Antal OPF Blocks 50 - Block U-Bolt SOS-5678 is not toxic and non-flammable

is not toxic and non-flammable

Ronstan Lightweight Clevis Pin Shackle is ideal if split ring security is necessary

and with screws from the above

Constructed from metal

Antal OPF Blocks 50 - Block U-Bolt SOS-5678 is not toxic and non-flammableAntal 00513 OPF (One Piece Frame) Blocks 50 Block U Bolt, the block without pins or screws, it is a light and strong solution: simply a hard black anodised and Teflon coated aluminium frame in one piece. Features composite fibre sheave, HR swivel head (high load HR shackles included if applicable) and One Piece Frame (OPF). Sheave diameter: 50 mm Max rope size: 10 mm SWL: 500 kg Fasteners: 2 x M5 (included) Weight: 129 g