Ball valves locking as per picures in attachment 1 Clevis pin without head, B-10x50 ISO 2340 / DIN 1443 Carbon steel, Zinc plated Q.ty 50 pcs. 2 Spring cotter pin Size 3.2 (φ2.8) DIN 11024 Carbon steel, zinc plated Q.ty 100 pcs. 3 Security chain with rings 250 mm long Q.ty 50 pcs.