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Harken  |  SKU: HS-103567

Harken 1 Ton Twing Block [3405]

$247.95 $281.05

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Returns

At Harbor Supply, we aim to ensure you’re completely satisfied with your purchase. If you need to return an item, you have 90 days from the date of delivery to initiate a return.

Eligibility for Returns:

To be eligible for a return:

  • The item must be in its original condition—unused, unworn, with all tags still attached, and in its original packaging.
  • You’ll need the receipt or proof of purchase.

Please note, returns must be authorized before sending any items back. Items returned without prior authorization will not be accepted.

Description

1 Ton Twing Block

The Twing block features a spring-loaded side opening mechanism for true one-handed rigging, even while wearing sailing gloves. Black anodized aluminum sideplates are edged with robust bumpers to protect the block, topsides, and deck. The sheave is aluminum rolling on a bearing system shared with Harken's existing 2.3T high-load snatch block. 

Features:

  • Side opening side plate - Easy to rig and remove from sheet
  • Spring loaded button release - Quick one-handed rigging
  • Anti-capsize bar - Keeps sheave aligned on sheet
  • ULC main bearing - Sheave turns smoothly under extreme loading
  • Sideload balls - Carry loads especially when the block is not aligned in light air
  • Thimble at pivot base - Use 1:1 or 2:1 up-down control
  • Machined aluminum inner sideplates - High strength, low weight
  • Soft polyurethane outer side plate bumpers - Protects block and deck

Uses:

  • Twing, tweaker control for code zero sheets
  • Can be used as a snatch block when combined with a soft shackle
  • Spinnaker sheet and guy control

Specifications:

  • Sheave Ø (mm): 38.5 mm
  • Sheave Ø (in): 1-1/2 in
  • Maximum line Ø (mm): 11 mm
  • Maximum line Ø (in): .43 in
  • Maximum working load (kg): 1000 kg
  • Maximum working load (lb): 2205 lb
  • Breaking load (kg): 2000 kg
  • Breaking load (lb): 4409 lb

Owner's Manual (pdf)

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