SeaSure Blocks offers a versatile range of marine-grade blocks designed for various applications, including high-load uses such as lifting systems and garage door mechanisms.
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1-2 weeks delivery time SeaSure stainless steel railing saddle brackets and stanchion clips provide secure mounting points on round marine tubing. The range includes versions for 25 mm and 32 mm (1.25") tubes and is suitable for attaching platforms, lifebuoys, engine mounts, antennas and other onboard fittings. Both variants are supplied in packs of 10 pieces.
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$ 124.48
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1-2 weeks delivery time SeaSure deck eyes are manufactured from 316 stainless steel and precision-finished to remove sharp edges and burrs for durable marine use. The range includes multiple sizes with heights from 5 mm to 17 mm, hole-centre spacing from 24 mm to 45 mm and fixing hole diameters from 3.5 mm to 4.5 mm. Depending on the variant, the deck eyes are supplied individually in blister packaging or in packs of 10 or 20 pieces.
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$ 2.75
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SeaSure 25.14 Webbing Plate, 43 mm Hole Centres, for Straps up to 50 mm, 316 Stainless Steel, 20 pcs
1-2 weeks delivery time SeaSure 25.14 is a webbing plate manufactured from marine-grade 316 stainless steel for securing straps to flat surfaces. The plate measures 90 x 68 mm with a material thickness of 2 mm and 43 mm hole centres. It is suitable for suspension straps, batteries, life rafts and similar onboard fastening applications, with a maximum strap width of 50 mm. Supplied in a pack of 20 pieces.
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$ 75.37
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1-2 weeks delivery time SeaSure stainless steel lacing hooks are compact marine fittings designed for securing and lacing ropes, covers and related onboard equipment. The range includes a short 16 x 25 mm version and a long 25 x 25 mm version, both manufactured from stainless steel and supplied in packs of 20 pieces.
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$ 52.51
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1-2 weeks delivery time SeaSure stainless steel lacing hooks are marine fastening fittings available in two configurations: a long lacing hook and a heavy-duty short lacing hook. Both versions are manufactured from stainless steel and supplied in packs of 20 pieces, providing compact attachment options for lacing, covers and related onboard fastening applications.
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$ 61.16
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1-2 weeks delivery time SeaSure 25.26 is a halyard lock manufactured from 316 stainless steel and designed specifically for dinghies with external halyards. The fitting measures 12.7 x 5 mm and provides a compact locking point for the halyard system. Supplied in a pack of 10 pieces.
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$ 56.69
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1-2 weeks delivery time SeaSure 25.22 is a stainless steel swivel shackle fitted with removable 4.8 mm clevis pins. The fitting has a 38 mm jaw width and an approximate breaking load of 450 kg, providing a compact rotating connection for marine rigging and hardware applications.
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$ 37.20
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1-2 weeks delivery time SeaSure 25.47 is a toe strap buckle and mounting plate designed for webbing up to 50 mm wide. Manufactured from 316 stainless steel for strength and corrosion resistance, it is suitable for toe straps, trapeze and safety harnesses, life jackets and other onboard webbing tension applications. Supplied in a pack of 5 pieces.
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$ 75.21
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1-2 weeks delivery time SeaSure 25.48 is a mounting plate designed for 50 mm sliding bar buckles, specifically SeaSure 06.78 and 06.80. Manufactured from marine-grade 316 stainless steel for strength and corrosion resistance, it is suitable for trapeze harnesses, safety harnesses, life jackets, toe straps and other onboard webbing tension applications. Supplied in a pack of 10 pieces.
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$ 91.90
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1-2 weeks delivery time SeaSure 25.54 is a compact dinghy drum furler designed for smooth and reliable jib furling. The fully enclosed drum helps prevent the furling line from slipping or jamming, while the stainless steel thrust bearing allows operation under forestay tension. The unit has a 69 mm drum diameter, weighs 116 g and has a breaking load of 1000 kg. It can accommodate up to 3.5 m of 3 mm line and is suitable for sails with a foot length of approximately 3 m.
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$ 220.24
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1-2 weeks delivery time SeaSure 25.57 is a dinghy furler top swivel precision-machined from solid 316 stainless steel rod. It uses stainless steel balls running on bronze seats to reduce friction and includes anti-chafe inserts to protect the sail. This 25.57 version has a 4 mm slot for standard halyards, weighs 53 g and has a breaking load of 1000 kg.
