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Product Specifications:
| Item | Flat Washer |
| Dimensional Standards | Asme B18.21.1, Uss |
| Finish | Plain |
| Fits Bolt Sizes | 5/16" |
| Flat Washer Type | Uss |
| For Screw Size | 5/16" |
| Grade | Grade 316 |
| Inside Dia. | 3/8" |
| Inside Diameter Tolerance | -0.005" to +0.015" |
| Made In North America | No |
| Material | Stainless Steel |
| Material Grade/class | 316 |
| Maximum Temperature | 302°F |
| Maximum Thickness | 0.104" |
| Minimum Temperature | -58°F |
| Minimum Thickness | 0.064" |
| Outside Dia. | 7/8" |
| Outside Diameter Tolerance | -0.007" to +0.030" |
| Reach Compliant | Yes |
| Removable | Yes |
| Resistance Properties | Corrosion Resistant |
| Rohs Compliant | Yes |
| System Of Measurement | Imperial |
| Tensile Strength | Not Applicable |
| Thickness | 0.083" |
| Thickness Tolerance | +0.021", -0.019" |
| Washer Type | USS Washer |
Shipping Info:
| Ship weight (kg) | 0.25 |
| Ship height (cm) | 1.27 |
| Ship length (cm) | 16.99 |
| Ship width (cm) | 16.38 |
| HS code | 7318220000 |
| Country of Origin | TW |
Product Variants
| Product | Model | Fits Bolt Sizes | Inside Dia. | Outside Dia. | Thickness | Thickness Tolerance | Hardness | Color | Tensile Strength | Pkg. Qty. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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U55420.112.0001 | 1 1/8" | 1 1/4" | 2 3/4" | 0.156" | -0.029" to +0.027" | Rockwell B80 | Silver | Not Applicable | 5 | €31.58 | |
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U55420.125.0001 | 1 1/4" | 1 3/8" | 3" | 0.156" | -0.029" to +0.027" | Rockwell B80 | Silver | Not Applicable | 5 | €34.49 | |
![]() |
U55420.025.0001 | 1/4" | 0.313" | 3/4" | 0.065" | +0.015", -0.014" | - | - | Not Applicable | 50 | €11.98 | |
![]() |
U55420.037.0001 | 3/8" | 7/16" | 1" | 0.083" | +0.021", -0.019" | - | - | Not Applicable | 50 | €26.07 | |
![]() |
U55420.043.0001 | 7/16" | 1/2" | 1 1/4" | 0.083" | +0.021", -0.019" | - | - | Not Applicable | 25 | €22.37 | |
![]() |
U55420.050.0001 | 1/2" | 0.563" | 1 3/8" | 0.109" | -0.023" to +0.023" | - | - | Not Applicable | 25 | €36.14 | |
![]() |
U55420.087.0001 | 7/8" | 15/16" | 2 1/4" | 0.156" | +0.027", -0.029" | - | - | Not Applicable | 5 | €25.45 |
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APPROVED VENDOR U55420.031.0001 Flat Washer, 5/16 In Fits Bolt Size, USS, 3/8 In I.D., 7/8 In O.D., Plain
€21.08 /pack







