System 30 - Standard Track, 3500 mm, , Screw size M6 Through Deck making this block ideal for

making this block ideal for heavy load applications such as mainsail and control lines in dynamic environments

The Seldén BBB20 Double Stand Up block is a 20mm ball bearing block suitable for control lines on dinghies and keelboats

The swivel lock is created by a plastic washer positioned between the block body and the shackle

The 60 mm Single Plain Bearing Block is designed for medium-sized boats and numerous applications

System 30 - Standard Track, 3500 mm, , Screw size M6 Through Deck making this block ideal for30 mm x 3500 mm long standard track with holes for M6 fasteners. Hole spacing 100 mm. To be combined with System 30 cars and end stops. System 30 is used for medium sized yachts. System: 30 Profile: Standard Length: 3500 mm W: 30 mm H: 17 mm Fasteners: M6 Comment: Hole spacing 100mm