supply of 1. 68246115 (washer, punched steel round), 2. 68246116 (nut hexagonal plain 1/2 inch - 13 unc) 3. 68246117 (spring lock washer 1/2 inch)1. 68246115 (washer, punched steel round), 2. 68246116 (nut hexagonal plain 1/2 inch - 13 unc) 3. 68246117 (spring lock washer 1/2 inch),washer, punched steel round of size id: 13mm, od: 24mm plus or minus 0.5,thickness: 2.5mm suitable for m12 bolt conforming to is. 2016/ 1967, zinc plated or phosporated. (dlw part no:12928744) note: manufacture should indic ate their identification mark, month and year of manufacture at a suitable location by using a suitable method which will not affect the performance of the product. [ warranty period: 30 months after the date of delivery ] ] , nut hexagonal plain 1/2 inch - 13 unc - 2 b drawing drg no 1p60000-018 alt r1 or latest and to dlw part no.15350149. [ warranty period: 30 months after the date of delivery ] ] , spring lock washer 1/2 inch to drg no.tpe-13-0022 alt s, item 4. and to dlw part no.15393148 [ warranty period : 30 months after the date of delivery ] ] => limited