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BS En15048-1 Sb Half Thread Hex Head Bolt
BS EN 15048-1 SB Half-Thread Hexagon Head Bolt – Non-preloaded structural bolting assembly per BS EN 15048-1:2016, bolt conforming to ISO 4014 (partial thread) with unthreaded shank through shear planes. Diameters M12–M39 for steel structures per EN 1090-2. Property class 8.8U, where “U” designates 6az undersized thread tolerance before hot-dip galvanizing (HDG) per EN ISO 10684, ensuring 6H nut compatibility after coating. Minimum tensile strength 800 MPa for M8–M10 and 830 MPa for M12 and above. Paired with hexagon nut per ISO 4032, property class 8. Head marked with “SB” (Structural Bolting), property class, manufacturer ID, and production batch for full traceability. CE marked under hEN 15048-1 with EN 10204 Type 3.1 inspection certificate available. Washers per ISO 7089 ordered separately. Intended exclusively for static shear or simple fastening connections without preload; not for preloaded or slip-critical joints. Finishes: hot-dip galvanized, electroplated, or plain.
BS EN 15048-1 SB Half-Thread Hexagon Head Bolt – Non-preloaded structural bolting assembly per BS EN 15048-1:2016, bolt conforming to ISO 4014 (partial thread) with unthreaded shank through shear planes. Diameters M12–M39 for steel structures per EN 1090-2. Property class 8.8U, where “U” designates 6az undersized thread tolerance before hot-dip galvanizing (HDG) per EN ISO 10684, ensuring 6H nut compatibility after coating. Minimum tensile strength 800 MPa for M8–M10 and 830 MPa for M12 and above. Paired with hexagon nut per ISO 4032, property class 8. Head marked with “SB” (Structural Bolting), property class, manufacturer ID, and production batch for full traceability. CE marked under hEN 15048-1 with EN 10204 Type 3.1 inspection certificate available. Washers per ISO 7089 ordered separately. Intended exclusively for static shear or simple fastening connections without preload; not for preloaded or slip-critical joints. Finishes: hot-dip galvanized, electroplated, or plain.
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Product Details
BS EN 15048-1 Non-Preloaded Structural Bolting Assemblies | SB Half-Thread Hexagon Head Bolt
Product Introduction
CE-marked structural bolting assemblies manufactured to BS EN 15048-1:2016 for non-preloaded connections in steel structures executed to EN 1090-2. Each assembly comprises a hexagon head bolt to ISO 4014 with partial thread, a hexagon nut to ISO 4032, and optional washers to ISO 7089. Property class 8.8U. Thread sizes M8 to M39 in ISO metric coarse pitch. The bolt head carries the “SB” (Structural Bolting) marking for traceability. Supplied with batch-specific 3.1 inspection certificate per EN 10204 and a Declaration of Performance (DoP) under the Construction Products Regulation.
Material & Mechanical Properties
Carbon steel, property class 8.8U per ISO 898-1. Minimum tensile strength 800 MPa for diameters up to M16 and 830 MPa for larger diameters. Minimum yield strength 640 MPa. Stress under proof load 580 MPa. Minimum elongation 12%. The “U” suffix denotes oversize thread tolerance 6az applied before hot-dip galvanizing, ensuring final thread fit meets 6H/6g after coating. Mechanical values are certified by lot with heat-number traceability.
Geometry & Thread
Bolt dimensions conform to ISO 4014, product grades A and B. The half-thread shank provides an unthreaded, full-diameter section through the shear plane, increasing shear resistance and joint stiffness compared with fully threaded fasteners. Nut dimensions conform to ISO 4032, style 1. Metric coarse thread series. Washers, where specified, are ordered separately to ISO 7089, hardness class 200 HV.
Certification & Marking
Bolt head permanently marked with “SB”, property class 8.8, and a batch traceability code. CE marking under the Construction Products Regulation via harmonised standard hEN 15048-1. All components are supplied as a matched set from a single CE-certified manufacturer. 3.1 inspection certificate and DoP are provided with each batch.
