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.

【Widely Applications】Perfect for 2.5" SSD, computer case, power supply, motherboard, hard drives, fan and floppy/CD-ROM/DVD-ROM drives fixed installation, they are placed in a box, easy to find and use. 【DIY Assortment Kit】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】421 pieces computer case, power supply, motherboard, hard drives, fan, brass standoffs mounting screws and insulation washers, a screwdriver included. 【Material】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. 【Styles】Total 11 different computer screws, perfect for 2.5" SSD, computer case, power supply, motherboard, hard drives, fan and floppy/CD-ROM drives fixed installation.