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Polyform 33-957-400 A Series Buoy Shackle 1-1/4" Galvanized Steel

Manufacturer

Polyform

<h3>About Polyform US</h3><p>When it comes to protecting your vessel and marking the water, few names carry the weight that Polyform US does. <strong>Headquartered in Kent, Washington</strong>, Polyform has spent decades earning a reputation as one of the most trusted manufacturers of boat fenders and marine buoys in the world — and they do it all right here in the United States. Their products can be found in ports, marinas, and on working vessels across every ocean, a testament to the kind of durability that only comes from uncompromising manufacturing standards.</p><h3>A Legacy Built on the Water</h3><p>The Polyform story began with a single iconic product: the A Series buoy. <a href="/7498-polyform-pickupmarkermast-buoys-202345">Pickup, marker, and mast buoys</a> are at the heart of what Polyform does, and their A Series remains one of the most recognized buoys in the marine industry. Featuring Polyform&apos;s signature blue ropehold and even wall thickness, the A Series has proven itself in the most demanding open-water conditions — from calm inland lakes to heavy offshore seas. It&apos;s a product that launched a legacy.</p><p>But Polyform&apos;s lineup extends well beyond a single series. Their <strong>CC Series</strong> hole-through-middle buoys serve as reliable mooring, marker, and commercial-grade tools trusted by long-line fishermen, fish farmers, and geophysical researchers alike. The <strong>S Series</strong> offers slender, cylindrical mast-style buoys ideal for marking dive spots, race courses, and hazards. Across all these product lines, Polyform builds for real-world conditions — not ideal ones.</p><h3>Boat Fenders for Every Vessel</h3><p>Polyform&apos;s fender lineup is equally impressive in its scope and engineering. The <strong>F Series</strong> twin-eye fenders are designed for larger vessels that need serious protection at the dock, while the <strong>G Series</strong> all-around fenders are a favorite for trailered boats and permanent moorings alike. For vessels in high-stress docking environments like boat locks and tidal areas, the <strong>NF Series</strong> delivers heavy-duty, single-piece construction with molded-in ribs for extra abrasion resistance. The <strong>HTM (Hole-Through-Middle) Series</strong> offers maximum versatility, excelling in any docking application on larger boats.</p><p>Every Polyform fender features one-piece construction, a proprietary vinyl valve system engineered for years of reliable service, and even wall thickness throughout — details that reflect a brand that sweats the small stuff so boaters don&apos;t have to.</p><h3>Quality That Sets the Standard</h3><p>What truly separates Polyform from the competition is their commitment to consistent, verifiable quality. Their signature blue ropeholds have become something of an industry hallmark — instantly recognizable in marinas worldwide and synonymous with dependable holding strength. Available in a wide range of colors and sizes to suit everything from small recreational runabouts to large commercial vessels, Polyform products are built to handle UV exposure, abrasion, and the relentless stress of life on the water.</p><p>For boaters who refuse to compromise on the equipment that protects their investment, Polyform US delivers proven performance backed by a manufacturing heritage that spans generations.</p>

Part Number

33-957-400
06/01/2036 12:35 PM
Sale Price

$32.83

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Polyform A Series Buoy Shackle is a heavy-duty marine mooring accessory designed for secure anchoring and mooring applications. Constructed from durable 1/2" diameter galvanized steel, this shackle provides exceptional corrosion resistance and strength in harsh marine environments.

Key Features:

  • 1/2" diameter galvanized steel construction for superior durability
  • 3/8" threaded pin for secure fastening
  • 1-1/4" PVC plastic insert distributes load evenly across rope hold area
  • Safe working load limit of 5,000 lbs
  • Reduces chafing and wear on mooring lines
  • Compatible with Polyform A Series buoys and mooring systems

The integrated PVC insert is a critical feature that helps maximize the performance and longevity of your mooring lines by distributing stress evenly throughout the rope hold area. This design reduces concentrated wear points and extends the life of both the shackle and your mooring rope. Ideal for permanent and seasonal mooring applications in freshwater and saltwater environments.

check out was fast and easy

Good

Thanks for ease of purchase.

Muy bueno

Quick Ship. Thanks. Low Prices.

It was easy...

Everything worked fine. 1st time buyer, I hope your shipping setup is as good as your website.

Ordering and checkout was easy with Amazon Pay.

Great service, best price available online and realistic shipping costs, Ordered 5PM Friday, shipped Monday , received Tuesday end of day. Beats driving to the local store. Highly recommended !!<br><br>RS Larchmont NY

Great prices & fast shipping.

I was told it would ship within 48 hours, when I called they told it was 24 business hours.. I think that they think we are morons... Price of items and chipping was really good.. Hope I get my stuff quickly..

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