# Carriage Bolt - Square Neck Round Head - Zinc Plated Low Carbon Steel - 1/4"-20 Thread - 5-1/2" Long - Pack of 50

**Manufacturer:** USA Sealing  
**MPN:** `ZBOLT-539`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | USA Sealing |
| Manufacturer name | USA Sealing |
| Manufacturer | USA Sealing |
| DimensionUnit | inch |
| Extra Product Name | Carriage Bolt - Square Neck Round Head - Zinc Plated Low Carbon Steel - 1/4"-20 Thread - 5-1/2" Long - Pack of 50 |
| ShipDate | 2023-10-24 |
| height | 0.2955 |
| height_Attrib | Head Height |
| length | 5.5 |
| length_Attrib | Length |
| moq | 1 |
| MPN | ZBOLT-539 |
| multiple | 1 |
| qtyInStock | -2 |
| qtySource | fixShipDate |
| SKU | ZBOLT-539 |
| tierMinQty1 | 1 |
| tierPrice1 | 40.32 |
| width | 0.579 |
| width_Attrib | Head Width |
| Body Width | 0.249" |
| Body Width Tolerance | (-0.012" to +0.012") |
| Bolt Subtype | Standard |
| Bolt Type | Carriage |
| Brand Name | USA Sealing |
| Brand Part Number | ZBOLT-539 |
| Finish | Zinc Plated |
| Grade | Low Carbon |
| Head Height | 0.2955" |
| Head Height Tolerance | (-0.018" to +0.018") |
| Head Subytype | Standard |
| Head Type | Round |
| Head Width | 0.579" |
| Head Width Tolerance | (-0.016" to +0.016") |
| Length | 5-1/2" |
| Material | Steel |
| Neck Type | Square |
| Pack Quantity | 50 |
| Specifications Met | ASME B18.5 |
| System of Measurement | Inch |
| Tensile Strength | 60,000 psi |
| Thread Direction | Right |
| Thread Size | 1/4"-20 |
| Thread Spacing | Coarse |
| Thread Type | UNC |
| Threading | Fully Threaded |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| fixsupply.com | ZBOLT-539 | 40.32 | 1 | None | 1 |
| Zoro | G809955423 | 35.75 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/49000000/49225500/part_--ZBOLT539---USASealing--1529c6bf74.json`  
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MCP server: https://www.dataalchemy.com/mcp