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Product Specifications:
| Item | Flat Washer |
| Dimensional Standards | ASME B18.22.1 |
| Finish | Plain |
| Fits Bolt Sizes | 5/16" |
| Flat Washer Type | Standard |
| For Screw Size | 5/16" |
| Grade | Grade 316 |
| Inside Dia. | 11/32" |
| Inside Diameter | 0.344" |
| 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 | 0.063" |
| Minimum Temperature | -58°F |
| Minimum Thickness | 0.034" |
| Outside Dia. | 11/16" |
| Outside Diameter Tolerance | -0.007" to +0.015" |
| Reach Compliant | Yes |
| Removable | Yes |
| Resistance Properties | Corrosion Resistant |
| Rohs Compliant | Yes |
| System Of Measurement | Imperial |
| Tensile Strength | Not Applicable |
| Thickness | 0.047" |
| Thickness Tolerance | +0.016", -0.013" |
| Washer Type | Standard Washer |
| Washer Type | Flat Washer |
Shipping Info:
| Ship weight (kg) | 0.11 |
| Ship height (cm) | 1.52 |
| Ship length (cm) | 7.62 |
| Ship width (cm) | 6.6 |
Product Variants
| Product | Model | Fits Bolt Sizes | Inside Dia. | Outside Dia. | Thickness | Thickness Tolerance | Tensile Strength | Resistance Properties | Inside Dia. Tolerance | Pkg. Qty. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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U55410.019.0002 | #10 | 7/32" | 1/2" | 2/41" | +0.016", -0.013" | Not Applicable | Corrosion Resistant | - | 50 | €3.86 | |
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U55420.150.0001 | 1 1/2" | 1 5/8" | 3 1/2" | 0.156" | - | - | - | - | 5 | €54.72 | |
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M55420.020.0001 | M2 | 2.2 mm | 5 mm | 0.3 mm | - | - | - | - | 50 | €3.01 | |
![]() |
M55420.025.0001 | M2.5 | 2.7 mm | 6 mm | 0.5 mm | - | - | - | - | 50 | €2.47 | |
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M55420.030.0001 | M3 | 3.2 mm | 7 mm | 0.5 mm | - | - | - | - | 50 | €2.25 | |
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M55420.040.0001 | M4 | 4.3 mm | 9 mm | 0.8 mm | - | - | - | - | 50 | €2.97 | |
![]() |
M55420.050.0001 | M5 | 5.3 mm | 10 mm | 1 mm | - | - | - | - | 50 | €3.04 |
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Contact us
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We're available Monday through Friday, from 07:30 until 17:00.
GRAINGER U55410.031.0001 Flat Washer, 5/16 In Fits Bolt Size, Std, 11/32 In I.D.
€6.89 /pack







