Schaefer 5 Series Blocks

Mainsheet Systems: Boats to 28′ (8.5m)
Halyard Leads: Boats to 28′ (8.5m)
Genoa Leads: Boats to 28′ (8.5m)
Control Lines: Boats to 36′ (11m)
Common Specs: Sheave Diam: 2″ (51mm) – Sheave Width 9/16″ (14mm) – Max Line Diam: 7/16″ (11mm) – Pin Diam: 1/4″ (6mm) – SWL Aluminum/Stainless 1750 lbs (795kg) – SWL Ball Bearing: 1500 lbs (680kg)

Schaefer’s 5 Series Blocks offer small to medium-sized cruising and racing yachts an extremely high strength/weight ratio resulting in a highly refined and reliable block. Schaefer’s versatile Universal Head design has a three-way built-in locking feature and accepts “universal” adapters for custom mounting. Schaefer offers you the choice of brilliant Stainless Steel or Hardcoat Anodized Aluminum cheeks with UV protected Delrin™ or Delrin™ Ball Bearing sheaves. 5 Series Blocks provide you with extreme durability and versatility


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  • schaefer 504-38

    Schaefer 5 Series Utililty Block

    $117.99
    : $145.55 (19 %)

    Schaefer offers several utility and collar post blocks to solve a variety of lead problems. Our Utility style blocks offer a removable ferrule design for quick and strong attachment to a wide variety of fittings. The 505-20 and 705-20 include a collar post for easy attachment to mast collars. All of our utility blocks are…

  • schaefer 705-20

    Schaefer 5 Series Utility Block W/Mast Collar Pin

    $161.55
    : $203.40 (21 %)

    Schaefer offers several utility and collar post blocks to solve a variety of lead problems. Our Utility style blocks offer a removable ferrule design for quick and strong attachment to a wide variety of fittings. The 505-20 and 705-20 include a collar post for easy attachment to mast collars. All of our utility blocks are…

  • schaefer 504-25

    Schaefer 5 Series-2″ Double – Aluminum

    $183.38
    : $230.90 (21 %)

    5 Series blocks offer small to medium sized cruising and racing yachts an extremely high strength/weight ratio resulting in a highly refined and reliable block. Our versatile universal head design has a three way built in locking feature and accepts Schaefer “universal” adapters for custom mounting. 5 series blocks are offered with Aluminum cheeks and…

  • schaefer 506-25

    Schaefer 5 Series-2″ Double – Aluminum, Ball Bearing

    $160.38
    : $349.99 (54 %)

    5 Series blocks offer small to medium sized cruising and racing yachts an extremely high strength/weight ratio resulting in a highly refined and reliable block. Our versatile universal head design has a three way built in locking feature and accepts Schaefer “universal” adapters for custom mounting. 5 series blocks are offered with Aluminum cheeks and…

  • schaefer 505-25

    Schaefer 5 Series-2″ Double – Stainless

    $220.77
    : $277.95 (21 %)

    5 Series blocks offer small to medium sized cruising and racing yachts an extremely high strength/weight ratio resulting in a highly refined and reliable block. Our versatile universal head design has a three way built in locking feature and accepts Schaefer “universal” adapters for custom mounting. 5 series blocks are offered with Aluminum cheeks and…

  • schaefer 504-35

    Schaefer 5 Series-2″ Double Becket – Aluminum

    $207.77
    : $261.60 (21 %)

    5 Series blocks offer small to medium sized cruising and racing yachts an extremely high strength/weight ratio resulting in a highly refined and reliable block. Our versatile universal head design has a three way built in locking feature and accepts Schaefer “universal” adapters for custom mounting. 5 series blocks are offered with Aluminum cheeks and…

  • schaefer 505-35

    Schaefer 5 Series-2″ Double Becket – Stainless

    $230.18
    : $289.80 (21 %)

    5 Series blocks offer small to medium sized cruising and racing yachts an extremely high strength/weight ratio resulting in a highly refined and reliable block. Our versatile universal head design has a three way built in locking feature and accepts Schaefer “universal” adapters for custom mounting. 5 series blocks are offered with Aluminum cheeks and…

  • schaefer 504-45

    Schaefer 5 Series-2″ Fiddle – Aluminum

    $156.24
    : $196.75 (21 %)

    5 Series blocks offer small to medium sized cruising and racing yachts an extremely high strength/weight ratio resulting in a highly refined and reliable block. Our versatile universal head design has a three way built in locking feature and accepts Schaefer “universal” adapters for custom mounting. 5 series blocks are offered with Aluminum cheeks and…

  • schaefer 505-45

    Schaefer 5 Series-2″ Fiddle – Stainless

    $179.24
    : $226.35 (21 %)

    5 Series blocks offer small to medium sized cruising and racing yachts an extremely high strength/weight ratio resulting in a highly refined and reliable block. Our versatile universal head design has a three way built in locking feature and accepts Schaefer “universal” adapters for custom mounting. 5 series blocks are offered with Aluminum cheeks and…

  • schaefer 504-55

    Schaefer 5 Series-2″ Fiddle Becket – Aluminum

    $178.34
    : $224.40 (21 %)

    5 Series blocks offer small to medium sized cruising and racing yachts an extremely high strength/weight ratio resulting in a highly refined and reliable block. Our versatile universal head design has a three way built in locking feature and accepts Schaefer “universal” adapters for custom mounting. 5 series blocks are offered with Aluminum cheeks and…

  • schaefer 505-55

    Schaefer 5 Series-2″ Fiddle Becket – Stainless

    $203.49
    : $256.20 (21 %)

    5 Series blocks offer small to medium sized cruising and racing yachts an extremely high strength/weight ratio resulting in a highly refined and reliable block. Our versatile universal head design has a three way built in locking feature and accepts Schaefer “universal” adapters for custom mounting. 5 series blocks are offered with Aluminum cheeks and…

  • schaefer 504-76

    Schaefer 5 Series-2″ Fiddle Becket Cam – Adjustable Cam Angle, Aluminum

    $337.19
    : $424.50 (21 %)

    5 Series blocks offer small to medium sized cruising and racing yachts an extremely high strength/weight ratio resulting in a highly refined and reliable block. Our versatile universal head design has a three way built in locking feature and accepts Schaefer “universal” adapters for custom mounting. 5 series blocks are offered with Aluminum cheeks and…

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