supply of aluminium alloy pop blind rivet & tapping screws (slotted csk flat head) etc.aluminium alloy pop blind rivet & tapping screws (slotted csk flat head) etc.,tapping screws (slotted csk flat head) st 4.8 x 38-c, cr/cd/ni plated to is:7170. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] , aluminium alloy pop blind rivet with steel mendral 4x19 mm as per drg.no. steel m endral 4x19 mm, rivet diameter-4 mm, hole size-4.1 mm, rivet length-19 mm . aluminium alloy: grade 1100. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]