# Carriage Bolt,5/16-18x2 1/2L,PK100

**Manufacturer:** Zoro Select  
**MPN:** `U08300.031.0250`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Zoro Select |
| Manufacturer name | Zoro Select |
| Manufacturer | Zoro Select |
| CategoryId | 4924 |
| DimensionUnit | inch |
| GraingerSku | 21A892 |
| Extra Product Name | Carriage Bolt,5/16-18x2 1/2L,PK100 |
| UPC | None |
| UnitOfMeasure | PK |
| Weight | 5.62 |
| WeightUnit | lbs |
| atoms | 100 |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | ZZ |
| height | 3.3 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 11 |
| moq | 1 |
| MPN | U08300.031.0250 |
| multiple | 1 |
| qtyInStock | 32 |
| qtyInStockOverride | -2 |
| SKU | G4457686 |
| tierMinQty1 | 1 |
| tierPrice1 | 16.15 |
| url | https://www.zoro.com/zoro-select-carriage-bolt-516-18x2-12l-pk100-u083000310250/i/G4457686/ |
| width | 8 |
| Thread Size | 5/16"-18 |
| Fastener Length | 2 1/2 in |
| Neck Height | 11/64 in |
| Square Width | 0.324 in |
| Head Height | 11/64 in |
| Square Height | 0.187 in |
| Drill Size | 21/64 in |
| Dia /Thread Size | 5/16"-18 |
| Length | 2-1/2" |
| Head Dia | 0.719 in |
| Minimum Thread Length | 2 1/2 in |
| Maximum Head Diameter | 23/32 in |
| Minimum Neck Width | 5/16 in |
| Minimum Neck Height | 5/32 in |
| Maximum Neck Height | 3/16 in |
| Maximum Neck Width | 21/64 in |
| Maximum Head Height | 11/64 in |
| Neck Width | 5/16 in |
| Head Width | 45/64 in |
| Minimum Head Height | 5/32 in |
| Screw Size | 5/16"-18 |
| Pack Size | Small Pack |
| Dimensional Standards | ASME B18.5 |
| Minimum Head Diameter | 11/16 in |
| Overall Length | 2 1/2 in |
| Item | Carriage Bolt |
| Material | Steel |
| Material Grade/Class | Grade 2 |
| Finish | Plain |
| Thread Type | Coarse |
| Thread Style | Partially Threaded |
| Neck Type | Square |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G4457686 | 16.15 | 1 | 32 | 1 |

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Structured data: `/python/html6/product/500/214000000/214425500/part_--U083000310250---ZoroSelect--9136109c2e.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp