System 15 - Standard Track, 600 mm, Screw size M4 Sheet the block is made from

the block is made from machined black anodized aluminium with Torlon® roller bearings for maximum performance under load

Ball bearings in stainless steel and a 2 mm / 550 mm Dyneema lashing included

The System 30 End Control Port/Cam is part of the System 30 deck hardware range

The 100mm Plain Bearing Cheek Block is designed for up to 4 ton working load

a smaller secondary sheave

System 15 - Standard Track, 600 mm, Screw size M4 Sheet the block is made fromThis is a 15 mm wide and 600 mm long standard track with holes for M4 fasteners. Hole spacing 50 mm. To be combined with System 15 cars and end stops. System 15 is used for dinghies and small keelboats up to approximately 22. System: 15 Profile: Standard Length: 600 mm W: 15 mm H: 9 mm Fasteners: M4 Comment: Hole spacing 50mm