uxcell PC Computer Case HDD Phillips Flat Head Bolts Hard Drive Screws 100pcs Product Name: Hard Drive Screw; Material: Carbon Steel, Nickel Plated; Weight: 175g Package Content: 100 (+/-2%) x Hard Drive Screw; Overall Size: 12 x 11mm/ 0.47" x 0.4" (L*D) Main Color: Silver Tone; Thread Size: M3.5 x 5mm/ 0.12" x 0.2"(D*L) Head Thickness: 1.7mm/ 0.067"; Phillips Size: 4mm/ 0.16" Head Type: Phillips Flat Head; Pitch: 0.75mm