# Hex Head Cap Screw, System of Measurement Inch, Basic Material Steel, Material Grade A307A, Fastener Finish Zinc Plated, Dia./Thread Size 5/16 In.-18, Fastener Length 5 1/2 in, Fastener Thread Direction Right Hand, Fastener Thread Type UNC (Coarse), Fastener Thread Style Fully Threaded, Fastener Industry Standards ASME B18.2.1, Head Type Hex, Head Height 7/32 in, Head Width 1/2 in, Package Quantity 25

**Manufacturer:** Zoro Select  
**MPN:** `U01209.031.0550`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Zoro Select |
| Manufacturer name | Zoro Select |
| Manufacturer | Zoro Select |
| CategoryId | 4945 |
| CategoryIdL1 | 9 |
| CategoryIdL2 | 4395 |
| CategoryIdL3 | 4945 |
| CategoryL1 | Fasteners |
| CategoryL2 | Screws & Bolts |
| CategoryL3 | Hex Head Cap Screws |
| DimensionUnit | inch |
| GTIN | None |
| GraingerSku | 41UC94 |
| UPC | None |
| UnitOfMeasure | PK |
| Weight | 1.25 |
| WeightUnit | lbs |
| cali_prop65_orglabel | True |
| cali_prop65_warnmsgscenario | 7 |
| cali_prop65_whtlabel | True |
| countryOfOrigin | ZZ |
| height | 1.1 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 5 |
| moq | 1 |
| MPN | U01209.031.0550 |
| multiple | 1 |
| qtyInStock | 1 |
| qtyInStockOverride | 1 |
| qtySource | qtyInStockOverride |
| SKU | G2518699 |
| tierMinQty1 | 1 |
| tierPrice1 | 5.99 |
| url | https://www.zoro.com/zoro-select-grade-a307-516-18-hex-head-cap-screw-zinc-plated-steel-5-12-in-l-25-pk-u012090310550/i/G2518699/ |
| width | 3.7 |
| Thread Size | 5/16"-18 |
| Fastener Length | 5-1/2 in |
| Head Width | 0.5 in |
| Head Height | 7/32 in |
| Thread Length | 5-1/2" |
| Minimum Thread Length | 5 1/2 in |
| Size | 5/16"-18 x 5-1/2" |
| Item | Hex Head Cap Screw |
| Material | Steel |
| Finish | Zinc Plated |
| Material Grade/Class | Grade A307 |
| Thread Style | Fully Threaded |
| Drive | External Hex |
| Standards | ASME B18.2.1 ASTM A307 |
| System of Measurement | Inch |
| Thread Direction | Right Hand |
| Tensile Strength | 105,000 to 120,000 psi |
| Rockwell Hardness | HRB69 |
| Thread Type | UNC |
| Proof Load | 33,000 psi |
| Hex Head Cap Screw Type | Hex Tap Bolt |
| Thread Pitch | Fully Threaded |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G2518699 | 5.99 | 1 | 1 | 1 |
| Grainger | 41UC94 |  |  | None | 1 |

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Structured data: `/python/html6/product/500/260000000/260399000/part_--U012090310550---ZoroSelect--f2a8ef3987.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp