# Proto

**Manufacturer:** Proto  
**MPN:** `J5331M`

The Proto J5331M 1/2-Inch Drive Deep Socket is a 31mm, 12 point socket designed for high tensile strength fasteners used in military and commercial aircraft. It features a 1-39/64-inch nut end outside diameter and a precise 31mm size. The socket is designed for use with 1/2-inch drive metric deep sockets.

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Proto |
| Manufacturer name | Proto |
| Manufacturer | Proto, Stanley Proto |
| DimensionUnit | inch |
| GraingerSku | 429P94 |
| Extra Product Name | Proto |
| UPC | 662679182403, 94701373426 |
| UnitOfMeasure | EA |
| Weight | 1, 0.73, 0.9 |
| WeightUnit | lbs |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | US |
| height | 3.2 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 1.5 |
| moq | 1 |
| MPN | J5331M |
| multiple | 1 |
| qtyInStock | 16 |
| qtyInStockOverride | -2 |
| SKU | G5103688 |
| tierMinQty1 | 1 |
| tierPrice1 | 21.84 |
| url | https://www.zoro.com/proto-12-in-drive-31mm-triple-square-metric-socket-12-points-j5331m/i/G5103688/ |
| width | 1.5 |
| EAN | 662679182403 |
| Part Number | J5331M |
| Model | J5331M |
| Product Group | Home Improvement |
| Drive Size | 1/2 in |
| Socket Type | Deep |
| SAE or Metric | Metric |
| Number of Points | 12 |
| Overall Length | 3 1/4 in |
| Material | Alloy Steel, Blend |
| Size | 31mm, One Size |
| Finish | Chrome |
| Output Type | Triple Square |
| Drive Type | Hand |
| Socket Sizes | 31mm |
| Item | Deep Socket |
| Standards | ASME B107.110-2012, SAE AS955 |
| Socket Depth | Deep |
| Tether Capable | Not Tether Capable |
| Impact Rated | No |
| Measurement Type | Metric |
| Tether Style | Not Tether Capable |
| Socket Shape | 12-Point |
| Socket Size | 31 mm |
| Tether Ready | No |
| Product Type | Socket |
| Country of Origin (subject to change) | United States |
| ASIN | B0002FUH1A |
| AdultProduct | False |
| Amount | 34.16, 38.40 |
| Asin | B0002FUH1A |
| Autographed | False |
| Batteries_required | False |
| Binding | Tools & Home Improvement |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G5103688 | 21.84 | 1 | 16 | 1 |
| ToolUp.com | PROTO J5331M | 25.38 | 1 | None | 1 |
| Applied Industrial | 105861918 |  |  | None | 1 |
| bscsource.com | J5331M |  |  | None | 1 |
| National Supply Network | B943156 |  |  | None | 1 |
| Grainger | 429P94 |  |  | None | 1 |
| Guardian | 04591798 | 35.98 | 1 | None | 1 |
| motionindustries.com | 01167593 | 34.16 | 1 | None | 1 |
| kscdirect.com | BLA J5331M |  |  | None | 1 |
| stellarindustrial.com | PROTO 5331M |  |  | None | 1 |
| directools.com | J5331M | 19.65 | 1 | None | 1 |
| Zoro | G1385596 | 20.25 | 1 | None | 1 |
| Turner Supply | 267918240 |  |  | None | 1 |
| jensentools.com | 414-730 | 40.32 | 1 | None | 1 |
| autotoolworld.com | POJ5331M | 25.03 | 1 | None | 1 |
| grovesindustrial.com | PRO 5331M | 25.02 | 1 | None | 1 |
| toolshackweb.com | PRO5331M | 25.02 | 1 | None | 1 |
| National Supply Network | 39956297 | 32.13 | 1 | None | 1 |
| imsbolt.com | J5331M | 40.32 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/203000000/203183000/part_--J5331M---Proto--c69fa62c63.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp