Series 40 High Load Block – Single
Features:
- Exceptionally high working loads
- Lightweight
- Cheek cut-outs for easy bearing maintenance
- Suitable for both rope or wire
- Captive Lock™ universal head
- Slotted pin shackle eliminates fouled lines
Ideal for high load applications. Wear resistant sheave material, in lightweight, self lubricating polymer, is suitable for use with rope or wire.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required
Applications:
- Halyards
- Backstays
- Vang
- Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)
Materials:
- Nylatron® sheave
- Grade 316 stainless steel load strap and head fitting
- Impact and U.V. resistant, fiber reinforced Nylon cheeks


⚓ Smooth Sailing Shipping
Enjoy FREE standard shipping on most orders over $250 within the continental U.S. (excl. heavy/oversized/hazardous items).
We ship via UPS, FedEx, and USPS . Orders are processed in 1–2 business days with typical delivery in 1–5 business days .
🧭 Track The Voyage
You’ll receive tracking info by email once your order ships. If your package is marked “delivered” but not received, please wait 48 hours then reach out to our team.
🛟 Hassle-Free Returns & Exchanges
Returns accepted within 30 days of delivery. Items must be unused and in original packaging.
- Mistaken or damaged cargo? We’ll handle return shipping.
- Changed your course? Return shipping is on you.
- Report defects or damage within 7 days for a free exchange.
💰 Anchor Your Refund
Refunds go back to your original payment method within 5–7 business days after inspection.
📨 Contact the Crew
Questions about your order? Drop anchor at sales@marineelec.com .
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