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USS Washer/Plain Washer, 1/4" - 3", Black Oxide

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USS Washer/Plain Washer, 1/4" - 3", Black Oxide
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Features
Specifications
Name: USS Washer/Plain Washer
Material: S45C/40CR
Size: 1/4" - 3"
Finish: Plain/black/ZINC/HDG/Dacromet
Standard: USS
Hardness: HV 300/HRC35-45
Application: Construction, Bridges, Machinery And Automobile Manufacturing
High Light:

USS Plain Washers Black Oxide

,

Black Oxide zinc plated flat washer

,

zinc plated flat washer HV 300

Basic Infomation
Place of Origin: China
Brand Name: YNK
Certification: ISO9001;ISO14001;ISO45001;CE
Model Number: USS
Payment & Shipping Terms
Packaging Details: Pallet
Payment Terms: T/T
Supply Ability: 50T For 1 day
Product Description

Standard:USS

Description:

      USS washers, also known as plain washers, are commonly used in the United States and are specified by the Unified Screw Thread Standard (USS). They are used to distribute the load and provide a larger bearing surface when used with bolts or screws. The size range you mentioned, 1/4" to 3", refers to the nominal diameter of the bolt or screw they are designed to work with.

      When specified with a "Black Oxide" finish, USS washers have undergone a surface treatment process known as black oxide coating. Black oxide coating, also known as blackening, is a conversion coating that creates a thin layer of black oxide on the surface of the washer.

      The black oxide coating serves multiple purposes. First, it provides a degree of corrosion resistance, although its level of protection may not be as high as that of other coatings like hot-dip galvanizing or zinc plating. Second, the black oxide finish enhances the aesthetics of the washers, giving them a sleek black appearance. Lastly, the black oxide layer can improve the wear resistance and lubricity of the washers, facilitating smooth assembly and operation.

      USS washers with a black oxide finish are commonly used in various applications where both functionality and visual appeal are important. They find applications in industries such as automotive, machinery, and general manufacturing.

      Please note that while black oxide coating provides some corrosion resistance, it may not offer the same level of protection as other specialized coatings. If high levels of corrosion resistance are required, alternative coatings or finishes, such as hot-dip galvanizing or zinc plating, may be more suitable.

 

 

      

Material 45#/40CR
Size 1/4"-3"
Finish Plain/black/ZINC/HDG/Dacromet/Mechanical Galvanized
Hardness HV300/HRC35-45
Marking can be Customized
Application Constrution/Wind turbines/railway line
Packing Carton+ pallet; we can pack washers as your requirements
Terms FOB+shanghai/ningbo
Delivery time 30-70days

 

 

Size

Inner

diamater

(max)

Inner diamater

(min)

Outside diamater

(max)

Outside diamater

(min)

Thickness

(max)

Thickness

(min)

3/16"

14.66

14.15 6.73 6.22 1.65 0.91
1/4" 19.02 18.47 8.31 7.8 2.03 1.3
5/16" 22.99 22.05 9.91 9.4 2.64 1.63
3/8" 26.16 25.22 11.51 11 2.64 1.63
7/16" 32.51 31.57 13.08 12.57 2.64 1.63
1/2" 35.69 34.57 14.66 14.15 3.35 2.18
9/16" 38.07 37.13 16.25 15.75 3.35 2.18
5/8" 45.21 44.27 18.24 17.3 4.06 2.74
3/4" 51.56 50.62 21.39 20.45 4.5 3.1
7/8" 57.91 56.97 24.58 23.65 4.88 3.45
1" 64.26 63.32 27.74 26.8 4.88 3.45
1-1/8" 70.61 69.67 32.51 31.57 4.88 3.45
1-1/4" 76.96 76.02 35.69 34.75 4.88 3.45
1-3/8" 83.69 82.3 39.24 37.85 5.41 3.45
1-1/2" 90.04 88.65 42.42 41.02 5.41 3.45
1-5/8" 96.39 95 45.59 44.2 5.41 3.89
1-3/4” 102.74 101.35 48.77 47.37 5.41 3.89
1-7/8“ 109.09 107.7 51.94 50.55 5.41 3.89
2”

115.44

114.05 55.12 53.72 5.41 3.89
2-1/4“ 121.79 120.4 61.47 60.07 6.3 4.9
2-1/2” 128.14 126.75 67.82 66.42 7.11 5.33
2-3/4“ 135 133.1 74.68 72.77 7.87 5.79
3” 141.35 139.45 81.03 79.12 8.31 6.32

 

Products pictures for Flat washers

USS Washer/Plain Washer, 1/4" - 3", Black Oxide 0USS Washer/Plain Washer, 1/4" - 3", Black Oxide 1USS Washer/Plain Washer, 1/4" - 3", Black Oxide 2

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Tel : +86 15250117179
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