Skip to Product Info
    • Harken 1 Ton Twing Block 3405
    Sale!

    Harken 1 Ton Twing Block [3405]

    12% Off
    Sale Price $251.95 Regular Price $286.65
    Shipping calculated at checkout.

    Hurry up! Only 6 left

    Payment & Security

    Your payment is secure. We don’t store or see your card details.

    • Amazon
    • American Express
    • Apple Pay
    • Diners Club
    • Discover
    • Google Pay
    • Mastercard
    • PayPal
    • Shop Pay
    • Visa

    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)
    Product Specifications
    Oops, no results found~
    Documents
    User Manual Download
    Specification Sheet Download
    Safety Guide Download
    Service & Support

    Warranty

    This product is backed by a 12-month limited warranty, covering defects in materials and workmanship under normal use.

    Technical Assistance

    Our dedicated support team is available to assist with product setup, operation guidance, and troubleshooting. Contact us via email or phone for prompt service.

    Documentation & Downloads

    Access essential resources including the user manual, technical specifications, and safety instructions in our online support center.

    Replacement Parts & Accessories

    We offer a full range of genuine replacement parts, including batteries, chargers, and compatible accessories to ensure long-term performance.

    Training & Tutorials

    Browse our library of how-to videos and maintenance tips to get the most out of your cordless drill.

    FAQs

    Find quick answers to common questions

    Product & Usage

    1. Is your gear authentic and warranty-backed?

    Yes — we are an authorized US dealer for 300+ marine electronics brands. Every order ships with the manufacturer’s full warranty.

    2. Are these products beginner-friendly?

    Yes. Our products are designed for both seasoned boaters and first-time owners. Each unit ships with a manufacturer manual, and we’re happy to answer setup questions over email.

    3. Are these products built for marine conditions?

    Yes. Marine electronics are engineered for saltwater spray, vibration, and weather. Check the product specs for IPX waterproof rating and saltwater certifications.

    Maintenance & Accessories

    1. What maintenance does marine electronics require?

    Rinse with fresh water after saltwater exposure, store in a dry place, and follow your manufacturer’s cleaning and storage instructions.

    2. Can I buy replacement parts and accessories separately?

    Yes — we carry replacement parts, mounts, transducers, cables, and accessories for the brands we stock.

    3. Do you provide product manuals or installation guides?

    Every product ships with the original manufacturer’s manual. Digital copies and detailed installation guides are typically available on the brand’s website.

    Warranty & Guarantee

    1. Does my purchase include a warranty?

    Yes — every order includes the full manufacturer warranty. Coverage length varies by brand (typically 1–3 years for Garmin, Lowrance, Raymarine, Simrad, Humminbird, Furuno, and others).

    2. How do I register for warranty coverage?

    Register directly with the manufacturer using your unit’s serial number. Manufacturer registration is the fastest path to warranty support if you ever need it.

    3. What does the manufacturer warranty cover?

    Defects in materials and workmanship under normal use. Damage from impact, improper installation, or saltwater corrosion (without protection) may be excluded. Check brand-specific terms in your unit’s documentation.

    4. Can I extend the warranty?

    Some manufacturers offer extended-coverage programs through their registration portals. We don’t sell third-party warranty programs.

    Purchasing & Support

    1. How fast does my order ship?

    Orders placed before 4pm EST Monday–Friday ship the same business day via UPS from our NJ or FL warehouses. Continental US delivery typically takes 3–7 business days for Economy.

    2. Do you offer bulk or fleet pricing?

    Yes — we offer volume pricing for fleet operators, marinas, dealers, and commercial customers. Email support@marineelectronicsdepot.com with your needs.

    3. How can I contact support?

    Email support@marineelectronicsdepot.com or call during business hours (Mon–Fri 9am–5pm ET). We’re happy to help with pre-purchase questions, order status, or post-sale support.

    Can’t find your answer?

    Feel free to reach out to us!

    Recently viewed

    Last seen items