# Jumbo Washer, Flat Washer Type Oversized, Dimensional Standards AMPG 2001 FL.05, Material Steel, Material Grade/Class Grade 2, Finish Black Oxide, For Screw Size 2 1/2 in, Inside Diameter 2.625 in, Outside Diameter 4 1/2 in, Maximum Thickness 0.312 in, System of Measurement Inch, Minimum Thickness 0.312 in, Color Black, Inside Diameter Tolerance +/-0.010 in, Material Quality Standards ASTM A108, Outside Diameter Tolerance +/-0.010 in, Pack Size Small Pack, Rockwell Hardness C40

**Manufacturer:** Zoro Select  
**MPN:** `Z9258`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Zoro Select |
| Manufacturer name | Zoro Select |
| Manufacturer | Zoro Select |
| CategoryId | 4958 |
| CategoryIdL1 | 9 |
| CategoryIdL2 | 4385 |
| CategoryIdL3 | 15199 |
| CategoryIdL4 | 4958 |
| CategoryL1 | Fasteners |
| CategoryL2 | Washers |
| CategoryL3 | General Washers |
| CategoryL4 | Flat Washers |
| DimensionUnit | inch |
| GTIN | None |
| GraingerSku | 5RY60 |
| UPC | None |
| UnitOfMeasure | EA |
| Weight | 0.93 |
| WeightUnit | lbs |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| color | Black |
| countryOfOrigin | US |
| height | 0.4 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 6 |
| moq | 1 |
| MPN | Z9258 |
| multiple | 1 |
| qtyInStock | 0 |
| qtyInStockOverride | Drop Ship |
| SKU | G2500854 |
| tierMinQty1 | 1 |
| tierPrice1 | 55.05 |
| url | https://www.zoro.com/zoro-select-flat-washer-fits-bolt-size-2-12-in-steel-black-oxide-finish-z9258/i/G2500854/ |
| width | 4.5 |
| Fits Bolt Sizes | 2-1/2 in |
| Washer Outside Dia | 4 1/2 in |
| Washer Inside Dia | 2 5/8 in |
| Inside Dia | 2-5/8" |
| Outside Diameter | 4 1/2 in |
| Inside Diameter | 2.625 in |
| Dimensional Standards | AMPG 2001 FL.05 |
| Inside Diameter Tolerance | +/-0.010 in |
| For Screw Size | 2 1/2 in |
| Outside Diameter Tolerance | +/-0.010 in |
| Item | Flat Washer |
| Material | Steel |
| Finish | Black Oxide |
| Thickness | 5/16 in |
| Washer Standards | N/A |
| System of Measurement | Inch |
| Application | Load Distributing |
| Rockwell Hardness | C40 |
| Thickness Tolerance | +0.020/-0.010 in |
| Flat Washer Type | Jumbo Washer |
| Type | Oversized |
| Color | Black |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G2500854 | 55.05 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/206000000/206240000/part_--Z9258---ZoroSelect--0ec36d591f.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp