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Ronstan 80 mm Snatch Block with Trunnion Head

  • Trunnion Head, 3-1/8 " Sheave
  • Safe Working Load: 6610 lbs
  • Maximum Line Size 3/4"
  • Item #: 
    Model #: 
    Shipping Weight: 
    3.25 Lbs.
    List Price: 
    Note:  This item ships from the manufacturer.
    It typically ships within 2 business days  (more...)
    Status:   null Ships Direct


    Ronstan Single Snatch Block- Trunnion head
    Grade 316 stainless steel sheaves running on needle roller bearings deliver low friction performance and a long service life. An extra wide stainless steel frame extends to the full diameter of the sheave to prevent lines from becoming jammed between the sheave and cheeks. Sheaves are removable for easy maintenance and can be used with rope or wire. Trunnion snap shackles are standard for maximum articulation. An attachment point is provided for a shock cord retainer to hang the block from the lifelines.Trunnion snap shackle provides the same swivel action and offers additional articulation from side to side.


    • High strength
    • Secure latch mechanism
    • Soft resilient cheeks


    • Safe working load: 6610 lb (3000 kg)
    • Breaking load: 13230 lb (6000 kg)
    • Weight: 52.2oz (1480g)
    • Sheave diameter: 3-1/8" (80 mm)
    • Maximum line size: 3/4" (19 mm)


    • Removable spinnaker sheet deflector blocks for boats up to 13m (43ft)
    • Temporary sheeting point while changing sheets for boats up to 13m (43ft)
    • Temporary reefing block for boats up to 13m (43ft)
    • Spare or replacement block for general use on larger boats depending on line angle and load
    • Temporary outboard sheet lead for headsail trimming


    • Grade 316 Stainless Steel frame, load strap sheave and needle roller bearings
    • Soft, thermoplastic rubber cheeks
    • Investment cast Grade 15-5PH Stainless Steel snap shackle

    CA Prop65 warning
    WARNING: This product MAY expose you to chemicals, which are known to the State of California to cause cancer, birth defects and/or other reproductive harm. For more information go to

    Ronstan 45 mm Snatch Block
    Item #: 602448
  • 45 mm (1-3/4") Sheave Diameter
  • Safe Working Load: 3310 lbs
  • Maximum Line Size: 5/8"
  •  Include
    Model #:
    Schaefer Snatch Block With Delrin Sheave
    Item #: 602575
  • Maximum Line Size: 5/8", Safe Working Load: 2250 lbs
  • Typical Boat Size: To 27', Dimensions: 5-3/8 L x 2-3/8" W x 1-11/16 T
  • Sheave Diameter 1-7/8"
  •  Include
    Model #:
    Schaefer Padeye
    Item #: 603305
  • Type: Investment Cast, Round Base: 3" Diameter
  • Eye Width: 1-1/8", Eye Height 7/8"
  • Safe Working Load: 8500 lbs
  •  Include
    Model #:
    Lewmar Size 2 Snatch Block ( 80 mm Sheave )
    Item #: 606586
  • Single Snatch Block with Swivel Head, Color: Black
  • Safe Working Load: 3500 lbs Maximum Line Size: 5/8"
  • Material: Stainless Steel
  •  Include
    Model #:
    Lewmar Size 3 Snatch Block ( 80 mm Sheave )
    Item #: 606587
  • Single Snatch Block with Swivel Head, Color: Black
  • Safe Working Load: 4750 lbs Maximum Line Size: 5/8"
  • Material: Aluminum
  •  Include
    Model #:
    Wichard Toe Rail Padeye
    Item #: 607640
  • Type: Standard Toe Rail, Rail Edge Diameter: 9 - 13 mm, Rail Height: 40 mm
  • Working Load: 960 kg, Breaking Load: 3000 kg
  • Designed to Protect Toe Rails by Spreading the Load
  •  Include
    Model #:
    Wichard Forged Shackle Key
    Item #: 607644
  • Accepts Up To 1/2" Shackles
  • Includes Bottle Opener
  •  Include
    Model #:
    Davis Instruments Deluxe Rigging Knife
    Item #: 612768
  • Blade Type: Dura-Edged Straight, Includes 3" Marlin Spike, Key and Driver
  • Material: Stainless Steel
  • Blade Length: 2-1/2"
  •  Include
    Model #:
    McLube Sailkote High Performance Dry Lubricant
    Item #: 608710DRLQUA
  • Applications: Sails, Hulls, Rigging, Deck Hardware and Anything that Moves
  • Forms a Hard, Smooth, Ultra-Slick, Hydrophobic Dry Coating
  • Will Not Attract Dirt or Contaminants, Container: Quart
  •  Include
    Model #:
    Barton 48 mm Medium Snatch Block
    Item #: 600716
  • Safe Working Load: 1212 lbs
  • Maximum Line Size: 5/8"
  • Stainless Steel Snap
  •  Include
    Model #:
    90 401

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