Application Suitability
Non-preloaded static shear connections in steel frames, bracing, secondary members, platforms, and general structural steelwork designed to EN 1090-2. The half-thread configuration positions the full-diameter shank across the shear plane, optimising load capacity without requiring torque-controlled preloading. Where the connection design calls for washers, they are specified separately to ISO 7089.
BS EN 15048-1 Non-Preloaded Structural Bolting Assemblies | SB Half-Thread Hexagon Head Bolt
Product Introduction
CE-marked structural bolting assemblies manufactured to BS EN 15048-1:2016 for non-preloaded connections in steel structures executed to EN 1090-2. Each assembly comprises a hexagon head bolt to ISO 4014 with partial thread, a hexagon nut to ISO 4032, and optional washers to ISO 7089. Property class 8.8U. Thread sizes M8 to M39 in ISO metric coarse pitch. The bolt head carries the “SB” (Structural Bolting) marking for traceability. Supplied with batch-specific 3.1 inspection certificate per EN 10204 and a Declaration of Performance (DoP) under the Construction Products Regulation.
Material & Mechanical Properties
Carbon steel, property class 8.8U per ISO 898-1. Minimum tensile strength 800 MPa for diameters up to M16 and 830 MPa for larger diameters. Minimum yield strength 640 MPa. Stress under proof load 580 MPa. Minimum elongation 12%. The “U” suffix denotes oversize thread tolerance 6az applied before hot-dip galvanizing, ensuring final thread fit meets 6H/6g after coating. Mechanical values are certified by lot with heat-number traceability.
Geometry & Thread
Bolt dimensions conform to ISO 4014, product grades A and B. The half-thread shank provides an unthreaded, full-diameter section through the shear plane, increasing shear resistance and joint stiffness compared with fully threaded fasteners. Nut dimensions conform to ISO 4032, style 1. Metric coarse thread series. Washers, where specified, are ordered separately to ISO 7089, hardness class 200 HV.
Certification & Marking
Bolt head permanently marked with “SB”, property class 8.8, and a batch traceability code. CE marking under the Construction Products Regulation via harmonised standard hEN 15048-1. All components are supplied as a matched set from a single CE-certified manufacturer. 3.1 inspection certificate and DoP are provided with each batch.
Application Suitability
Non-preloaded static shear connections in steel frames, bracing, secondary members, platforms, and general structural steelwork designed to EN 1090-2. The half-thread configuration positions the full-diameter shank across the shear plane, optimising load capacity without requiring torque-controlled preloading. Where the connection design calls for washers, they are specified separately to ISO 7089.
FAQ
1. How do you let me trust you.
Jiaxing City Qunbang Hardware Co.,ltd hs its own right of import and export,QBH trademark in China,United States,European Union have been registered.At the same time,you can also check the registration information of our company in the China industry and Commerce system.
2. How about your price.
We will be based on different markets,for different quality and quantity,tailor-made prices for customers,in order to achieve win-win goal.
3. How do you control your quality.
Incoming quality contral( IQC)→Process Quality control(PQC)→Output quality control(OQC),and the random samples is sent to TUV for testing.If the customer received the goods and found quality problems,QBH company promises to be responsible for returning money or replenishing the goods
4. Could you provide free samples?
For new customer, We can provide free samples for standard fastener, But the clients will pay the express
charges. For old customer, We will send you free samples and pay express charges by ourself.
5. What is your packing.
Usually 25KG/carbon,36CTNS on the pallets,or 20-30kg/Bags,then on the pallet,QBH company personalized packagingis also available,like 10PCS/plastic bag or 10pcs/box,it can print some information
such as LOGO and pattern of customers.
6. What is your payment term
Normally,our terms of payment are TT and L/C,if we cooperate for a long time,we can reach the point of mutual trust,and fully support our customers to become bigger and stronger in the local market.Not only in the price concessions,but also in the payment can also be made on credit,Specific credit sales time needs to be negotiated separately.
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