Schaefer Marine Swivel Deck Block

Features American Metric Description Stand-Up Swivel Backing Plate 97 - 48 Sheave Ø 2 in 51 mm Max Line 7/16 in 11 mm D*** 2 7/8 in 73 mm Height 4 1/32 in 103 mm H2 2 3/32 in 54 mm Fastener Size (4) 10 RH 5 mm C/C 1 13/32 in 36 mm Safe Working Load 1750 lb 790 kg Weight SS 9 oz 255 g   Excellent for fixed position halyard, sheet or control line fairleads. Block swivels 360°, tilts in all directions and is supported by a heavy gauge S.S. sprint to prevent deck contact. Large Ø base helps distribute loads to a larger surface area than other smaller designs.  New M-Series style feature Aluminum sheaves with Torlon™ rollers and Delrin™ ball bearings for superior strength and low-friction. Machined center allows the hub to be used as a becket.