Harken 306 38mm 1.5" Single High-Strength Thru-Deck Exit Block
HARKEN 306
Single Line/Wire High Strength Thru-Deck Block
Lightweight, low-friction wire blocks carry wire halyards and high-strength control lines on boats of all sizes. High-load composite bearings carry axial loads. Hardkote-anodized PTFE-impregnated sheaves provide strength and corrosion resistance.
25mm (1.00") wire blocks use low-friction thrust washers. 38mm (1.50") and 51mm (2.00") wire blocks feature side-load balls between the sheave and the side plate to minimize friction from unfair leads.
Use for:
Single Line/Wire High Strength Thru-Deck Block
Lightweight, low-friction wire blocks carry wire halyards and high-strength control lines on boats of all sizes. High-load composite bearings carry axial loads. Hardkote-anodized PTFE-impregnated sheaves provide strength and corrosion resistance.
25mm (1.00") wire blocks use low-friction thrust washers. 38mm (1.50") and 51mm (2.00") wire blocks feature side-load balls between the sheave and the side plate to minimize friction from unfair leads.
Use for:
- Wire halyards
- Vangs
- Control lines
| Mfg No. | Sheave Diameter |
Max Wire Diameter |
Max Line Diameter |
Max Working Load |
Breaking Load |
Cutout Size | Fasteners | Weight |
| 306 |
1-1/2" (38mm) |
1/8" (3mm) |
3/16" (5mm) |
1,500 Lbs (680kg) |
3,000 Lbs (1,361kg) |
17/32" x 2-5/16" (13 x 59mm) |
#10 (5mm) RH |
3.25 oz. (92g) |
Harken 306 38mm 1.5" Single High-Strength Thru-Deck Exit Block
Sale price$83.95
Regular price$95.15
Choose options
Harken 306 38mm 1.5" Single High-Strength Thru-Deck Exit Block
Sale price$83.95
Regular price$95.15