![Harken 16mm Block w/Swivel [417]](https://www.fisherywave.com/wp-content/uploads/2025/12/harken-16mm-block-w-swivel-417-vqvbprkt41757.webp)
Description
16mm Block with Swivel
The 16 mm is Harken’s® smallest block. It is perfect for small synthetic control lines found on high-tech dinghies. The patented bearing system uses stainless steel balls in a captive grooved race and has a 250 lb (113 kg) maximum working load.
Specifications:
- Sheave: 16mm / 5/8in.
- Length: 46mm / 1-13/16in.
- Weight: 18g / .63oz
- Shackle pin: 4mm / 5/32in
- Maximum line: 5mm / 7/32
- Maximum working load: 113kg/ 250lb
- Breaking load: 339kg / 750lb
![Ronstan Series 40 All Purpose Block – Single – Universal Head [RF41100]](https://www.fisherywave.com/wp-content/uploads/2025/12/ronstan-series-40-all-purpose-block-8211-single-8211-universal-head-rf41100-ujkhjlin92197.webp)
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