{"product_id":"304-stainless-steel-swivel-pulley-block-single-double","title":"A2Stainless Steel Single Double Pulley Rope Pully Lifting Wheel Swivel Block 304","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003e304 Stainless Steel Swivel Pulley Block — Reliable Rope Lifting for Rigging \u0026amp; DIY Projects\u003c\/h2\u003e\n\u003cp\u003eWhen your rope system needs a dependable redirect point — whether you're rigging a sailboat, setting up a block-and-tackle hoist, or building a DIY zip line — a weak or corroding pulley is the last thing you want. These 304 stainless steel swivel pulley blocks are built for makers, riggers, small workshops, and outdoor enthusiasts who need a compact, load-bearing wheel that won't seize up or rust out over time.\u003c\/p\u003e\n\u003cp\u003eEach pulley block is machined from 304-grade stainless steel, offering a smooth-rolling sheave wheel housed in a swivel body that rotates freely to reduce rope twist. Available in single and double sheave configurations, sizes range from M15 through M100 (approximately 0.59 in to 3.94 in), sold individually or in value packs of 2 or 5 pieces.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include marine rope rigging and sailboat block systems, overhead lifting and block-and-tackle mechanical advantage setups, and DIY cable management or load-redirect applications in workshops and garages. Long-tail search terms like \"stainless steel swivel block pulley M20\", \"304 SS double sheave lifting pulley\", and \"corrosion-resistant rope pulley for rigging\" describe exactly what this product delivers.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e🔗\u003c\/span\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Suitable for wire rope and fiber rope. Match the sheave groove diameter to your rope diameter. Single pulley for simple redirects; double pulley for block-and-tackle mechanical advantage systems.\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These 304 Stainless Steel Swivel Pulley Blocks\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-list\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\n\u003cstrong\u003e304 Stainless Steel Construction\u003c\/strong\u003e\n\u003cp\u003eThe body, sheave, and swivel hook are fabricated from 304-grade stainless steel, delivering strong corrosion resistance in wet, marine, and outdoor environments without surface coatings that can chip or peel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e\n\u003cstrong\u003eFull 360° Swivel Hook\u003c\/strong\u003e\n\u003cp\u003eThe swivel bail rotates freely under load, preventing rope twist accumulation and allowing the block to self-align with the direction of pull — critical for multi-directional rigging setups.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚖️\u003c\/span\u003e\n\u003cstrong\u003eSingle \u0026amp; Double Sheave Options\u003c\/strong\u003e\n\u003cp\u003eChoose a single-sheave block for straightforward rope redirection, or a double-sheave block to create a block-and-tackle system that multiplies your mechanical advantage for heavier loads.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\n\u003cstrong\u003eWide Size Range M15–M100\u003c\/strong\u003e\n\u003cp\u003eSeven size options from M15 (~0.59 in) to M100 (~3.94 in) cover light-duty rope work through substantial lifting applications, letting you match the block to your rope diameter and load requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\n\u003cstrong\u003eFlexible Pack Quantities\u003c\/strong\u003e\n\u003cp\u003eAvailable in 1-piece, 2-piece, and 5-piece packs so you can stock exactly what your project needs — whether it's a single replacement block or a complete multi-point rigging kit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛠️\u003c\/span\u003e\n\u003cstrong\u003eSmooth-Rolling Sheave Wheel\u003c\/strong\u003e\n\u003cp\u003eThe sheave wheel is designed to minimize rope friction and wear, extending the service life of both the pulley and your rope — especially important in repeated-cycle lifting or tensioning applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — Stainless Steel Swivel Pulley Block\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003e304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eSingle Pulley \/ Double Pulley (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003eM15 \/ M20 \/ M25 \/ M32 \/ M50 \/ M75 \/ M100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApproximate OD Range\u003c\/th\u003e\n\u003ctd\u003e15 mm – 100 mm (0.59 in – 3.94 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSwivel Feature\u003c\/th\u003e\n\u003ctd\u003e360° rotating swivel bail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSheave Groove\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWorking Load Limit\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003eNatural brushed stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack Quantity\u003c\/th\u003e\n\u003ctd\u003e1 Pcs \/ 2 Pcs \/ 5 Pcs (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRope Compatibility\u003c\/th\u003e\n\u003ctd\u003eWire rope and fiber rope\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eRigging, lifting, marine, DIY hoisting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the right size pulley block for my rope?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eMatch the sheave groove diameter to your rope's outer diameter. As a general rule, the sheave groove should be slightly larger than the rope diameter to allow smooth travel without excessive play. For example, an M20 block is typically suited to ropes in the 4–6 mm range, while an M50 block accommodates heavier rope. Check the variant listing or contact us to confirm the groove size for your specific size selection.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the working load limit (WLL) for each size?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eWorking load limits vary by size and configuration (single vs. double sheave). The double-sheave block used in a block-and-tackle arrangement effectively multiplies mechanical advantage, reducing the force needed to lift a given load. Specific WLL figures are listed in the variant details. If you need confirmation for a safety-critical application, please contact us before ordering.