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Standard Flat Washers
Item No.：
D-002
Category：
Summary
We passed the ISO9001:2000 quality management system certification in 2019, and organized and trained an elite team of professional production, inspection, sales and distribution.
Tel: +86-574-86520006
E-mail: info@nbasme.com，sales@nbasme.com
Description
Standard flat washers are covered under ASTM F844 specification. Flat washers are generally thin pieces of various shapes used to reduce friction, prevent leaks, isolate, prevent loosening, or distribute pressure. Limited by the material and process of threaded fasteners, the supporting surface of bolts and other fasteners is not large, so in order to reduce the compressive stress on the bearing surface and protect the surface of the connected parts, washers are used. The flat washer is mainly used to reduce the pressure. When some parts are tightened with a large axial force, the washer is easy to be pressed into a dish shape. At this time, it can be solved by changing the material and increasing the hardness.
Dimensions
|
Bolt Size |
d |
D |
T |
|||
|
Inside Diameter |
Outside Diameter |
Thickness |
||||
|
Narrow |
wide |
Narrow |
wide |
Narrow |
wide |
|
|
1/2 |
0.531 |
0.562 |
1.062 |
1.375 |
0.095 |
0.109 |
|
9/16 |
0.594 |
0.625 |
1.156 |
1.469 |
0.095 |
0.109 |
|
5/8 |
0.625 |
0.688 |
1.312 |
1.750 |
0.095 |
0.134 |
|
3/4 |
0.812 |
0.812 |
1.469 |
2.000 |
0.134 |
0.148 |
|
7/8 |
0.938 |
0.938 |
1.750 |
2.250 |
0.134 |
0.165 |
|
1 |
1.062 |
1.062 |
2.000 |
2.500 |
0.134 |
0.165 |
|
1-1/8 |
1.250 |
1.250 |
2.250 |
2.750 |
0.134 |
0.165 |
|
1-1/4 |
1.375 |
1.375 |
2.500 |
3.000 |
0.165 |
0.165 |
|
1-3/8 |
1.500 |
1.500 |
2.750 |
3.250 |
0.165 |
0.180 |
|
1-1/2 |
1.625 |
1.625 |
3.00 |
3.500 |
0.165 |
0.180 |
|
1-5/8 |
1.750 |
3.750 |
0.180 |
|||
|
1-3/4 |
1.875 |
4.000 |
0.180 |
|||
|
1-7/8 |
2.000 |
4.250 |
0.180 |
|||
|
2 |
2.125 |
4.500 |
0.180 |
|||
|
2-1/4 |
2.375 |
4.750 |
0.220 |
|||
|
2-1/2 |
2.625 |
5.000 |
0.238 |
|||
|
2-3/4 |
2.875 |
5.250 |
0.259 |
|||
|
3 |
3.125 |
5.500 |
0.284 |
|||
Dimensions per ASME B18.21.1 - 2009
About Us
Flat washers are mainly stamped out of iron plates, and their shape is generally a flat circle with a hole in the middle. Ningbo ASME Fasteners can provide ASTM F844, ASTM F436, ASTM A36 or A572 grade 50 washers.
Online Message
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SERVICE HOTLINE:
Address：No. 100, Tianshen Road, Tiangu Industrial Zone, Jiulonghu Town, Zhenhai District, Ningbo, Zhejiang, China.
M.T.：+86-18967865853
TEL：+86-574-86520006
E-mail：info@nbasme.com，sales@nbasme.com
+86-18967865853
+86-574-86520006
info@nbasme.com
sales@nbasme.com
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