Hunan Jia Shan Hardware Tech Co., Ltd.
admin@jshardwaretech.com
86-0731 -82919092
Product Details
Place of Origin: China
Brand Name: JIA SHAN
Certification: ISO 9001
Model Number: Customized
Payment & Shipping Terms
Minimum Order Quantity: 10
Price: 0.01-11
Packaging Details: plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film/ Customized as your requirements
Delivery Time: 5-15days
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 100000
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Package Quantity:
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100 Pieces
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Color:
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Customized/Silver/Plain
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Material:
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Stainless Steel
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Thread Pitch:
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Customized
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Corrosionresistance:
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High/Customized
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Headtype:
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L Hook Metal Screw
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Port:
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Shenzhen, Guangzhou
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Common Uses:
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Construction, Automotive, Machinery
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Finish:
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Black/Zinc Plated
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Thread Type:
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Mechined Thread
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Rust Proof:
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Yes
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Manufacturer:
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Various Manufacturers
|
|
Package Quantity:
|
100 Pieces
|
|
Color:
|
Customized/Silver/Plain
|
|
Material:
|
Stainless Steel
|
|
Thread Pitch:
|
Customized
|
|
Corrosionresistance:
|
High/Customized
|
|
Headtype:
|
L Hook Metal Screw
|
|
Port:
|
Shenzhen, Guangzhou
|
|
Common Uses:
|
Construction, Automotive, Machinery
|
|
Finish:
|
Black/Zinc Plated
|
|
Thread Type:
|
Mechined Thread
|
|
Rust Proof:
|
Yes
|
|
Manufacturer:
|
Various Manufacturers
|
High-Strength Steel J-metal Bolt Foundation Anchor M22 with Zinc-Aluminum Coating for Wind Turbine Tower Base
1,Description:
Bolts serve as fundamental fastening elements in the construction industry, performing critical functions that ensure structural integrity, safety, and durability across diverse building applications. Their primary role involves connecting structural members such as steel beams, columns, trusses, and concrete elements, effectively transferring loads and forces throughout the building framework. In steel construction, bolts create rigid or semi-rigid joints that resist shear forces, tension loads, and bending moments, enabling the structural system to behave as a unified entity under various loading conditions including gravity, wind, seismic activity, and live loads.
Beyond structural connections, bolts fulfill essential functions in non-structural applications including facade attachment, equipment mounting, railing installation, and temporary bracing during construction phases. Foundation bolts, such as J-bolts and L-bolts, anchor structural columns and heavy machinery to concrete bases, preventing uplift and lateral displacement. Anchor bolts embedded in concrete transfer overturning moments and tensile forces from superstructures into foundation elements, ensuring overall building stability.
2,Applications:
A hook bolt is a specialized fastener characterized by its curved, hook-shaped end, designed primarily for securing objects to structural members or creating temporary or permanent anchor points where conventional straight bolts cannot provide adequate retention. In construction and industrial applications, the hook configuration serves several distinct functional purposes that address specific installation challenges and load transfer requirements.
Roofing and facade applications represent another common use case for hook bolts. Workers install these fasteners through roofing sheets or wall panels into underlying purlins or girts, with the hook end engaging the structural member from below or behind. This installation method eliminates the need for access to the back side of the supporting structure, simplifying assembly and reducing labor costs. The hook provides immediate retention during placement, allowing installers to position components before final tightening, which improves productivity and safety when working at height or in confined spaces.
In temporary construction applications, hook bolts enable rapid attachment and removal of formwork, scaffolding, safety netting, and bracing systems. The quick engagement and disengagement capability supports efficient workflow without sacrificing load capacity or safety. Construction crews use hook bolts to suspend conduit, ductwork, and piping from overhead beams, where the hook end wraps around the beam flange while the threaded portion accepts hangers and clamps. This suspension method accommodates thermal expansion, vibration isolation, and future adjustments more readily than welded or rigidly bolted alternatives.
Material handling and industrial equipment frequently incorporate hook bolts for securing guards, covers, and access panels that require periodic removal for maintenance. The hook end maintains alignment and partial support even when the nut is loosened, preventing components from falling or shifting unexpectedly during service operations. This feature enhances worker safety and reduces downtime in manufacturing facilities, power plants, and processing installations.
3,Technical Advantages
High-strength steel (HSS) refers to a category of steel with a yield strength significantly higher than that of ordinary carbon structural steel (typically ≥355 MPa or 50 ksi). It achieves excellent comprehensive mechanical properties through processes such as alloying, heat treatment, or controlled rolling and cooling. Its key characteristics are as follows:
Outstanding Mechanical Properties
The most notable characteristic of high-strength steel is its exceptionally high strength. Its yield strength can be 2–4 times that of standard Q235 steel, with tensile strength typically exceeding 500 MPa; some ultra-high-strength steels even surpass 1,000 MPa. This strength advantage allows for a significant reduction in cross-sectional dimensions of components whilst meeting the same load-bearing requirements, thereby achieving structural lightweighting. For example, the use of high-strength steel in car bodies allows component thickness to be reduced from 2.0 mm to 1.2 mm, reducing the overall vehicle weight by 15%–20% whilst maintaining crash safety. Alongside this increase in strength, high-strength steel generally maintains a good yield-to-tensile strength ratio (0.85–0.95), ensuring the ability to provide early warning of plastic deformation.
Excellent strength-to-weight ratio
The core value of high-strength steel, which is irreplaceable in sectors such as aerospace, automotive and bridge construction, lies in its exceptional specific strength. For the same structural load-bearing capacity, the weight of high-strength steel components is significantly reduced, directly translating into improved fuel efficiency, lower transport costs or increased span capacity. The main cables and hangers of long-span cable-stayed bridges utilise high-strength steel wires (with a tensile strength of 1860 MPa), making spans of over a kilometre possible.
Good toughness and resistance to brittle fracture
Modern high-strength steel utilises microalloying (Nb, V, Ti) and TMCP (Thermomechanical Control Process) technologies to refine grain size whilst enhancing strength, thereby improving low-temperature toughness. Many high-strength steels retain good impact toughness at temperatures as low as -40°C or even -60°C, meeting the demands of harsh environments such as bridges in cold regions and offshore platforms. However, it should be noted that as the strength grade increases, the material’s susceptibility to hydrogen embrittlement and stress corrosion cracking also increases, necessitating strict control of welding materials and processes.
Available in small packing, carton packing, or pallet configurations to meet your shipping and storage requirements.
Manufactured by JIA SHAN Hardware Company with strict quality control measures and pre-shipment inspection.
