# Square Washer, Type Square, Dimensional Standards ASTM A582, Material Stainless Steel, Material Grade/Class Grade 2, Finish Plain, For Screw Size 3/4 in, Inside Diameter 0.813 in, Square Width 4 in, Maximum Thickness 0.515 in, System of Measurement Inch, Minimum Thickness 0.485 in, Pack Size Small Pack, Rockwell Hardness B83, Tensile Strength 90,000 psi, Thickness Tolerance +/-0.031 in

**Manufacturer:** Zoro Select  
**MPN:** `Z8779-188`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Zoro Select |
| Manufacturer name | Zoro Select |
| Manufacturer | Zoro Select |
| CategoryId | 10695 |
| CategoryIdL1 | 9 |
| CategoryIdL2 | 4385 |
| CategoryIdL3 | 15199 |
| CategoryIdL4 | 10695 |
| CategoryL1 | Fasteners |
| CategoryL2 | Washers |
| CategoryL3 | General Washers |
| CategoryL4 | Square Washers |
| DimensionUnit | inch |
| GTIN | None |
| GraingerSku | 420R43 |
| UPC | None |
| UnitOfMeasure | EA |
| Weight | 2.8 |
| WeightUnit | lbs |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | US |
| height | 0.63 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 4 |
| moq | 1 |
| MPN | Z8779-188 |
| multiple | 1 |
| qtyInStock | 0 |
| qtyInStockOverride | Drop Ship |
| SKU | G2108038 |
| tierMinQty1 | 1 |
| tierPrice1 | 17.99 |
| url | https://www.zoro.com/zoro-select-square-washer-fits-bolt-size-34-in-18-8-stainless-steel-plain-finish-z8779-188/i/G2108038/ |
| width | 4 |
| Fits Bolt Sizes | 3/4 in |
| Outside Dia | 4 in |
| Inside Dia | .812 in |
| Inside Diameter | 0.813 in |
| For Screw Size | 3/4 in |
| Square Width | 4 in |
| Dimensional Standards | ASTM A582 |
| Item | Square Washer |
| Material | 18-8 Stainless Steel |
| Finish | Plain |
| Thickness | 1/2 in |
| System of Measurement | Inch |
| Thickness Tolerance | +/-0.030 in |
| Rockwell Hardness | B83 |
| Minimum Thickness | 0.485 in |
| Maximum Thickness | 0.515 in |
| Type | Square |
| Material Type | Stainless Steel |
| Material Grade/Class | Not Graded |
| Finish Type | Plain |
| Tensile Strength | 90,000 psi |
| Style | Square |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G2108038 | 17.99 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/230000000/230367500/part_--Z8779188---ZoroSelect--dcd0c9df1a.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp