# Flange Bolt - Flanged Indented Hex Head - Black Phosphate Grade 8 Steel - 5/16"-18 Thread - 5/8" Long - Pack of 25

**Manufacturer:** USA Sealing  
**MPN:** `ZBOLT-1288`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | USA Sealing |
| Manufacturer name | USA Sealing |
| Manufacturer | USA Sealing |
| DimensionUnit | inch |
| Extra Product Name | Flange Bolt - Flanged Indented Hex Head - Black Phosphate Grade 8 Steel - 5/16"-18 Thread - 5/8" Long - Pack of 25 |
| ShipDate | 2023-10-20 |
| height | 0.32 |
| height_Attrib | Head Height |
| length | 0.625 |
| length_Attrib | Length |
| moq | 1 |
| MPN | ZBOLT-1288 |
| multiple | 1 |
| qtyInStock | -2 |
| qtySource | fixShipDate |
| SKU | ZBOLT-1288 |
| tierMinQty1 | 1 |
| tierPrice1 | 29.85 |
| width | 0.68 |
| width_Attrib | Flange Width |
| Body Width | 0.310" |
| Body Width Tolerance | (-0.003" to +0.003") |
| Bolt Subtype | Standard |
| Bolt Type | Flange |
| Brand Name | USA Sealing |
| Brand Part Number | ZBOLT-1288 |
| Drive Style | External hex |
| Finish | Black Phosphate |
| Flange Thickness | 0.050" |
| Flange Width | 0.680" |
| Grade | Grade 8 |
| Head Height | 0.320" |
| Head Subytype | Flanged |
| Head Type | Indented Hex |
| Head Width | 1/2" |
| Length | 5/8" |
| Material | Steel |
| Min Thread Length | 0.875" |
| Pack Quantity | 25 |
| Specifications Met | IFI-111, SAE J429 |
| System of Measurement | Inch |
| Tensile Strength | 150,000 psi |
| Thread Direction | Right |
| Thread Size | 5/16"-18 |
| Thread Spacing | Coarse |
| Thread Type | UNC |
| Threading | Partially Threaded |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| fixsupply.com | ZBOLT-1288 | 29.85 | 1 | None | 1 |
| Zoro | G909955712 | 26.49 | 1 | None | 1 |

---
Structured data: `/python/html6/product/500/116500000/116688500/part_--ZBOLT1288---USASealing--a12b808f3e.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp