SS Screw Pin D Shackles – Marine-Grade 316 Stainless Steel

These SS screw pin D shackles are precision-engineered from marine-grade 316 stainless steel, delivering superior strength and corrosion resistance for demanding saltwater environments. The screw pin design allows for quick, tool-free installation and secure fastening, making them a versatile choice for rigging, lifting, and deck applications on board commercial vessels, fishing boats, and offshore platforms.

Each shackle features a D-shaped body that minimizes stress concentrations and reduces bending under heavy loads, while the smooth polished finish prevents snagging and damage to lines and cargo. Available in a wide range of sizes, these shackles are suitable for connecting ropes, chains, cables, and deck fittings, with safe working load limits certified for reliable performance in marine conditions.

Whether you need to secure cargo, rig sails, or perform general maintenance, these stainless steel screw pin D shackles from All-K Marine Ship Store offer the strength and dependability you require. Their ease of inspection and consistent quality make them an essential item in any vessel's deck gear inventory.

Key Features

Technical Specifications

Size (inch)Working Load Limit (lbs)Pin Diameter (inch)Approx. Weight (lbs)
1/4"5501/4"0.09
5/16"8005/16"0.13
3/8"1,1003/8"0.19
1/2"1,8001/2"0.35
5/8"2,6005/8"0.55
3/4"3,6003/4"0.82
1"5,2001"1.25

Frequently Asked Questions

What is the difference between a screw pin D shackle and a bolt-type shackle?

Screw pin shackles feature a threaded pin that can be quickly screwed in and out by hand or with a tool, making them suitable for temporary connections. Bolt-type shackles use a nut and bolt, offering a more secure connection for permanent applications.

Are these shackles suitable for saltwater use?

Yes, the 316 stainless steel construction provides excellent resistance to saltwater and harsh marine environments, making them ideal for onboard and offshore use.

How do I choose the correct size shackle?

Select a shackle with a working load limit that meets or exceeds the maximum load in your application. Also ensure the pin diameter fits comfortably through the eye of the rope, chain, or fitting you are connecting.

Can these shackles be used for lifting?

Yes, when used within their rated working load limits and with proper rigging practices, they are suitable for overhead lifting. Always inspect shackles before use and replace any that show signs of wear or corrosion.

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