Delivering the appropriate axial force more easily and quickly. Super Bolt GT Series.
The GT tensioner is ideal for medium to high-strength studs and bolts. It is also suitable for use in harsh environments, allowing for the safe and easy installation of high axial forces, and can be used with various large-diameter bolts. The small jack bolt at the top of the product can be installed and removed with hand tools, enabling consistent axial force regardless of the operator's skill level, thus providing high reproducibility. Additionally, we maintain stock domestically, allowing for short delivery times.
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basic information
The GT tensioner is ideal for medium to high-strength studs and bolts. It is also suitable for use in harsh environments, allowing for the safe and easy installation of high axial forces, and can be used with various large-diameter bolts. The small jack bolt at the top of the product can be installed and removed with hand tools, enabling consistent axial force regardless of the operator's skill level, thus providing high reproducibility. Additionally, it is compatible with GT series bolts and studs of grades 8.8, 10.9, or equivalent. The GT series boasts nut strength comparable to strength category 8 of ISO898-2. It is available in a wide range of sizes from M16 to M160, making it suitable for various applications and locations. We encourage you to consider it. If you are considering grade 10.9 or equivalent, the GTS series is available (non-stock item).
Price range
Delivery Time
P2
※Delivery times may vary depending on quantity and size, so please feel free to contact us.
Applications/Examples of results
By using the Superbolt Multi-Jackbolt Tensioner (MJT), large diameter bolts can be easily tightened with just one torque wrench, and extremely accurate axial forces can be achieved. No specialized skills or tools are required. We offer standard products with tensioners that accommodate a wide range of bolt diameters, and we also accept design and development of special products to meet our customers' unique needs, which can be used in various fields such as steelmaking, railways, power generation, and chemicals. ■ Turbo equipment for oil & gas, petroleum refining, petrochemicals, steel mills, power plants, etc. https://www.nord-lock.com/ja-jp/insights/customer-cases/2016/sb-learning-from-traditions/ ■ Steelmaking https://www.nord-lock.com/ja-jp/insights/customer-cases/2017/improving-steel-mill-safety-and-productivity/
Detailed information
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The GT tensioner is ideal for medium to high-strength studs and bolts. It is also suitable for use in harsh environments, allowing for the safe and easy installation of high axial forces, and can be used with various large-diameter bolts. The small jack bolt at the top of the product can be installed and removed with hand tools, enabling anyone to achieve the same axial force regardless of their skill level, resulting in high reproducibility. Additionally, we maintain stock domestically, allowing for quick delivery.
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Company information
Nortlock Japan Co., Ltd. aims to be a partner in solving all bolt fastening challenges, centered around four brands: the "Nortlock Washer," a locking mechanism that does not rely on friction and prevents loosening; the "Superbolt," which allows enormous bolts and nuts that cannot be tightened by hand to be tightened with just one torque wrench; the "Boltight," which can simultaneously tighten multiple large-diameter bolts with uniform pressure; and the "Expander," a pivot pin for construction and heavy machinery that can be used semi-permanently.