Double Alum. Block/ Universal Head

Length: 148 mm (5 27/32 in)
Overall Thickness: 51 mm (2 in)
Sheave Dia.: 60 mm (2 3/8 in)
Sheave Width: 19 mm (3/4 in)
Max Line Dia.: 13 mm (1/2 in)
Pin Dia.: 6 mm (1/4 in)
Safe Working Load Aluminum: 1020 kg (2250 lb)
Weight: 482 g (1 lb 1 oz)

7 Series Blocks offer medium sized cruising and racing yachts Delrin™ and Delrin™ Ball Bearing sheave Blocks with a stunning combination of strength and performance. Available with highly polished Stainless Steel or Black Hardcoat Anodized Aluminum cheeks that are reinforced with large Stainless Steel V-Straps and head posts.

This robust yet lightweight construction produces an exceptionally strong block built to perform well past other plastic designs. Schaefer's use only the toughest, high-impact material available so you'll be sailing while others are fixing failed gear. All of Schaefer's 7 Series Blocks work with convenient Universal Adapters and contain Schaefer's three-way head that allows for free swiveling or front/side set positions.

Common Specifications:
Cheeks are constructed of tumbled and polished Stainless Steel or Hardcoat Anodized Aluminum for maximum resistance to corrosion and cracking common in Plastic designs. Sheaves are made of high impact Delrin™ or Delrin™ running on Delrin™ Ball Bearings.

Our Part # SCH70425 | Schaefer Part # 704-25