Vendor Shipping Details
This item will be fulfilled from the vendor. Delivery time varies – typically 2–3 weeks.
Restrictions: This item does not ship to a PO Box, APO, FPO, DPO or international address. Expedited shipping is not available.
West Marine will email you when your order ships from the vendor.
Truck Freight is used to ship items that exceed standard shipping limitations on weight and/or size. Delivery is only applicable within the contiguous United States. Additional shipping fees apply. Signature required for receipt of shipment.
The Harken 100 29mm Double Wire Bullet Block is a heavy-duty block with 250 pounds more load capacity than the light-duty 084 Double Block.
Designed for vangs, outhauls or shrouds where wire is used or for rope where loads are too high for regular bullet blocks. Roller bearings handle high loads better than ball bearings. Sheaves are PTFE-impregnated, Hardkote anodized aluminum for strength. They deliver dependable fast trim and release under high or low loads.
A range of styles lets these blocks adapt to almost all control line applications. Ideal for cunninghams, vangs, outhauls, traveler controls, spinnaker controls, barberhaulers, etc.
- Extremely popular double wire block found on sailboats of all sizes
- Used on many types of control systems
- Corrosion-resistant stainless steel straps reinforce these blocks
- Ball bearings, sheave and sideplates are UV stabilized
- Fast trim and release under load: Free-running ball bearings roll on flat races with minimal friction
- Sheave Diameter: 1 1/8" (29 mm)
- Max. Line Diameter: 5/16" (8 mm)
- Max. Working Load (MWL): 750 lb. (340 kg)
- Breaking Load: 2000 lb. (907 kg)
- Weight: 2.75 oz. (78 g)
- Length: 2 3/4" (70 mm)
- Shackle Pin Diameter: 3/16" (5 mm)
This article will help you prepare for passage making that is both safe and fun.
By Chuck Hawley and Tom Burden, Last updated 6/14/2019
This article reminds us to never exceed a fitting's Maximum Working Load (MWL) and provides a few points to consider when selecting blocks.
By Tom Burden, Last updated: 10/28/2019