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs 304 stainless steel suitable for marine or saltwater use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003e304 stainless steel offers good corrosion resistance in most outdoor and freshwater environments. For prolonged saltwater immersion or highly aggressive marine environments, 316 stainless steel is generally recommended. These blocks are well-suited for occasional marine use, coastal rigging, and freshwater applications. Rinse with fresh water after saltwater exposure to extend service life.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between a single pulley and a double pulley?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eA single-sheave pulley redirects a rope from one direction to another, useful for changing the angle of pull. A double-sheave pulley has two wheels side by side, allowing you to run two rope lines through one block — typically used in block-and-tackle systems to create mechanical advantage and reduce the effort needed to lift heavy loads.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan these pulley blocks be used with wire rope?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. These blocks are compatible with both wire rope and fiber rope. Ensure the wire rope diameter matches the sheave groove size for your selected variant. Using an oversized wire rope can cause binding and accelerated wear on both the rope and the sheave.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes the swivel rotate under load, and is it lockable?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe swivel bail is designed to rotate freely to self-align with the direction of pull and prevent rope twist. It is not a locking swivel — it will continue to rotate under load. If your application requires a fixed (non-rotating) attachment point, a standard eye bolt or fixed-bail block would be more appropriate.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I decide between ordering 1, 2, or 5 pieces?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eOrder 1 piece for a single redirect point or replacement. Order 2 pieces if you're building a basic block-and-tackle system (one fixed block, one moving block). Order 5 pieces for multi-point rigging setups, workshop installations with several anchor points, or to keep spares on hand for ongoing projects. The 5-piece pack offers the best per-unit value.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-cta\"\u003e\n🛒 Select your size, type, and pack quantity above, then add to cart.\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I choose the right size pulley block for my rope?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Match the sheave groove diameter to your rope's outer diameter. The sheave groove should be slightly larger than the rope diameter. For example, an M20 block suits ropes in the 4–6 mm range, while an M50 block accommodates heavier rope. Check the variant listing or contact us to confirm the groove size.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the working load limit (WLL) for each size?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Working load limits vary by size and configuration. Specific WLL figures are listed in the variant details. Contact us before ordering for safety-critical applications.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is 304 stainless steel suitable for marine or saltwater use?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"304 stainless steel offers good corrosion resistance for most outdoor and freshwater environments. For prolonged saltwater immersion, 316 stainless steel is generally recommended. Rinse with fresh water after saltwater exposure to extend service life.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the difference between a single pulley and a double pulley?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"A single-sheave pulley redirects a rope from one direction to another. A double-sheave pulley has two wheels side by side, used in block-and-tackle systems to create mechanical advantage and reduce lifting effort.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can these pulley blocks be used with wire rope?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. These blocks are compatible with both wire rope and fiber rope. Ensure the wire rope diameter matches the sheave groove size for your selected variant.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Does the swivel rotate under load, and is it lockable?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The swivel bail rotates freely to self-align with the direction of pull and prevent rope twist. It is not a locking swivel. For a fixed attachment point, use a standard eye bolt or fixed-bail block.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I decide between ordering 1, 2, or 5 pieces?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Order 1 piece for a single redirect or replacement. Order 2 pieces for a basic block-and-tackle system. Order 5 pieces for multi-point rigging setups or to keep spares on hand. The 5-piece pack offers the best per-unit value.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"M15 \/ Single pulley \/ 304 Stainless Steel \u0026 1Pcs","offer_id":52446685298962,"sku":"GLFBNHHZYBXG0271x1","price":5.92,"currency_code":"USD","in_stock":true},{"title":"M20 \/ Single pulley \/ 304 Stainless Steel \u0026 1Pcs","offer_id":52446685331730,"sku":"GLFBNHHZYBXG0272x1","price":7.74,"currency_code":"USD","in_stock":true},{"title":"M25 \/ Single pulley \/ 304 Stainless Steel \u0026 1Pcs","offer_id":52446685364498,"sku":"GLFBNHHZYBXG0273x1","price":12.36,"currency_code":"USD","in_stock":true},{"title":"M32 \/ Single pulley \/ 304 Stainless Steel \u0026 1Pcs","offer_id":52446685397266,"sku":"GLFBNHHZYBXG0274x1","price":16.12,"currency_code":"USD","in_stock":true},{"title":"M50 \/ Single pulley \/ 304 Stainless Steel \u0026 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