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30 Days Easy Return. We are the largest supplier of the most adaptable, personalized hardware in the industry. We work hard to ensure you're satisfied with our products.
WARNING: This Product May Contain Chemicals Known to the State of California to Cause Cancer or Reproductive Harm. To Learn More Visit P65Warnings.ca.gov
Features
- Lightweight blocks designed for moderate to high static and dynamic loads
- Ideal for handheld control lines
- Captive lock secures swivel at 0 or 90 or left to swivel freely
- Sliding acetal plain bearing on 316 stainless steel shaft handles high loads and maintains low friction
- Fiber reinforced nylon cheeks to add strength while reducing weight
- Self-lubricating, UV stable acetal sheave is strong and lightweight
- Grade 316 stainless steel load straps add strength
- Ideal for: Dinghy and small keelboat sheets, halyard tuning systems, backstay systems on dinghies and smaller keelboats, boom vangs (cascade systems)
Diameter
7/16 Inch or 11 mm
Type
Single
Weight
2.5 Ounces
Direction
Any
Safe Working Load
882 Pounds
Mount Type
Swivel Shackle
Ball Bearing
Plain Bearings
Becket
No Becket
Integral Cleat
No Integral Cleat
Ratchet
Non Ratcheting
Sheave Diameter
40 mm
Product Overview
General application plain-bearing blocks provide performance and value. A smooth and efficient block is critical to the conversation between sailor and boat especially for handheld control lines. Ronstan designed the Series 40 All-Purpose blocks to give dinghy and small keelboat sailors the feedback to detect subtle wind changes and sail as efficiently as possible. These lightweight blocks feature a durable, self-lubricating, UV stable acetal sheave that runs smoothly on a Grade 316 stainless steel shaft. Fiber reinforced nylon cheeks provide rigidity and strength and are beefed up with 316 stainless steel load straps. The included shackle features a screw pin with a low-profile head to prevent snagging on smaller lines. Get the messages your boat sends you though the lines by using efficient and smooth Ronstan Series 40 All-Purpose blocks. This 40mm single with shackle head is versatile and can be used for a wide range of applications. Great for halyard tuners, Cunninghams, dinghy sheets and more.