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factory customized Steel Hexagonal Flange Bolt - ASME B18.3 Hex Socket Cap Head Screw ASTM A574 F837 – Hongji

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  • factory customized Steel Hexagonal Flange Bolt - ASME B18.3 Hex Socket Cap Head Screw ASTM A574 F837 – Hongji
  • factory customized Steel Hexagonal Flange Bolt - ASME B18.3 Hex Socket Cap Head Screw ASTM A574 F837 – Hongji
  • factory customized Steel Hexagonal Flange Bolt - ASME B18.3 Hex Socket Cap Head Screw ASTM A574 F837 – Hongji
  • factory customized Steel Hexagonal Flange Bolt - ASME B18.3 Hex Socket Cap Head Screw ASTM A574 F837 – Hongji
  • factory customized Steel Hexagonal Flange Bolt - ASME B18.3 Hex Socket Cap Head Screw ASTM A574 F837 – Hongji

factory customized Steel Hexagonal Flange Bolt - ASME B18.3 Hex Socket Cap Head Screw ASTM A574 F837 – Hongji

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factory customized Steel Hexagonal Flange Bolt - ASME B18.3 Hex Socket Cap Head Screw ASTM A574 F837 – Hongji Detail:

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ASME B18.3 Hex Socket Cap Screw Drawing

Size 0# 1# 2# 3# 4# 5# 6# 8# 10# 12# 1/4 5/16
d Thread Dia 0.06 0.073 0.086 0.099 0.112 0.125 0.138 0.164 0.19 0.216 0.25 0.3125
PP UNC - 64 56 48 40 40 32 32 24 24 20 18
UNF 80 72 64 56 48 44 40 36 32 28 28 24
UNEF - - - - - - - - - 32 32 32
ds Max=Nominal 0.06 0.073 0.086 0.099 0.112 0.125 0.138 0.164 0.19 0.216 0.25 0.3125
Min 0.0568 0.0695 0.0822 0.0949 0.1075 0.1202 0.1329 0.1585 0.184 0.2095 0.2435 0.3053
dk ① Max 0.096 0.118 0.14 0.161 0.183 0.205 0.226 0.27 0.312 0.324 0.375 0.469
Min 0.091 0.112 0.134 0.154 0.176 0.198 0.216 0.257 0.298 0.314 0.354 0.446
k Max 0.06 0.073 0.086 0.099 0.112 0.125 0.138 0.164 0.19 0.216 0.25 0.312
Min 0.057 0.07 0.083 0.095 0.108 0.121 0.134 0.159 0.185 0.21 0.244 0.306
s Nominal 0.05 0.062 0.078 0.078 0.094 0.094 0.109 0.141 0.156 0.156 0.188 0.25
t Min 0.025 0.031 0.038 0.044 0.051 0.057 0.064 0.077 0.09 0.103 0.12 0.151
b Min 0.5 0.62 0.62 0.62 0.75 0.75 0.75 0.88 0.88 0.88 1 1.12
c Chamfer Max 0.004 0.005 0.008 0.008 0.009 0.012 0.013 0.014 0.018 0.022 0.025 0.033
r Chamfer Max 0.007 0.007 0.007 0.007 0.008 0.008 0.008 0.008 0.008 0.01 0.01 0.01
w Min 0.02 0.025 0.029 0.034 0.038 0.043 0.047 0.056 0.065 0.082 0.095 0.119
Size 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1 1-1/8 1-1/4 1-3/8 1-1/2
d Thread Dia 0.375 0.4375 0.5 0.5625 0.625 0.75 0.875 1 1.125 1.25 1.375 1.5
PP UNC 16 14 13 12 11 10 9 8 7 7 6 6
UNF 24 20 20 18 18 16 14 12 12 12 12 12
UNEF 32 28 28 24 24 20 20 20 18 18 18 18
ds Max=Nominal 0.375 0.4375 0.5 0.5625 0.625 0.75 0.875 1 1.125 1.25 1.375 1.5
Min 0.3678 0.4294 0.4919 0.5538 0.6163 0.7406 0.8647 0.9886 1.1086 1.2336 1.3568 1.4818
dk ① Max 0.562 0.656 0.75 0.843 0.938 1.125 1.312 1.5 1.688 1.875 2.062 2.25
Min 0.54 0.631 0.725 0.827 0.914 1.094 1.291 1.476 1.665 1.852 2.038 2.224
k Max 0.375 0.438 0.5 0.562 0.625 0.75 0.875 1 1.125 1.25 1.375 1.5
Min 0.368 0.43 0.492 0.554 0.616 0.74 0.864 0.988 1.111 1.236 1.36 1.485
s Nominal 0.312 0.375 0.375 0.437 0.5 0.625 0.75 0.75 0.875 0.875 1 1
t Min 0.182 0.213 0.245 0.276 0.307 0.37 0.432 0.495 0.557 0.62 0.682 0.745
b Min 1.25 1.38 1.5 1.5 1.75 2 2.25 2.5 2.81 3.12 3.44 3.75
c Chamfer Max 0.04 0.047 0.055 0.062 0.07 0.085 0.1 0.114 0.129 0.144 0.16 0.176
r Chamfer Max 0.01 0.015 0.015 0.015 0.015 0.015 0.02 0.02 0.02 0.02 0.02 0.02
w Min 0.143 0.166 0.19 0.214 0.238 0.285 0.333 0.38 0.428 0.475 0.523 0.57
Size 1-3/4 2 2-1/4 2-1/2 2-3/4 3 3-1/4 3-1/2 3-3/4 4
d Thread Dia 1.75 2 2.25 2.5 2.75 3 3.25 3.5 3.75 4
PP UNC 5 4.5 4.5 4 4 4 4 4 4 4
UNF - - - - - - - - - -
UNEF - - - - - - - - - -
ds Max=Nominal 1.75 2 2.25 2.5 2.75 3 3.25 3.5 3.75 4
Min 1.7295 1.978 2.228 2.4762 2.7262 2.9762 3.2262 3.4762 3.7262 3.9762
dk ① Max 2.625 3 3.375 3.75 4.125 4.5 4.875 5.25 5.625 6
Min 2.597 2.97 3.344 3.717 4.09 4.464 4.837 5.211 5.584 5.958
k Max 1.75 2 2.25 2.5 2.75 3 3.25 3.5 3.75 4
Min 1.734 1.983 2.232 2.481 2.73 2.979 3.228 3.478 3.727 3.976
s Nominal 1.25 1.5 1.75 1.75 2 2.25 2.25 2.75 2.75 3
t Min 0.87 0.995 1.12 1.245 1.37 1.495 1.62 1.745 1.87 1.995
b Min 4.38 5 5.62 6.25 6.88 7.5 8.12 8.75 9.38 10
c Chamfer Max 0.207 0.238 0.269 0.3 0.332 0.363 0.394 0.426 0.458 0.489
r Chamfer Max 0.02 0.02 0.036 0.036 0.036 0.036 0.036 0.036 0.036 0.036
w Min 0.665 0.76 0.855 0.95 1.045 1.14 1.235 1.33 1.425 1.52

