
This item is currently out of stock.
Special order from Ronstan — Estimated 2–4 weeks.
Description
Series 50 All Purpose Block - Double - Becket
Features:
- Exceptionally high working loads
- Low maintenance, long service life
- Self-lubricating Acetal polymer sheave ensures low friction and extreme durability
- Slotted pin shackle eliminates fouled lines
- Lockable swiveling head post
- Snap fit removable becket pin
- Spare parts - RF51010 Replacement Becket Pin, RF151 shackle
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 can be locked at 0° or 90° by engaging the grub screw in either the 0 or 90 degree position. Becket pin is removable so line can be spliced prior to fitting and is ingeniously locked into position without the use of a clevis pin, split ring or tool
Applications:
- Mainsheet and halyard applications, vang and spinnaker control lines on boats to 10m (33ft)
- S60 - on boats up to 12m (40ft)
Materials:
- Grade 316 stainless steel load strap
- Impact and UV resistant, fiber reinforced Nylon cheeks
Accessories
No accessories listed for this product.
Specifications
| SKU | RF51210 |
| UPC | 9316800241255 |
| Brand | Ronstan |
| Category | Sailing |
| Country of Origin | — |
| Weight | 0.6 |
| Dimensions | 5 x 3 x 2 |
| Status | Active |
| Last Synced | 10/8/2026, 2:06:22 AM |
Compliance & Shipping
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 - Becket CURRENT | ![]() Ronstan Series 30 Ball Bearing Orbit Block - Triple - Becket | ![]() Harken 57mm Carbo Air Block w/Swivel | ![]() Barton Marine Ratchet Block - 55mm | ![]() Harken 16mm Block |
|---|---|---|---|---|---|
| Price | $97.52 | $57.81 | $53.93 | $111.66 | $17.21 |
| Brand | Ronstan | Ronstan | Harken | Barton Marine | Harken |
| Condition | New | New | New | New | New |
| Availability | Out of Stock | In Stock | In Stock | In Stock | In Stock |
| Weight | 0.6 | 0.19 | 0.3 | 0.3 | 0.1 |
| Dimensions | 5 x 3 x 2 | 4 x 2 x 2 | 6 x 3 x 1 | 6 x 3 x 2 | 3 x 2 x 1 |
| SKU | RF51210 | RF35312 | 2600 | 90500 | 404 |
| Country | — | INDONESIA | UNITED STATES | — | UNITED STATES |
| View Item | View Item | View Item | View Item | View Item |
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