Wholesale EN 14399-10 (CS Bolt):2018 High Strength Preload HRC System Tension Control Countersunk Head Bolt

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EN 14399-10 (CS Bolt):2018 High Strength Preload HRC System Tension Control Countersunk Head Bolt

EN 14399-10 (CS Bolt):2018 High Strength Preload HRC System Tension Control Countersunk Head Bolt is used where structural joints require controlled preload, low head projection, and high load capacity at the same time.

The HRC tension-control system supports more controlled installation results, while the countersunk head reduces protrusion. It is suitable for steel structures, bridge components, platform panels, and nodes requiring clearance or surface flatness.

This product is usually managed as part of a matched assembly, so consistency among bolts, nuts, and washers is important. Installation should consider friction-surface preparation, tightening sequence, and final inspection to ensure preload and structural safety.

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Dimensions unit: mm

Thread size d M12 M16 M20 M22 M24 M27 M30 M36
P Pitch 1.75 2 2.5 2.5 3 3 3.5 4
b L≤125 30 38 46 50 54 60 66 78
125<L≤200 - 44 52 56 60 66 72 84
L>200 - - 65 69 73 79 85 97
ds Max. 12.7 16.7 20.84 22.84 24.84 27.84 30.84 37
Min. 11.3 15.3 19.16 21.16 23.16 26.16 29.16 35
dk Max. 24 32 40 44 48 54 60 72
Min. 23.16 31.16 39 43 47 53 58.8 70.8
k Nominal 8 10 13 14 16 17.5 19.5 23
Max. 8.75 10.75 13.9 14.9 16.9 18.4 20.55 24.05
Min. 7.25 9.25 12.1 13.1 15.1 16.6 18.45 21.95
r Max. 1.6 1.6 2 2 2 2.5 2.5 2.5
Min. 1.2 1.2 1.5 1.5 1.5 2 2 2
db Nominal 7.7 11.3 14.1 15.4 16.8 19 21.1 25.4
Max. 8 11.6 14.4 15.7 17.1 19.3 21.4 25.7
Min. 7.4 11 13.8 15.1 16.5 18.7 20.8 25.1
dc Min. 8.36 12.43 15.6 17.06 18.65 21.13 23.5 28.5
F1 Min. 11 13 15 15.5 16 19 21 25
F2 Max. 16 18 20 21 21.5 24 26 31
Lg Max. - - - - - - - -
Thread length b  - - - - - - - -

FAQ

Frequently Asked Questions

  • 1. How soon can I expect a reply after sending an inquiry?

    A: We take every inquiry seriously. On working days, we will respond within 12 hours after receiving your inquiry.

  • 2. What products do you mainly offer?

    A: We focus on the production of fasteners made of carbon steel, stainless steel, and low-alloy steel. We are a direct manufacturer with independent production capacity. EN 14399-10 (CS Bolt):2018 High Strength Preload HRC System Tension Control Countersunk Head Bolt Factory. We own several fastener manufacturing facilities and have an international sales department, providing full-process services from production to export.

  • 3. Do you support customized production?

    A: Customized production is our core business. We can develop and manufacture products based on the drawings or samples you provide.

  • 4. Do you produce standard parts?

    A: Yes. In addition to custom products, we also produce general construction machinery parts (GET parts) for equipment such as excavators, including bucket teeth, tooth holders, corner blades, pins, clips, bolts and nuts. EN 14399-10 (CS Bolt):2018 High Strength Preload HRC System Tension Control Countersunk Head Bolt Wholesale.

  • 5. What is your production capacity?

    A: We have 12 energy-efficient and environmentally friendly modern production lines (including one fully automatic shell molding line and four heat treatment lines), with an annual production capacity exceeding 20,000 tons, enabling us to steadily meet various order requirements.

  • 6. What are your payment terms?

    A: Trade terms (such as FOB, CIF, etc.) are confirmed when quoting. For batch production, we typically require a 30% deposit, with the balance paid against the copy of the bill of lading. T/T is the main payment method accepted, and L/C can also be negotiated.

  • 7. How is the shipment arranged?

    A: We are only 35 km away from Shanghai Port and Ningbo Port, so sea freight is the main mode of transportation, which is convenient and efficient. For urgent deliveries, we can also arrange air freight via Ningbo or Shanghai airports.

Better Fastener Industry Co., Ltd.

About Us

BETTER FASTENER INDUSTRY CO., LTD.

Better Fastener is a professional fastener enterprise specializing in the manufacturing of steel washers, stainless steel washers, spring washers and sealingwashers. Founded in 2001 as a washer factory, the company expanded into a comprehensive enterprise integrating washers, nuts, bolts, spring nuts and other fastener products in 2010. EN 14399-10 (CS Bolt):2018 High Strength Preload HRC System Tension Control Countersunk Head Bolt Suppliers in China.

The company positions itself as a provider of comprehensive one-stop services for customers, relying on technological R&D, industrial investment and trade distribution.

With an experienced professional team and a sound sales network, Better Fastener has achieved excellent sales performance in both domestic and foreign markets,and has grown into one of the competitive manufacturers and suppliers in China's industrial fastener industry.

Better Fastener is committed to becoming a trusted fastener supplier for customers with reliable product quality, reasonable prices and on-time delivery

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