19YRS
STAMPINGMASTERS ENTERPRISE CO., LTD.
886-3-4527557
886-3-4511072
No.20, Xinbeiyuan Rd., Zhongli Dist., Taoyuan City 320, Taiwan
www.tohatsu.com.tw

Products

Flat Washers
Washer (Material: Steel / Stainless Steel)
5501 5503

Washers, also known as washers, are parts that are usually used to pad between the connector and the nut.
The main purpose is as a spacer to protect the surface of the connected parts from being scratched by the nut, to disperse the pressure of the nut on the connected parts, and to reduce the detachment caused by vibration.
Common materials: steel, stainless steel, copper, aluminum, iron, plastic, titanium
Main application industries: industry, mold, equipment...etc
Washers can be divided into three types
1. Flat washer
Function: Prevent the surface damage of the connector, increase the contact area and disperse the pressure.
2. Spring washer
Function: used to flexibly prevent loosening and vibration.
3. Anti-loose washers
Function: To prevent the loosening of the connector and prevent the rotation of the screw.

A gasket is a mechanical seal between two objects, usually used to prevent pressure, corrosion, and pipeline leakage between the two objects.
Since the machined surface cannot be perfect, the irregularities can be filled with spacers.
Main use: sealing of pipe flanges, valves, pumps, pressure vessels, etc. some professional equipment
The main application industries are petrochemical, refining, electric power, metallurgy, manufacturing and other industries

This product is made according to DIN6340

Specification

品號
Product No.
材質+處理
Material + Surface Treatment
內徑
Inner diameter
外徑
Outer diameter
厚度
Thickness
5501.031 鋼+鍍層(Coating) 3.2 7 0.5
5501.041 鋼+鍍層(Coating) 4.3 9 0.8
5501.051 鋼+鍍層(Coating) 5.3 10 1
5501.061 鋼+鍍層(Coating) 6.4 12 1.6
5501.081 鋼+鍍層(Coating) 8.4 16 1.6
5501.101 鋼+鍍層(Coating) 10.5 20 2
5501.121 鋼+鍍層(Coating) 13 24 2.5
5501.161 鋼+鍍層(Coating) 17 30 3
5501.201 鋼+鍍層(Coating) 21 37 3
5501.241 鋼+鍍層(Coating) 25 44 4
5501.301 鋼+鍍層(Coating) 31 56 4
5501.361 鋼+鍍層(Coating) 37 66 5
5501.421 鋼+鍍層(Coating) 43 90 4.5
5501.010 不銹鋼 1.1 3.2 0.3
5501.012 不銹鋼 1.2 3.8 0.3
5501.014 不銹鋼 1.4 3.8 0.3
5501.016 不銹鋼 1.7 4 0.3
5501.020 不銹鋼 2.2 5 0.3
5501.025 不銹鋼 2.7 6 0.5
5501.030 不銹鋼 3.2 7 0.5
5501.040 不銹鋼 4.3 9 0.8
5501.050 不銹鋼 5.3 10 1
5501.060 不銹鋼 6.4 12 1.6
5501.080 不銹鋼 8.4 16 1.6
5501.100 不銹鋼 10.5 20 2
5501.120 不銹鋼 13 24 2.5
5501.160 不銹鋼 17 30 3
5501.200 不銹鋼 21 37 3
5501.240 不銹鋼 25 44 4
5501.300 不銹鋼 31 56 4
5503.030 3 6 0.1
5503.040 4 8 0.1
5503.050 5 10 0.1
5503.060 6 12 0.1
5503.080 8 14 0.1
5503.100 10 16 0.1
5503.120 12 18 0.1
5503.140 14 20 0.1
5503.180 18 25 0.1
5503.200 20 28 0.1
5503.220 22 32 0.1
5503.250 25 35 0.1
5503.300 30 42 0.1
5503.350 35 45 0.1
5503.400 40 50 0.1

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