Specification:
<1>Package Quantity: 421 Pieces
<2>Material: Brass, Nickel Plated Steel, Black Zinc Plated Steel, Fiber Paper
<3>Type: Thumb Screw, Fan Screw, CD-ROM Screw, Hard Drive Screw, Mainboard Screw, Main board insulation gasket

Feature:
<1>Made of high quality brass, steel and fiber paper, steel with nickel and black zinc plated, which have superior rust resistance and excellent oxidation resistance.
<2>Whether you are a PC building hobbyist or a professional tech, this set of replacement screw accessories is a necessity and the quantity should last for several projects

Package included:
<1> Thumb screws 6#-32*6 (Black) --------------------------------10 Pieces
<2> Chassis high-strength screws 6#-32*6-----------------------30 Pieces
<3> Hard drive screws 6#-32*5--------------------------------------50 Pieces
<4> M3 x 4.8mm screws for 2.5" SSD-----------------------------40 Pieces
<5> Main board fixed screws M3 x 5-------------------------------50 Pieces
<6>Flat head hard drive screws -------------------------------------50 Pieces
<7> CD-ROM set screws M3 x 4------------------------------------50 Pieces
<8> Brass standoffs screws M3 x 6 + 6---------------------------15 Pieces
<9> Chassis fans retaining screws M5 x 10 (Black) -----------30 Pieces
<10> Steel standoffs screws 4#-40*5+7--------------------------15 Pieces
<11> Main board insulation washers M3 x 8---------------------80 Pieces
<12> Screwdriver--------------------------------------------------------1 Pieces

HELIFOUNER 421 Pieces Computer Standoffs Screws Assortment Kit with a Screwdriver

Warning: small parts, keep away from children and kids.