We have prepared a stronger type of D-LOCK, which achieves high workability with a two-piece structure.
As a variation product of the "D-LOCK," we have prepared a product with a strength classification of 6.8, which is higher than the standard strength. Please take advantage of the D-LOCK's benefits while utilizing it for applications that previously could not use D-LOCK due to strength requirements. 【Features】 ■ Excellent workability with a 2-piece structure Unlike the conventional 5-piece (B, N, Wx2, SW), D-Lock adopts a 2-piece structure. ■ Anti-rebound function and high workability D-Lock employs a disc spring as an anti-rebound feature. ■ Bolts and nuts are domestically produced (including in-house production, except for some nuts) ■ Supports traceability through lot management We will provide inspection reports for set products. ■ Utility model (No. 3230995), technical evaluation obtained. ■ Various variation products that meet customer requests. ◎ For more details, please refer to the PDF document or feel free to contact us.
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basic information
【 Product Specifications 】 ■ Strength Classification: 6.8 (Nut Strength Classification 6T) ■ Surface Treatment: Zinc Plating (Electrogalvanized) Hot-Dip Galvanized Tin Alloy (KSG) Plating ■ Sizes: M12X30–40, M16X35–50 (For details, please refer to the ★ mark in the size chart in the image section) * For sizes and surface treatments not listed above, please contact us. * Dimensions will be the same as the conventional D-LOCK. * As of August 1, 2022, the quantity for some sizes has changed. * Orders for nuts only, without sets, are also accepted. * For more details, please feel free to contact us.
Price range
Delivery Time
※The delivery date may vary depending on the quantity, so please feel free to contact us.
Applications/Examples of results
【Applications】 ■ Bolt connections for building rafters and purlins, and relatively minor structures ■ Construction machinery, industrial machinery, environmental equipment, etc. ■ Panel and frame connections for solar power plants ■ Connection work in narrow spaces, such as piping ■ Bolt connections for stair handrails Additionally, it can be used in many bolt connection points where hexagon bolts were previously used.
Line up（2）
| Model number | overview |
|---|---|
| M12 | Neck lengths of 30, 35, and 40. |
| M16 | Neck lengths: 35, 40, 45, 50. |
Company information
TONEJI Co., Ltd. not only provides traditional fastener products such as bolts, nuts, and washers, but also assists customers in creating better products through the development and design of metal parts and value-added proposals to meet various demands in a diversifying society. Currently, we mainly manufacture and sell our unique brand products such as D-Lock, HugBolt, and T-LSB. We also engage in the production of custom-made products and contract testing. Under the philosophy of "creating work that contributes to society," we will take on the mission of supplying safer, more convenient, and stable quality products with a new company name and new structure.