Series 50 All Purpose Block – Triple

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

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.

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

⚓ 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 .