# Socket, Socket Size 21 mm, 6-Point, Alloy Steel, Chrome, Standard, Hand, Drive Size 3/8 in, Metric, Impact Rated No, Standards AS4984A, ASME B107.110-2012

**Manufacturer:** Proto  
**MPN:** `J5221MH`

The Proto J5221MH 3/8-Inch Drive Socket features a 6-point design, ideal for use on stubborn or damaged fasteners and those made from soft materials. The Torque Plus drive configuration allows for quick and easy socket engagement, while the internal design minimizes fastener rounding and helps extend fastener life. The socket measures 21mm in diameter and 31.2mm in length.

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Proto |
| Manufacturer name | Proto |
| Manufacturer | Proto, PROTO, Stanley Proto |
| CategoryId | 5307 |
| CategoryIdL1 | 10 |
| CategoryIdL2 | 4423 |
| CategoryIdL3 | 5307 |
| CategoryL1 | Tools & Machining |
| CategoryL2 | Hand Tools |
| CategoryL3 | Sockets & Ratchets |
| CategoryL4 | Sockets |
| DimensionUnit | inch |
| GTIN | 662679163150 |
| GraingerSku | 429P20 |
| UPC | 662679163150, 94714757909 |
| UnitOfMeasure | EA |
| Weight | 0.18, 0.01, 0.20000000000000004 |
| WeightUnit | lbs |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | US |
| height | 1.1 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 1.3 |
| moq | 1 |
| MPN | J5221MH |
| multiple | 1 |
| qtyInStock | 35 |
| qtyInStockOverride | -2 |
| SKU | G2769328 |
| snippet | Socket, Socket Size 21 mm, 6-Point, Alloy Steel, Chrome, Standard, Hand, Drive Size 3/8 in, Metric, Impact Rated No, Standards AS4984A, ASME B107.110-2012 |
| tierMinQty1 | 1 |
| tierPrice1 | 6.59 |
| url | https://www.zoro.com/proto-38-in-drive-21mm-hex-metric-socket-6-points-j5221mh/i/G2769328/ |
| width | 1.1 |
| EAN | 662679163150, 94714757909 |
| Part Number | J5221MH |
| Model | J5221MH |
| Product Group | Home Improvement |
| Drive Size | 3/8 in |
| Overall Length | 32.5 mm |
| Size | 21mm |
| Socket Depth | Standard |
| Socket Sizes | 21mm |
| Socket Size | 21 mm |
| SAE or Metric | Metric |
| Number of Points | 6 |
| Material | Alloy Steel, Blend |
| Finish | Chrome |
| Output Type | Hex |
| Item | Socket |
| Tether Capable | Not Tether Capable |
| Drive Type | Hand |
| Category Type | Hex Socket |
| Standards | AS4984A, ASME B107.110-2012 |
| Measurement Type | Metric |
| Impact Rated | No |
| Tether Style | Not Tether Capable |
| Tether Ready | No |
| Socket Shape | 6-Point |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G2769328 | 6.59 | 1 | 35 | 1 |
| Grainger | 6RCG6 |  |  | None | 1 |
| Grainger | 429P20 |  |  | None | 1 |
| Global Industrial | WBB941518 |  |  | None | 1 |
| ToolUp.com | PROTO J5221MH | 7.55 | 1 | None | 1 |
| wylaco.com | J5221MH |  |  | None | 1 |
| motionindustries.com | 01166908 | 71.25 | 1 | None | 1 |
| Applied Industrial | 105856357 |  |  | None | 1 |
| Amazon | B0080KLVX2 |  |  | None | 1 |
| bscsource.com | J5221MH |  |  | None | 1 |
| grainger.ca | PRT5221MH |  |  | None | 1 |
| Guardian | 04067039 |  |  | None | 1 |
| Turner Supply | 267916315 |  |  | None | 1 |
| stellarindustrial.com | PROTO 5221MH |  |  | None | 1 |
| directools.com | J5221MH |  |  | None | 1 |
| Circle C Supply | PTO03792 | 6.0 | 1 | None | 1 |
| jensentools.com | 486-366 | 11.95 | 1 | None | 1 |
| National Supply Network | 39934633 | 9.1 | 1 | None | 1 |
| imsbolt.com | J5221MH | 11.95 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/65000000/65326500/part_--J5221MH---Proto--3cf5b21beb.json`  
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MCP server: https://www.dataalchemy.com/mcp