Description
16mm Forkhead Block
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: 29mm / 1-1/8in.
- Weight: 11g / .38oz
- Maximum line: 5mm / 7/32in
- Maximum working load: 113kg/ 250lb
- Breaking load: 544kg / 1200lb

![Harken 16mm Forkhead Block [376]](https://www.bestmarinebattery.com/wp-content/uploads/2026/08/harken-16mm-forkhead-block-376.webp)
![Ronstan Wire Block - Tubular Rivet Head w/Removable Nylatron Sheave - 45mm (1-3/4") Sheave Diameter [RF103]](https://www.bestmarinebattery.com/wp-content/uploads/2026/08/ronstan-wire-block-tubular-rivet-head-w-removable-nylatron-sheave-45mm-1-3-4-she.webp)
![Ronstan Series 40 Ball Bearing Block - Double - Swivel Head [RF40200]](https://www.bestmarinebattery.com/wp-content/uploads/2026/08/ronstan-series-40-ball-bearing-block-double-swivel-head-rf40200.webp)


![Ronstan Series 40 Orbit BB Quin Block w/Swivel Shackle [RF48500]](https://www.bestmarinebattery.com/wp-content/uploads/2026/08/ronstan-series-40-orbit-bb-quin-block-w-swivel-shackle-rf48500.webp)


![Ronstan Series 50 All Purpose Block - Fiddle - Becket [RF51510]](https://www.bestmarinebattery.com/wp-content/uploads/2026/08/ronstan-series-50-all-purpose-block-fiddle-becket-rf51510.webp)