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$ 155.89
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1-2 weeks delivery time SeaSure 25.70 Infinity Furler is a lightweight continuous line furler for small dinghies, catamarans and inflatable boats. It combines a 316 stainless steel central column with a 3D-printed outer casing and drum designed to reduce rope slip and overall weight. The furler weighs 135 g, accepts 4–7 mm rope and has a breaking load of 1000 kg.
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$ 244.46
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1-2 weeks delivery time SeaSure 316 stainless steel clevis pins are designed for strong, corrosion-resistant connections in marine, rigging and mechanical applications. The range covers pin diameters from 4.75 mm to 15.9 mm and effective lengths from 10 mm to 57 mm, with bulk packs and individual blister-packed versions available depending on size. All stated lengths refer to the effective pin length.
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$ 6.13
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1-2 weeks delivery time SeaSure 316 stainless steel ring pins provide a durable, corrosion-resistant solution for replacing older spline-style retaining pins and locking rings. The range includes 9 mm, 16 mm, 19 mm and 25 mm sizes, with pack quantities of 20 or 100 pieces depending on the variant.
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$ 63.70
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1-2 weeks delivery time SeaSure 36.08.110BH is a big head dropnose pin designed for secure marine fittings and rigging connections. It has an 8 mm pin diameter and 110 mm length, with a large head for convenient handling. Supplied individually.
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$ 39.74
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1-2 weeks delivery time SeaSure clamping brackets with a single attachment point are designed for mounting extenders and swim ladders in marine applications. The range is available for 19 mm, 22 mm and 25 mm tube sizes, providing a secure and stable attachment point for compatible fittings.
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$ 4.73
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1-2 weeks delivery time SeaSure stainless steel drop nose pins are designed for secure fastening in marine, rigging and technical applications. The pins are turned from stainless steel bar and use a transverse rotating end with a locking mechanism to help prevent accidental loosening and keep the pin centred. Available in 5 mm, 6 mm, 8 mm, 10 mm and 12 mm diameters with effective lengths from 15 mm to 120 mm. A groove around the head allows attachment of a retaining line or steel wire.
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$ 35.11
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1-2 weeks delivery time SeaSure jib hanks are white nylon snap-on sliders designed for attaching tarpaulins, splash sails, curtains and similar materials to rails or supporting lines. The snap-on design allows quick fitting, removal and repositioning. The range includes 37 mm and 45 mm sizes, with pack quantities of 20 or 100 pieces depending on the selected variant.
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$ 52.51
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1-2 weeks delivery time SeaSure snap close shackles are white nylon snap-on fasteners with stainless steel screws, designed for securing splash sails and tarpaulins to sea rails and for hanging curtains, tools and other items over wire. The range includes 37 mm, 47 mm and 58 mm sizes, with pack quantities of 20 or 100 pieces.
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$ 42.66
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1-2 weeks delivery time SeaSure 07.90RG FLO Tell Tales are sail airflow indicators supplied as a set of three red and three green telltales. The aerofoiled teardrop bodies are manufactured from glass-filled nylon, while the rounded top holds the wool approximately 6 mm away from the sail to help reduce sticking when wet. Developed by former America’s Cup designer Derek Clark.
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$ 37.63
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What are the key features of the SeaSure general purpose block and how does it perform in marine environments?
The SeaSure general purpose block, part of the 25mm bearing block range, is designed for high-load applications, making it ideal for use with abrasive ropes and systems requiring reliable performance. Featuring robust construction with steel side plates and rivets, the block ensures durability and smooth operation in marine environments. Its versatile design allows it to be used in various applications, from rigging systems to lifting mechanisms, offering efficient performance even under demanding conditions.
How do customer reviews reflect the durability and performance of SeaSure blocks in different marine environments?
Customer reviews highlight the durability and performance of SeaSure blocks, particularly the 25mm plain bearing block, which is praised for its robust construction, including features like steel side plates and rivets with an arnite coating. Reviewers consistently note how well these blocks handle high loads, even when used with abrasive ropes in demanding marine environments. The positive feedback reflects their reliability in both recreational and industrial applications, with users appreciating their smooth operation and resistance to harsh conditions like saltwater and UV exposure.
How does the plastic construction of SeaSure blocks compare to other materials in terms of durability and strength?
The plastic construction of SeaSure blocks offers a lightweight and cost-effective solution while maintaining strong durability for many marine applications. Compared to traditional materials like metal, plastic blocks are resistant to corrosion from saltwater and are less prone to rust, making them ideal for extended use in harsh marine environments. While plastic blocks may not have the same tensile strength as stainless steel, their design and use in systems such as high-load applications and abrasive rope handling ensure reliable performance when properly selected.