Single foot block, sheave Ø 40, SWL 500 kg Manufacturer part #:00411 Technical Description Features American Metric No. sheaves 1 1 Ø sheave (D) 1.57 in 40 mm Side bearing Delrin balls Delrin balls Weight 0.11 lbs 50 gr Ø max line 0.31 in 8 mm SWL 1102.3 lbs 500 kg Material S.steel S.steel Sheave material Plastic Plastic Fixing screws 2 x round head 2 x round head Ø screws 0.24 in 6 mm