Jiaxing City Qunbang Hardware Co., Ltd
| 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 |
| Brand Name | QBH |
| Model Number | EN15048 |
| Certification | ISO9001 |
| Place of Origin | CHINA |
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Product Specification
| 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 |
| Brand Name | QBH | Model Number | EN15048 |
| Certification | ISO9001 | Place of Origin | CHINA |
| High Light | BS En15048-1 hex head bolt ，half thread steel hex bolt ，SB hex head bolt with warranty | ||
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
Company Details
Business Type:
Manufacturer,Trading Company,Seller
Year Established:
2014
Total Annual:
3000-4500
Employee Number:
100~150
Ecer Certification：
Verified Supplier
Jiaxing City Qunbang Hardware Co., Ltd. (brand: QBH) is a fastener enterprise integrating production, design, sales, and after-sales service. The company is located in the Hangzhou-Jiaxing-Huzhou Plain, close to Shanghai, Ningbo, and Zhapu ports. Thanks to its superior geographical position and conv... Jiaxing City Qunbang Hardware Co., Ltd. (brand: QBH) is a fastener enterprise integrating production, design, sales, and after-sales service. The company is located in the Hangzhou-Jiaxing-Huzhou Plain, close to Shanghai, Ningbo, and Zhapu ports. Thanks to its superior geographical position and conv...
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