320A Drop Forged Carbon Steel Eye Hook with Safety Latch

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320A Drop Forged Carbon Steel Eye Hook with Safety Latch

The eye hook with lock buckle forged painted eye hook Us 320a with safety lock is a critical rigging hardware component used for lifting and hoisting heavy objects in industries such as construction, manufacturing, shipping, and logistics. Typically made from high-strength steel, stainless steel, or alloy steel for corrosion resistance and load-bearing capacity., which provides a safe connection point for cables, chains, or slings, ensuring safe and efficient load handling.

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Product Advantage

1、High quality materials, excellent load-bearing capacity

The alloy steel (Grade 80/100) treated with quenching and tempering has a tensile strength of over 800MPa and a hardness of HRC 25-35, maintaining excellent performance even in extreme environments. Surface galvanizing or spraying treatment increases corrosion resistance by 50%, suitable for harsh working conditions such as humidity and high temperature, and extends service life by 30%.

2、Multi functional design to meet diverse needs

The 320A Lifting Eye Hook is made of high-strength alloy steel material, with a rated load of over 20 tons, and is suitable for various heavy-duty lifting scenarios such as construction, shipbuilding, and manufacturing. Its unique rotating design allows for 360 ° free rotation, reducing rope wear and improving operational flexibility. After testing, the product complies with ISO 9001 and ASME B30.26 international standards, ensuring safety and durability.

3、Precise craftsmanship, safe and reliable

Each 320A hook has undergone ultrasonic testing and load testing, with a safety factor of 4:1, far exceeding industry standards. The unique thread locking design prevents accidental loosening, coupled with high-strength nuts, ensuring zero risk during the lifting process. Customer feedback shows that the product failure rate is below 0.1%, making it an ideal choice for efficient operations.

4、Global certification, trustworthy

The product has passed international certifications such as CE, GS, OSHA, etc., and is exported to more than 30 countries in Europe, America, Southeast Asia, etc., with an annual sales volume of over 500000 pieces. Provide a 3-year warranty service and 24-hour technical support to assist customers in achieving efficient and safe lifting operations.

Product Parameters

lifting eye hook size

Model	320A
Type:	Swivel Eye Hook
Rated load	20 tons (static)/5 tons (dynamic, subject to actual operating conditions)
Safety factor	4:1 (compliant with ASME B30.26 standard)
Material	High strength alloy steel (Grade 80/100)
Surface treatment	hot-dip galvanizing/spraying (optional), anti-corrosion grade C4
Thread specification	M20-M64 (metric), or customized according to customer needs
Rotation angle	360 ° free rotation, reducing wire rope wear
Tensile strength	≥ 800 MPa

type	thread diameter (	(Height)	(diameter)	Applicable wire rope diameter
320A-M20	M20	120 mm	50 mm	10-12 mm
320A-M30	M30	150 mm	60 mm	14-16 mm
320A-M48	M48	220 mm	80 mm	20-24 mm

Product Application

Introduction

1. Construction & Heavy Engineering

1.Used for lifting precast concrete slabs, steel beams, and construction machinery.
2.Suitable for tower cranes, gantry systems, and rigging operations in high-rise buildings and bridges.
3.Withstands dynamic loads during hoisting and positioning of heavy materials.
2. Marine & Offshore Operations

1.Ideal for shipbuilding, port cargo handling, and offshore platform maintenance.
2.Corrosion-resistant (hot-dip galvanized or coated) for saltwater environments.
3.Used in anchor handling, winch systems, and deck lifting operations.
3. Oil & Gas Industry

1.Deployed in drilling rigs, pipeline installation, and refinery equipment lifting.
2.High heat resistance (up to 200°C) for extreme working conditions.
3.Ensures safe load handling in hazardous zones

FAQ

Q1: What is the rated load of the 320 eyebolt? How to distinguish between dynamic and static loads?

Static load (vertical force): 20 tons (such as fixed lifting)

Dynamic load (moving/swinging condition): 5 tons (recommended value, combined with acceleration coefficient)

Safety factor: 4:1, certified by ASME B30.26 and EN 13889, ensuring safety under extreme working conditions.

Q2: What is the rated load of the 320 eyebolt? How to distinguish between dynamic and static loads?

Static load (vertical force): 20 tons (such as fixed lifting)

Dynamic load (moving/swinging condition): 5 tons (recommended value, combined with acceleration coefficient)

Safety factor: 4:1, certified by ASME B30.26 and EN 13889, ensuring safety under extreme working conditions.

Q3: Will 360 ° rotation reduce strength? Is long-term rotation prone to wear and tear?

Bearing design: Built in wear-resistant bearing sleeve, rotation resistance ≤ 5N · m, no jamming after 100000 tests.

Wear resistant: The contact surface between the lifting ring and the hook is hardened, which increases the service life by 50% compared to ordinary products.

Q4: Can it be used in high temperature or extremely cold environments?

Temperature range: -40 ℃~+200 ℃ (heat-resistant steel material should be selected for high temperatures).

Impact resistance: Charpy impact test at -30 ℃ ≥ 27J, suitable for low-temperature scenarios such as the Arctic and mines