1.Natural PA Slotted Drive Knurled Head Screw - Thread Size M5; Thread Length 8.0 mm ; Head Diameter 10.5 mm 2.Natural PA Slotted Drive Knurled Head Screw - Thread Size M5; Thread Length 12.0 mm Head Diameter 10.5 mm 3.Natural PA Knurled Screw - Thread Length 15.0 mm Thread Size M5; Head Diameter 16.0 mm 4.Natural PA Slotted Drive Knurled Head Screw - Thread Size M5; Thread Length 10.0 mm Head Diameter 10.5 mm Please indicate an estimated value per single unit. We would be interested to purchase approx.1000 pcs./each but please indicate the cost also for greater quantity so that we can consider a larger sum.