Ronstan Series 50 All Purpose Triple Universal Head BlockExceptionally high working loads
Low maintenance, long service life
Slotted pin shackle eliminates fouled lines
Lockable swiveling head post
Snap fit removable becket pin
Sheave Ø - 2 in.
Max. Rope Ø - 1/2 in.
Max. Cable Ø - in
Pin Ø - 1/4 in.
M.W.L. - 2650 lb.
B. L. - 5290 lb.
Weight - 13.0 oz.
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.
Mainsheet and halyard applications, vang and spinnaker control lines on boats to 10m (33ft)
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
Impact and UV resistant, fiber reinforced Nylon cheeks