.  Flat bottom and serrated bottom can be assigned according to the appearance of the bottom of the head.  The common grade is 8.8, 10.9 and 12.9, and the American grade is Grade 5 and Grade 8.  Materials are 304 stainless steel, 316 stainless steel, 35K, 45# steel, 10B21, 40Cr, 35CrMo, etc.  And we also provide customized service, the head side and flange diameter and head mark can be customized, the minimum order weight is 1000 kg or equivalent quantity.

Flange bolt is composed of hexagonal head and flange plate, its “support area to stress area word ratio” is greater than the ordinary bolt, so this bolt can bear higher preload, anti-loose performance is also better, so it is widely used in automobile engines, heavy machinery and other products.

There are Metric standard, size from M6-M20 and UN standard, size from 1/4″-3/4″. Most of them have stock in warehouse.

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About us

Yongnian Hongji
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Product detail pictures:

Factory directly supply Hexagonal Flange Bolt - DIN6921 Flange Bolt Carbon Steel White Zinc Plated Galvanized Grade 8.8 10.9 12.9  –  Hongji detail pictures

Factory directly supply Hexagonal Flange Bolt - DIN6921 Flange Bolt Carbon Steel White Zinc Plated Galvanized Grade 8.8 10.9 12.9  –  Hongji detail pictures

Factory directly supply Hexagonal Flange Bolt - DIN6921 Flange Bolt Carbon Steel White Zinc Plated Galvanized Grade 8.8 10.9 12.9  –  Hongji detail pictures

Factory directly supply Hexagonal Flange Bolt - DIN6921 Flange Bolt Carbon Steel White Zinc Plated Galvanized Grade 8.8 10.9 12.9  –  Hongji detail pictures

Factory directly supply Hexagonal Flange Bolt - DIN6921 Flange Bolt Carbon Steel White Zinc Plated Galvanized Grade 8.8 10.9 12.9  –  Hongji detail pictures


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It adheres for the tenet "Honest, industrious, enterprising, innovative" to develop new products and solutions continuously. It regards shoppers, success as its individual success. Let us produce prosperous future hand in hand for Factory directly supply Hexagonal Flange Bolt - DIN6921 Flange Bolt Carbon Steel White Zinc Plated Galvanized Grade 8.8 10.9 12.9 – Hongji , The product will supply to all over the world, such as: Puerto Rico, Bangladesh, Bangkok, We rely on high-quality materials, perfect design, excellent customer service and the competitive price to win the trust of many customers at home and abroad. 95%products are exported to overseas markets.
  • 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 Deirdre from Miami - 2017.01.28 18:53
    The quality of the products is very good, especially in the details, can be seen that the company work actively to satisfy customer's interest, a nice supplier.
    5 Stars By Honorio from Cancun - 2018.06.21 17:11
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