– Blind rivets made of high quality aluminium nail body and steel nail core – RIVET SIZE – 3.2mm x 6mm (1/8″x1/4″). – Diameter is 3.2mm, grip length is 6mm – The tail of the rivet is in the shape of drilling tail, can be directly used to the setting material and basic material drilling – Compared with soild rivets,the clamping force of joint is more equilibrium – Wide Application – Pack of 100pcs with reusable blister pack