# Proto j5521m Socket 3/4 Dr 21 mm 12 pt us | JensenTools

**Manufacturer:** Proto  
**MPN:** `J5521M`

The Proto J5521M is a 3/4 inch drive socket with a 21mm diameter and 12 point configuration. It features the TorquePlus design, which allows for quick and easy socket engagement and minimizes fastener rounding. The ball detent design enhances socket retention. This socket is ideal for use on stubborn or damaged fasteners and those made from soft materials.

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Proto |
| Manufacturer name | Proto |
| Manufacturer | Proto, Stanley Proto |
| KnownMan | Proto j5521m Socket 3/4 Dr 21 mm 12 pt us \| JensenTools |
| Extra Product Name | Proto j5521m Socket 3/4 Dr 21 mm 12 pt us \| JensenTools |
| jsonUrlData | 886911bb-8d69-4886-a811-ac4d00ceef16 |
| keywords | Proto j5521m Socket 3/4 Dr 21 mm 12 pt us 185-640 |
| moq | 1 |
| MPN | J5521M |
| multiple | 1 |
| qtyInStock | 0 |
| SKU | 185-640 |
| tierMinQty1 | 1 |
| tierPrice1 | 34.79 |
| UPC | 94714758685, 662679200015 |
| EAN | 94714758685, 662679200015 |
| Part Number | J5521M |
| Product Group | Home Improvement |
| ASIN | B0002FUD7S, B0080KEBZC |
| AdultProduct | False |
| Amount | 29.47, 33.13 |
| Asin | B0002FUD7S, B0080KEBZC |
| Autographed | False |
| Batteries_required | False |
| Binding | Misc., Tools & Home Improvement |
| Brand | Proto, Stanley-Proto |
| Bullet_point | Ball detent design, Proto 12 Point Sockets are ideal for use on stubborn or damaged fasteners and also on fasteners made from soft materials, The TorquePlus configuration employs a radius-corner desig |
| Case | 1 |
| Cat | Tools & Home Improvement |
| CatId | 228013 |
| CatTree | 2225084011, 228013, 328182011, 468240, 551238, 553350 |
| ClassificationId | 2225084011, 2225089011 |
| Color | Multi |
| Compatible_fastener_description | 0.75 inches |
| Currency | USD |
| CurrencyCode | USD |
| Department | Unisex-Adult |
| DisplayName | Individual Drive Sockets, Triple Square Drive |
| Drive_system | Spline |
| EANList | 662679200015, 94714758685 |
| Feature | Proto 12 Point Sockets are ideal for use on stubborn or damaged fasteners and also on fasteners made from soft materials |
| Height | 0.99999999898, 1, 1.0, 1000, 1008, 2.54, 325, 450, 49, 500, 75 |
| Identifier | 00662679200015, 0094714758685, 0662679200015, 094714758685, 662679200015 |
| IdentifierType | EAN, GTIN, UPC |
| IsDeadAsin | True |
| ItemClassification | BASE_PRODUCT |
| ItemName | Socket, 3/4 In Dr, 21mm, 12 Pt, Std, Socket, 3/4 in. Dr, 21mm Spline |
| Item_name | Socket, 3/4 In Dr, 21mm, 12 Pt, Std, Socket, 3/4 in. Dr, 21mm Spline |
| Item_package_quantity | 1 |
| Item_package_weight | 0.4000000000000001 |
| Item_type_keyword | sockets, triple-square-drive-sockets |
| Item_type_name | 3/4" Drive Socket 21 mm - 12 Point |
| Item_weight | 0.02, 0.4 |
| Keyword | IN., J5521M |
| Label | Proto, Stanley Proto |
| Length | 1, 1.0, 1.99999999796, 2, 5.08 |
| Link | https://m.media-amazon.com/images/I/31TkdwX7DQL._SL75_.jpg, https://m.media-amazon.com/images/I/31TkdwX7DQL.jpg, https://m.media-amazon.com/images/I/51ILKsYFmuL._SL75_.jpg, https://m.media-amazon.com/ |
| List_price | 33.13 |
| Man | Proto, Stanley Proto |
| Material | Blend |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| jensentools.com | 185-640 | 34.79 | 1 | None | 1 |
| ToolUp.com | PROTO J5521M | 21.91 | 1 | None | 1 |
| wylaco.com | J5521M |  |  | None | 1 |
| Raptor Supplies | AF2CJM |  |  | None | 1 |
| Zoro | G2770527 | 17.85 | 1 | None | 1 |
| Applied Industrial | 105859003 |  |  | None | 1 |
| bscsource.com | J5521M |  |  | None | 1 |
| Zoro | G3743765 | 25.57 | 1 | None | 1 |
| National Supply Network | B941787 |  |  | None | 1 |
| Guardian | 84968239 |  |  | None | 1 |
| Turner Supply | 267920001 |  |  | None | 1 |
| stellarindustrial.com | PROTO 5521M |  |  | None | 1 |
| directools.com | J5521M |  |  | None | 1 |
| grainger.ca | PRT5521M |  |  | None | 1 |
| grovesindustrial.com | PRO 5521M | 12.87 | 1 | 2 | 1 |
| National Supply Network | 39936067 | 23.65 | 1 | None | 1 |
| Grainger | 429T01 |  |  | None | 1 |
| imsbolt.com | J5521M | 34.79 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/20000000/20393500/part_--J5521M---Proto--4547729d90.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp