rockSteel M31SL

ROCK EXOTICA The rockSteel is also available as an manual lock, and in black (all images not shown). Weight: Screw 8.1 oz (226 gm), Auto/Manual 8.8 oz (246 gm) Breaking strength: Major axis: 45 kN Minor axis (Auto/Manual): 16 kN Minor axis (Screw): 18 kN Open gate: 12 kN Gate opening: 1.2" (30 mm)