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Polyform 21-554-162 A & F Series 1" Galvanized Steel Shackle with PVC Insert

Manufacturer

Polyform

<h3>Polyform US: Setting the Global Standard for Marine Protection</h3><p>For boaters who refuse to compromise on hull protection, <strong>Polyform US</strong> has spent decades earning a reputation as one of the most trusted names in marine fenders and buoys. Headquartered in Kent, Washington, Polyform US designs and manufactures its products right here in the United States — a commitment that shows in every detail, from material selection to the iconic blue rope-hold that has become a hallmark of the brand worldwide.</p><h3>A Legacy Built on the Water</h3><p>Polyform&apos;s story stretches back more than 70 years, during which it has supplied not just recreational boaters but commercial fishermen, marina operators, and even military and coast guard fleets. Whether tied up in a quiet freshwater slip or riding out the swells of a commercial fishing ground, Polyform products are engineered to perform where lesser gear fails. That global trust isn&apos;t accidental — it is the product of rigorous manufacturing standards, durable marine-grade vinyl construction, and an unwavering focus on even wall thickness and reinforced rope-holds across every product line.</p><h3>Fenders for Every Vessel Size</h3><p>At the core of the Polyform lineup are its industry-leading <a href="/7498-polyform-fenders-200396">boat fenders</a>, offered in multiple series to suit vessels of all sizes. The <strong>G-Series</strong> is the go-to all-around cylindrical fender for trailered boats and permanent moorings alike, while the <strong>F-Series</strong> steps up for larger vessels demanding serious hull protection. The <strong>HTM (Hole-Through-Middle) Series</strong> offers center-mount versatility for boats in the 30- to 40-foot range, and the rugged <strong>NF-Series</strong> is built as a single-piece heavy-duty fender with molded-in ribs for maximum abrasion resistance in high-stress docking environments like tidal areas and boat locks. For smaller crafts, the compact <strong>S-Series</strong> doubles as both a fender and a mooring buoy for PWCs and runabouts.</p><h3>Buoys for Marking, Mooring, and the Water Sports Course</h3><p>Beyond fenders, Polyform&apos;s <a href="/7498-polyform-mooring-fishing-buoys-200692">mooring and fishing buoys</a> are relied upon by mariners around the world. The legendary <strong>A-Series</strong> all-purpose buoy — the product that launched the Polyform brand — remains a staple for commercial fishermen, pot-and-trap operations, and general mooring use, praised for its ability to handle the most adverse conditions in ocean, sea, river, or lake environments. The <strong>CC-Series</strong> steps in for larger commercial and mooring applications where maximum buoyancy and durability are essential.</p><p>For water sports enthusiasts, Polyform also produces the <a href="/7498-polyform-slalom-buoys-200968">WS-1 Slalom Buoy</a>, which is commonly paired with the S-Series as a complete course-marker package for competitive and recreational slalom courses.</p><h3>Accessories That Complete Your Docking Setup</h3><p>Polyform rounds out its lineup with a full range of docking accessories. The <a href="/7498-polyform-fender-covers-200392">fender covers</a> — available in the purpose-built <strong>EFC Series</strong> woven polyester design — protect both your hull and your fenders from abrasion and UV degradation, extending the life of the entire system. To organize and secure your fenders while underway or at the dock, Polyform&apos;s <a href="/7498-polyform-fender-holders-200393">fender holders</a> keep everything neatly in place without the tangle of loose lines. Together, these accessories reflect Polyform&apos;s philosophy that reliable marine protection is a complete system — not just a single product.</p>

Part Number

21-554-162
09/16/2036 9:30 PM
Sale Price

$33.49

In Stock (10+)

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Usually delivered within 2 days

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Fitment guaranteed

Product Details

The Polyform 21-554-162 A & F Series shackle is a heavy-duty marine-grade attachment point designed for use with buoys, fenders, and mooring applications. This robust shackle features a 1/2" diameter galvanized steel construction that resists corrosion in harsh marine environments.

Key Features:

  • 1/2" diameter galvanized steel body for corrosion resistance and durability
  • 3/8" threaded pin for secure closure
  • 1-1/8" PVC plastic insert distributes load evenly across rope or line
  • Safe working load limit of 5,000 lbs
  • Reduces chafe and wear on rope fibers
  • Compatible with Polyform A and F series buoys and fenders

The integrated PVC insert is a key feature that extends the life of your mooring lines by distributing stress across the entire rope contact area, preventing concentrated wear points. This shackle is ideal for commercial and recreational marine applications where reliable, long-lasting hardware is essential.

Note: Always use this product within its rated capacity. Do not exceed the 5,000 lb safe working load limit.

Products specifications

Fits

A-1, LD-1, LD-2, LD-3, LD-4,<return/>F-2, F-3, F-4, F-5, F-6, F-7, F-8, F-10, F-11,

Size

1"

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