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Product Specifications:
| Item | Flat Washer |
| Dimensional Standards | ASME B18.22.1 |
| Finish | Plain |
| Fits Bolt Size | 1/2" |
| Flat Washer Type | Oversized |
| For Screw Size | 1/2" |
| Inside Dia. | 0.531" , 17/32" |
| Inside Dia. Tolerance | 0.526" to 0.546" |
| Made In North America | No |
| Material | Steel |
| Material Grade/class | Case Hardened |
| Max. Temp. | 350°C |
| Max. Thickness | 1/8" |
| Min. Temp. | -58°C |
| Min. Thickness | 1/8" |
| Outside Dia. | 1 1/8" |
| Outside Dia. Tolerance | 1.118" to 1.155" |
| Reach Compliant | Yes |
| Removable | Yes |
| Rohs Compliant | Yes |
| System Of Measurement | Imperial |
| Thickness | 1/8" |
| Thickness Tolerance | 0.104" to 0.151" |
| Washer Type | Oversized Washer |
Shipping Info:
| Ship weight (kg) | 0.52 |
| Ship height (cm) | 4.32 |
| Ship length (cm) | 16.51 |
| Ship width (cm) | 7.11 |
| HS code | 7318220000 |
| Country of Origin | TW |
Product Variants
| Product | Model | Fits Bolt Size | Thickness | Min. Thickness | Max. Thickness | For Screw Size | Material Grade/class | Thickness Tolerance | Inside Dia. Tolerance | Pkg. Qty. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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U38403.100.0001 | 1" | 0.156" | 0.188" | 0.188" | 1" | Case Hardened | 0.17" to 0.208" | 1.093" to 1.024" | 5 | €7.83 | |
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U38403.112.0001 | 1 1/8" | 0.156" | 0.219" | 0.219" | 1 1/8" | Case Hardened | 0.19" to 0.248" | 1.149" to 1.186" | 5 | €11.17 | |
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U38403.125.0001 | 1 1/4" | 0.281" | 0.281" | 0.281" | 1 1/4" | Case Hardened | 0.265" to 0.297" | 1.274" to 1.311" | 5 | €12.50 | |
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Z9285 | 1/4" | 0.14" | 0.13" | 0.15" | 1/4" | Grade 2 | -0.02" to +0.005" | -0.01" to +0.01" | 10 | €48.31 | |
![]() |
Z9286 | 5/16" | 0.14" | 0.13" | 0.15" | 5/16" | Grade 2 | -0.02" to +0.005" | -0.01" to +0.01" | 10 | €26.38 | |
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Z9287 | 3/8" | 0.14" | 0.13" | 0.15" | 3/8" | Grade 2 | -0.02" to +0.005" | -0.01" to +0.01" | 5 | €13.19 | |
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Z9289 | 1/2" | 0.156" | 0.146" | 0.166" | 1/2" | Grade 2 | -0.02" to +0.005" | -0.01" to +0.01" | 5 | €22.69 |
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APPROVED VENDOR U38403.050.0001 Flat Washer, 1/2 In Fits Bolt Size, Oversized, 17/32 In I.D., 1/8 In Thk.
€15.15 /pack







