System 42 - Standard Track, 4000 mm, Screw size M10 Automatic Ratchet The BBB60 Single Swivel Block

The BBB60 Single Swivel Block is a 60 mm ball bearing block with a swiveling shaft

30 mm x 3500 mm long standard track with holes for M6 fasteners

The stainless steel ball bearings provide smooth

Stainless steel ball bearings provide smooth

Designed to be tied directly onto a rigging point

System 42 - Standard Track, 4000 mm, Screw size M10 Automatic Ratchet The BBB60 Single Swivel Block42 mm x 4000 mm long standard track with holes for M10 fasteners. Hole spacing 100 mm. To be combined with System 42 cars and end stops. System 42 is used for large yachts. System: 42 Profile: Standard Length: 4000 mm W: 42 mm H: 22 mm Fasteners: M10 Comment: Hole spacing 100mm