Rock bolts with excellent durability, workability, and cost-effectiveness! By applying saturated polyester processing to the steel material, it is free from oils and fats. It is an environmentally friendly product.
The HD Lock Bolt Method is a highly durable locking bolt technique that features double rust prevention with zinc plating and saturated polyester coating on the head and the back of the head, where corrosion is most concerning. It employs a cap nut lock bolt system at the head, which integrates the cap, nut, and angle adjustment function, resulting in an excellent head fixing system in terms of workability and cost-effectiveness. Additionally, the double rust prevention on the back eliminates the need for rust-proof oil, making it an environmentally friendly method. Performance of Saturated Polyester: - Excellent adhesion to various metals - Superior resistance to acids, weather, salt damage, impact, and wear - Usable even in strongly acidic ground with a pH of 3 or lower - Non-toxic, harmless, and environmentally friendly coating technology - Confirmed high durability of over 50 years through exposure testing 【Features】 1. Corrosion Resistance - Over 50 years of corrosion resistance due to zinc plating and saturated polyester coating - No need for rust-proof oil filling as the materials do not corrode 2. Workability - Reduced parts and improved workability through the integration of the cap, nut, and angle adjustment function - Lightweight due to the use of aluminum castings - One-touch fixing with patch spacers 3. Cost-effectiveness - Economic benefits from reduced parts - Reduced life cycle costs due to improved durability
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【Product Lineup】 ■D19 ■D22 ■D25 ■D29 ■D32 *For more details, please refer to the catalog or feel free to contact us.
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Hirokawa Sangyo Co., Ltd. has been consistently engaged in the design, manufacturing, and sales of ground anchor components for a quarter of a century since its founding. We will continue to prioritize customer satisfaction and safety first, with technological development as our corporate motto, processing and manufacturing numerous products in our own factory, and establishing a system for prompt delivery to meet more of your requests.