DESCRIPTION
DESCRIPTION
Lightweight, low-friction wire blocks carry wire halyards and high-strength control lines on boats of all sizes.
Our Part # HAR310 | Mfr. Part # 310
FEATURES
FEATURES
- High-strength through-deck block.
- 51mm sheave diameter.
- Designed for wire rope applications.
- Efficient deck-mounted fairlead.
TECHNICAL INFORMATION
TECHNICAL INFORMATION
| Description | Imperial | Metric |
|---|---|---|
| Sheave | 2.0 in | 51.0 mm |
| Weight | 5.75 oz | 163.0 g |
| Maximum Wire | 3/16 in | 5.0 mm |
| Maximum Line | 1/4 in | 6.0 mm |
| Fasteners | 1/4 RH in | 6 RH mm |
| Mounting Hole Spacing | 3 11/16 in | 94.0 mm |
| Cutout | 5/9 x 2 7/8 in | 14.0 x 73.0 mm |
| Maximum working load | 2000.0 lb | 907.0 kg |
| Breaking load | 4000.0 lb | 1814.0 kg |
KNOWLEDGE BASE
KNOWLEDGE BASE
Harken Outhaul System Selection GuidePick the Harken outhaul layout and parts for your boat size: five systems (2:1, 4:1 cascade, 5:1, 6:1 and 2:1 furling.View Selection Guide →
Harken 302 Line / Wire Through-Deck Blocks — InstructionsWire and line sizes, working and breaking loads, fasteners, deck cut-out dimensions and care for the Harken 302, 306.View Manual →





