In Stock

Harken 25mm Wire Block H300

No reviews yet Write a Review
HAR 300
Ships in 3-4 Days
Current Stock:

Frequently Bought Together:

Harken 25mm Wire Block H300
Inc. Tax
Ex. Tax


Lightweight, low-friction wire blocks carry wire halyards and high-strength control lines on boats of all sizes.

  • Sheave: 25 mm / 1 in
  • Weight: 28 g / 1 oz
  • Shackle pin: 5 mm / 3/16 in
  • Maximum wire: 3/32 in / 2 mm
  • Maximum line: 4 mm / 5/32 in
  • Maximum working load: 454 kg / 1000 lb
  • Breaking load: 907 kg / 2000 lb


This fitting is commonly used and/or recommended for the following one design sailboat applications:

  • J/22 Vang Boom Block (x3)
  • Lightning Vang Block (x1)
  • Star Vang (x1)


Wire Block
25 mm

Product Reviews

Shipping & Returns

Delivery Info: Enjoy Free Standard Shipping on most orders* to the Continental United States over $99. Our Standard Shipping method utilizes USPS, UPS, and FedEx to send packages near and far. Oversize/Freight shipping (where applicable), Expedited Shipping (where available), and rates to other destinations will be calculated at checkout.

See our Shipping Page for more information (and exceptions).

Returns Info: Your 100% satisfaction is our goal - we want you to love your sailing gear, but if something doesn't work out, we accept returns on most new, unused items*. Returns can be made within 366 days (1 year + 1 day) of your original order date. Exceptions include (and are not limited to) cut line, Rig Shop products, special order items, numbered sailors, and items used or worn sailing.

See our Returns Page for more information.

Subscribe To Our Newsletter

Sign up for our newsletter to receive exclusive discounts, new product announcements, and upcoming sales.