# Zoro Select

**Manufacturer:** Zoro Select  
**MPN:** `Z8778-188`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Zoro Select |
| Manufacturer name | Zoro Select |
| Manufacturer | Zoro Select |
| DimensionUnit | inch |
| GraingerSku | 420R42 |
| Extra Product Name | Zoro Select |
| UPC | None |
| UnitOfMeasure | EA |
| Weight | 1.6 |
| WeightUnit | lbs |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | US |
| extendedLead | 11 |
| extendedQty | -2 |
| height | 0.63 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 3 |
| moq | 1 |
| MPN | Z8778-188 |
| multiple | 1 |
| qtyInStock | 0 |
| qtyInStockOverride | Drop Ship |
| SKU | G2107977 |
| tierMinQty1 | 1 |
| tierPrice1 | 16.34 |
| url | https://www.zoro.com/zoro-select-square-washer-fits-bolt-size-58-in-18-8-stainless-steel-plain-finish-z8778-188/i/G2107977/ |
| width | 3 |
| Item | Square Washer |
| Material | 18-8 Stainless Steel |
| Finish | Plain |
| Fits Bolt Sizes | 5/8 in |
| Outside Dia | 3 in |
| Thickness | 1/2 in |
| Package Quantity | 1 |
| Inside Dia | .688 in |
| System of Measurement | Inch |
| Thickness Tolerance | +/-0.030 in |
| Rockwell Hardness | B83 |
| Inside Diameter | 0.688 in |
| Material Grade/Class | Grade 2 |
| Pack Size | Small Pack |
| Minimum Thickness | 0.485 in |
| Tensile Strength | 90,000 psi |
| Type | Square |
| Finish Type | Plain |
| For Screw Size | 5/8 in |
| Material Type | Stainless Steel |
| Square Width | 3 in |
| Maximum Thickness | 0.515 in |
| Dimensional Standards | ASTM A582 |
| Country of Origin (subject to change) | United States |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G2107977 | 16.34 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/72000000/72238500/part_--Z8778188---ZoroSelect--ea2e8d6a7c.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp