Hook Eye Turnbuckle Specifications:

M4: A: 4mm, B: 50mm, C: 80mm, D: 6mm, E: 7mm, Weight: 30g
M5: A: 5mm, B: 70mm, C: 120mm, D: 8mm, E: 8mm, Weight 50g
M6: A: 6mm, B: 90mm, C: 160mm, D: 10mm, E: 9mm, Weight 80g
M8 A: 8mm, B: 120mm, C: 200mm, D: 14mm, E: 11mm Weight 170g