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Description
Series 40 All Purpose Block - Double Block - Full Swivel Head
All purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Head swivels freely.
Features:
- Exceptionally high working loads
- Low maintenance, long service life
- Self-lubricating sheave
- Slotted pin shackle eliminates fouled lines
- Two way head post
Applications:
- Mainsheet
- Halyard
- Vang
- Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')
Materials:
- U.V. stabilized Acetal sheaves
- Impact and U.V. resistant, fiber reinforced Nylon cheeks
- Grade 316 stainless steel bearing race
- Grade 316 stainless steel load strap and head fitting
Specifications:
- Sheave Ø: 40mm(1-9/16")
- Max. Rope Ø: 10mm(7/16")
- Pin Ø: 5mm(3/16")
- M.W.L.: 600kg(1,320lbs)
- B. L.: 1,200kg(2,650lbs)
- Weight: 135g(4.8oz)
Accessories
No accessories listed for this product.
Specifications
| SKU | RF41200 |
| UPC | 9316800557400 |
| Brand | Ronstan |
| Category | Sailing |
| Country of Origin | INDONESIA |
| Weight | 0.31 |
| Dimensions | 4 x 3 x 2 |
| Status | Active |
| Last Synced | 10/10/2026, 2:05:56 AM |
Compliance & Shipping
Returnable
Product Literature
No literature or manuals available for this product.
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Frequently Bought Together
Compare Key Features
| Feature |  Ronstan Series 40 All Purpose Block - Double Block - Full Swivel Head CURRENT |  Ronstan Series 30 Ball Bearing Orbit Block - Triple - Becket |  Harken 57mm Carbo Air Block w/Swivel |  Barton Marine Ratchet Block - 55mm |  Harken 40mm Carbo Block 90° Fixed Head |
|---|---|---|---|---|---|
| Price | $55.40 | $57.81 | $53.93 | $111.66 | $41.35 |
| Brand | Ronstan | Ronstan | Harken | Barton Marine | Harken |
| Condition | New | New | New | New | New |
| Availability | In Stock | In Stock | In Stock | In Stock | In Stock |
| Weight | 0.31 | 0.19 | 0.3 | 0.3 | 0.11 |
| Dimensions | 4 x 3 x 2 | 4 x 2 x 2 | 6 x 3 x 1 | 6 x 3 x 2 | 5 x 3 x 1 |
| SKU | RF41200 | RF35312 | 2600 | 90500 | 2659 |
| Country | INDONESIA | INDONESIA | UNITED STATES | — | UNITED STATES |
| View Item | View Item | View Item | View Item | View Item |
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$55.40