Barton Size 0 Plain Block Stand Up N00170

A strong, lightweight block ideal for use on dinghies and dayboats or as lead blocks on larger craft. Features a tapered stainless steel spring for anti ~tumble action. Fastening centres: 28mmFastening diameter: 4mmSheave size: 20mm x 8mm 25/32 x 5 16 inchMax rope diameter: 5mm 3 16 inchSWL: 275kg 606lbsBreak load: 550Kg 1210 lbsLength: 47mmWeight: 21g