Detail description

According to the hardness of screw wire, carrying tension, yield strength and so on, there is a grade classification of Hexagon socket bolt, that is, the level of hexagon socket bolt. Different products and materials are required to have different grades of hex socket bolts corresponding to them. Hex socket bolts all have the following grades:

Hexagon socket bolts are divided into ordinary and high strength bolts according to grade strength. Ordinary hex socket bolts refer to class 4.8, high strength hex socket bolts refer to class 8.8 or above, including class 10.9 and class 12.9. Hex socket bolts of grade 12.9 are generally black HEX socket cup head screws with knurling, natural color and oil.

The performance grade of hex socket bolts for steel structure connection is 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9, etc. There are more than 10 grades, among which the bolts of grade 8.8 and above are made of low carbon alloy steel or medium carbon steel and heat-treated (quenched, tempered), which are generally called high strength bolts, and the others are generally called ordinary bolts. The bolt performance grade label is composed of two parts, which respectively represent the nominal tensile strength value and the buckling ratio of the bolt material.

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Yongnian Hongji
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Product detail pictures:

factory customized Steel Hexagonal Flange Bolt - ASME B18.3 Hex Socket Cap Head Screw ASTM A574 F837 – Hongji detail pictures

factory customized Steel Hexagonal Flange Bolt - ASME B18.3 Hex Socket Cap Head Screw ASTM A574 F837 – Hongji detail pictures

factory customized Steel Hexagonal Flange Bolt - ASME B18.3 Hex Socket Cap Head Screw ASTM A574 F837 – Hongji detail pictures

factory customized Steel Hexagonal Flange Bolt - ASME B18.3 Hex Socket Cap Head Screw ASTM A574 F837 – Hongji detail pictures

factory customized Steel Hexagonal Flange Bolt - ASME B18.3 Hex Socket Cap Head Screw ASTM A574 F837 – Hongji detail pictures

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With a positive and progressive attitude to customer's curiosity, our organization repeatedly improves our products top quality to meet the wants of consumers and further focuses on safety, reliability, environmental necessities, and innovation of factory customized Steel Hexagonal Flange Bolt - ASME B18.3 Hex Socket Cap Head Screw ASTM A574 F837 – Hongji , The product will supply to all over the world, such as: Lyon, Rome, Riyadh, With a team of experienced and knowledgeable personnel, our market covers South America, the USA, the Mid East, and North Africa. Many customers have become our friends after good cooperation with us. If you have the requirement for any of our products, please contact us now. We are looking forward to hearing from you soon.
    • Company director has very rich management experience and strict attitude, sales staff are warm and cheerful, technical staff are professional and responsible,so we have no worry about product,a nice manufacturer.
    5 Stars By Rebecca from Moldova - 2018.12.25 12:43
    We are long-term partners, there is no disappointment every time, we hope to maintain this friendship later!
    5 Stars By Jamie from Kuala Lumpur - 2018.09.29 17:23
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