Sanma Block with Shackle Top
*Materials: SUS304, Sheave/Swivel: SCS13 (equivalent to SUS304)
*Oil impregnated bush : bronze
*When using this product, tighten the shackle pin and then tighten the locking screw.
*Safety working load is set variously in each country.
Our blocks safety working load is decided around from 1/8 to 1/10 of their breaking load.