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| Categories | Steel Hex Bolt |
|---|---|
| Brand Name: | QBH |
| Model Number: | EN15048 |
| Certification: | ISO9001 |
| Place of Origin: | CHINA |
| MOQ: | 900kg |
| Price: | Negotiation |
| Payment Terms: | L/C, T/T |
| Supply Ability: | 500TON/MONTH |
| Delivery Time: | 30DAYS |
| Packaging Details: | 25KG/CTN,36CTN/PALLET or small packing |
| Standard: | EN15048 |
| Material: | Carbon Steel |
| Finish: | ZP YZP HDG BLACK |
| Grade: | 8.8 10.9 |
| Advantage: | we can manufacture according to client design,OEM / ODM / customized service provided |
| Oem: | yes,welcome |
| Company Info. |
| Jiaxing City Qunbang Hardware Co., Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
EN 15048 of a hexagon head bolt with a half-thread (shank) and a corresponding hexagon nut, manufactured from carbon steel property class 8.8. As a controlled "SB" (Structural Bolting) component, it features specific traceability markings on the head and is intended for static shear load applications where preloading is not required .
| STYLE | BS En15048-1 Sb Half Thread Hex Head Bolt |
| STANDARD | En15048 |
| Brand | QBH |
| SIZE | M4-M64 |
| CLASS(Carbon steel) | 8.8,10.9,12.9(BOLTS) 8,10,12(NUTS) |
| Coating(Carbon steel) | black, zinc, HDG, Heat treatment, Dacromet, GEOMET |
| MATERIAL | Carbon steel |
| PACKING | bulk/ boxes in cartons, bulk in polybags/ buckets, etc. |
| PALLET | solid wood pallet, plywood pallet, ton box/bag, etc. |
Q: What are the specific dimensional and mechanical standards for this half-thread bolt?
The bolt conforms to ISO 4014 (partial thread) and the nut to ISO 4032 . Property class is 8.8U , with "U" indicating 6az thread tolerance before hot-dip galvanizing to ensure final fit after coating.
Q: Why specify a half-thread design for non-preloaded connections?
The unthreaded shank provides a larger cross-sectional area through the joint's shear planes. This results in higher shear resistance and stiffness compared to the threaded portion, optimizing load capacity for static shear applications.
Q: What certification and marking are required for compliance?
The bolt head must be marked with "SB" , property class 8.8 , and a batch traceability code . The assembly must bear the CE mark under hEN 15048-1 and be supplied with a batch-specific 3.1 inspection certificate (EN 10204). Washers, if required, are ordered separately to ISO 7089





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