# Countersunk Washer, Fits Bolt Size M4 Steel, Black Oxide Finish, 5 PK

**Manufacturer:** Zoro Select  
**MPN:** `Z9920`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Zoro Select |
| Manufacturer name | Zoro Select |
| Manufacturer | Zoro Select |
| CategoryId | 7110 |
| CategoryIdL1 | 9 |
| CategoryIdL2 | 4385 |
| CategoryIdL3 | 15199 |
| CategoryIdL4 | 7110 |
| CategoryL1 | Fasteners |
| CategoryL2 | Washers |
| CategoryL3 | General Washers |
| CategoryL4 | Countersunk Washers |
| DimensionUnit | inch |
| GraingerSku | 5TA48 |
| Extra Product Name | Countersunk Washer, Fits Bolt Size M4 Steel, Black Oxide Finish, 5 PK |
| UPC | None |
| UnitOfMeasure | PK |
| Weight | 0.05 |
| WeightUnit | lbs |
| atoms | 5 |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| color | Black |
| countryOfOrigin | US |
| height | 0.3 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 3 |
| moq | 1 |
| MPN | Z9920 |
| multiple | 1 |
| qtyInStock | 79 |
| qtyInStockOverride | -2 |
| SKU | G0589443 |
| tierMinQty1 | 1 |
| tierPrice1 | 7.13 |
| url | https://www.zoro.com/zoro-select-countersunk-washer-fits-bolt-size-m4-steel-black-oxide-finish-5-pk-z9920/i/G0589443/ |
| width | 0.6 |
| Fits Bolt Sizes | M4 |
| Outside Dia | 16 mm |
| Inside Dia | 4.3 mm |
| Overall Height | 3 mm |
| Outside Diameter | 16 mm |
| Pack Size | Small Pack |
| For Screw Size | M4 |
| Maximum Inside Diameter | 4.3 mm |
| Item | Countersunk Washer |
| Material | Steel |
| Finish | Black Oxide |
| Thickness | 3 mm |
| System of Measurement | Metric |
| Rockwell Hardness | 15N80 |
| Thickness Tolerance | +/-.25 mm |
| Package Quantity | 5 |
| Application | For Finished Appearance |
| Color | Black |
| Washer Material Grade | 12L14 Low Carbon |
| For Use With | Flat and Oval Head Screws |
| Industry Standards | AMPG 2002 FIN.31 |
| Finish Type | Black Oxide |
| Bolt Compatibility | Grade 2 |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G0589443 | 7.13 | 1 | 79 | 1 |

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Structured data: `/python/html6/product/500/184000000/184341000/part_--Z9920---ZoroSelect--c7f2d879ea.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp