# O1 Tool Steel Rod, Material Tool Steel, Material Grade O1, Overall Length 36 in, Heat Treatable Yes, Heat Treatment Oil Hardened, Mechanical Finish Precision Ground, Outside Diameter 3/8 in, Outside Diameter Tolerance +/-0.0005 in, Yield Strength 55,000 psi, Fabrication Hot Rolled, Rockwell Hardness B100, Brinell Hardness 241, Tensile Strength 95,000 psi, Machinability 90 Percent, Length Tolerance +1/8 in/-0 in, Includes Material Certificate Yes

**Manufacturer:** Zoro Select  
**MPN:** `O1D386`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Zoro Select |
| Manufacturer name | Zoro Select |
| Manufacturer | Zoro Select |
| CategoryId | 7578 |
| CategoryIdL1 | 37 |
| CategoryIdL2 | 18890 |
| CategoryIdL3 | 7578 |
| CategoryL1 | Raw Materials |
| CategoryL2 | Alloy Steel |
| CategoryL3 | Alloy Steel Rods |
| DimensionUnit | inch |
| GTIN | None |
| GraingerSku | 33J310 |
| UPC | None |
| UnitOfMeasure | EA |
| Weight | 1.05 |
| WeightUnit | lbs |
| cali_prop65_message | WARNING: Cancer - www.P65Warnings.ca.gov |
| cali_prop65_orglabel | False |
| cali_prop65_warnmsgscenario | 5 |
| cali_prop65_whtlabel | True |
| countryOfOrigin | NL |
| height | 0.3 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 36.3 |
| moq | 1 |
| MPN | O1D386 |
| multiple | 1 |
| qtyInStock | 455 |
| qtyInStockOverride | -2 |
| SKU | G4535587 |
| tierMinQty1 | 1 |
| tierPrice1 | 17.89 |
| url | https://www.zoro.com/zoro-select-oil-hard-drill-rod-o1-38-0375-o1d386/i/G4535587/ |
| width | 0.3 |
| Fractional Size | 3/8 in |
| Length | 36 in |
| Dia Tolerance | +/-0.0005 in |
| Length Tolerance | +0.125 in/-0.000 in |
| Outside Diameter | 3/8 in |
| Overall Length | 36 in |
| Outside Diameter Tolerance | +/-0.0005 in |
| Grade | O1 |
| Material | Steel |
| Finish | 15 RMS Max |
| Hardness Scale | 241 BHN Max |
| Standards | UNS T31501, SAE J437, ASTM A-681-94, FEDERAL QQT-570 REV C |
| Decimal Equivalent | 0.375 in |
| Item | O1 Tool Steel Rod |
| Product Type | Oil Hard, Drill Rod |
| Machinability | 90 % |
| Appearance | 15 RMS Max |
| Heat Treatable | Yes |
| Brinell Hardness | 241 |
| System of Measurement | Inch |
| Material Grade | O1 |
| Rockwell Hardness | B100 |
| Fabrication | Hot Rolled |
| Shape | Rod |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G4535587 | 17.89 | 1 | 455 | 1 |

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