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Help CenterRigging Shackle 3/4 Inch Screw Pin, Alloy Steel, 3.25 Ton Safe Working Load
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Welcome to Anping County Boli Hardware Wiremesh Products Factory – a trusted manufacturer since 1998 with over two decades of experience in producing high-quality rigging hardware. Our Rigging Shackle 3/4 Inch Screw Pin, Alloy Steel, 3.25 Ton Safe Working Load is designed to meet the demanding needs of lifting, towing, and marine applications. Crafted from premium alloy steel, this shackle delivers exceptional strength and durability, ensuring reliable performance even under heavy loads. With an annual export value of US$5-10 million, we serve global markets including North America, Europe, Southeast Asia, and Africa, offering consistent quality backed by a professional manufacturing base in Hengshui, Hebei, China.
Our shackle undergoes rigorous quality control to ensure every unit meets the 3.25-ton safe working load rating. The screw pin design allows for quick and secure attachment, making it ideal for rigging, construction, and industrial applications. Whether you need a single shackle or bulk orders for your distribution network, our factory can fulfill your requirements with competitive pricing and timely delivery from Tianjin, Qingdao, Shanghai, or Foshan ports.
Key Features
- Premium Alloy Steel Construction: Heat-treated and quenched for maximum strength and wear resistance.
- 3.25 Ton Safe Working Load: Tested and certified to handle loads up to 6.5 times the working load limit (proof load).
- Screw Pin Design: Easy to install and remove, with a threaded pin that locks securely to prevent accidental loosening.
- Standard Size: 3/4 inch (19mm) pin diameter, compatible with most rigging chains, slings, and hooks.
- Versatile Applications: Suitable for lifting, towing, marine, offshore, and agricultural rigging.
- Customizable Options: Available in galvanized, painted, or self-colored finish upon request.
Technical Specifications
| Parameter | Value |
| Pin Diameter | 3/4 inch (19 mm) |
| Safe Working Load (SWL) | 3.25 tons (6500 lbs) |
| Proof Load (2x SWL) | 6.5 tons (13000 lbs) |
| Breaking Load (4x SWL) | 13 tons (26000 lbs) |
| Material | Alloy Steel (ASTM A-1A equivalent) |
| Pin Type | Screw Pin (Threaded) |
| Surface Finish | Self-colored (as forged); Galvanized or painted optional |
| Weight (approx.) | 1.2 lbs (0.54 kg) per piece |
Product Benefits for Your Business
- Enhanced Safety: The screw pin provides a positive lock, reducing the risk of pin dislodgment during operation.
- Long Service Life: Alloy steel withstands corrosion, fatigue, and impact, even in harsh environments.
- Cost-Effective: Direct factory pricing eliminates middleman margins, giving you a competitive edge.
- Global Shipping: We ship from multiple Chinese ports with efficient logistics to meet your deadlines.
- Consistent Quality: Every batch is inspected for dimensional accuracy, hardness, and load capacity.
Trusted by industries worldwide, our shackles are used in construction, shipping, mining, and entertainment rigging. With a factory established in 1998 and an annual export value exceeding US$5 million, we have the capacity to handle orders from small quantities to full container loads. Our main markets span across North America, South America, Europe, Asia, Africa, and Oceania, reflecting our commitment to international quality standards. Each shackle is marked with its SWL for easy identification and compliance with workplace safety regulations.
We welcome OEM and custom specifications. Whether you need a specific finish, packaging, or additional testing certifications, we can accommodate your requirements. Contact us today to discuss your rigging needs – our experienced team is ready to provide technical support and competitive quotations.
Frequently Asked Questions
1. What is the safe working load of this shackle?
The 3/4 inch screw pin shackle has a safe working load of 3.25 tons (6,500 lbs). The proof load is 6.5 tons, and the breaking load is 13 tons.
2. What material is the shackle made of?
It is made from alloy steel, heat-treated for strength and durability. The standard finish is self-colored, but galvanized or painted options are available on request.
3. Can I use this shackle for overhead lifting?
Yes, this shackle is suitable for overhead lifting applications as long as the working load limit is not exceeded and proper inspection is performed regularly. Always follow local safety regulations.
4. What is the difference between screw pin and round pin shackles?
A screw pin shackle has a threaded pin that can be hand-tightened, allowing for easy installation and removal without tools. It is ideal for temporary connections. A round pin shackle requires a hammer or tool to secure the cotter pin.
5. Do you provide certificates of conformance or test reports?
Yes, we can provide a Certificate of Conformance (COC) with each shipment. Third-party testing reports are available upon request at additional cost.
6. What is the minimum order quantity (MOQ)?
Our MOQ for this shackle is typically 100 pieces for stock sizes. For custom finishes or packaging, please inquire for specific MOQ.
7. How long does delivery take?
For standard products, delivery takes about 15-25 days after order confirmation, depending on quantity. We ship from Tianjin, Qingdao, Shanghai, or Foshan ports.
8. Can I get a sample before placing a bulk order?
Yes, we offer samples. The sample cost is to be paid by the buyer, but we will refund the sample fee upon bulk order placement. Shipping charges apply.
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