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Jiangsu Zhenya Special Screw Co.,Ltd is one of the leading China flange bolts manufacturers and suppliers, as a professional company, our productive factory is able to produce CE certification flange bolts at both high quality and low price. Welcome to buy discount and cheap, or wholesale products from us.
This bolt is identifiable by the ridge or surrounding the bolt head, this built-in washer under the head of the Bolt acts to distribute the clamping load over a greater area. A flange bolt is designed to provide the same holding power as a washer. Zinc plating, retards the corrosion rate in a normal atmosphere.
Hex Flange Screw, Serrated, Case Hardened, Zinc Plated , A2,A4
The information below lists the required dimensional, chemical and physical characteristics of the products in this purchase order. If the order received does not meet these requirements, it may result in a supplier corrective action request, which could jeopardize your status as an approved vendor. Unless otherwise specified, all referenced consensus standards must be adhered to in their entirety.
W |
H |
H₁ |
F |
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Nominal Size |
Width Across |
Head |
Wrench |
Flange Diameter |
|||||
Flats |
Thickness |
Height |
|||||||
Max. |
Min. |
Max. |
Min. |
Max. |
Min. |
||||
#4 |
0.112 |
0.188 |
0.181 |
0.079 |
… |
0.243 |
0.225 |
||
#6 |
0.138 |
0.250 |
0.244 |
0.157 |
0.133 |
0.350 |
0.314 |
||
#8 |
0.164 |
0.250 |
0.244 |
0.186 |
0.157 |
0.374 |
0.338 |
||
#10 |
0.190 |
0.312 |
0.304 |
0.210 |
0.185 |
0.454 |
0.424 |
||
#12 |
0.216 |
0.312 |
0.305 |
0.24 |
… |
0.52 |
0.398 |
||
1/4 |
0.250 |
0.375 |
0.367 |
0.28 |
0.17 |
0.56 |
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