This M28 x 100 mm hexagon head bolt is manufactured to GBT1228-91 and supplied with a galvanized TZN corrosion-resistant finish. Designed as an OEM mining machinery fastener, the Grade 8.8 steel bolt provides high tensile strength for structural assemblies, equipment frames, conveyor systems, crusher components, and other heavy-duty industrial connections.
| Attribute | Details |
|---|---|
| Product Type | Hexagon Head Bolt |
| Part Number | GBT1228-91 |
| Manufacturer Drawing | NXZS25-00104 |
| Position | 25 |
| Thread Size | M28 |
| Length | 100 mm |
| Property Class | Grade 8.8 |
| Surface Treatment | TZN Galvanized |
| Material | High-Strength Carbon Steel |
| Drive Type | External Hex |
| Application Standard | GBT1228-91 |
| Brand | Huaibei Zhongfen Mine Machinery |
1 x M28 x 100 mm Grade 8.8 Galvanized TZN Hex Bolt. Nut and washer are not included unless separately ordered.