1、These set screws are made from 304 stainless steel for rust protection, durability and long service life 2、They are multipurpose hex socket head set screws that you can simple drive with hex keys 3、There are 12 common sizes and you can concenate on your project without worrying about not having the correct screws 4、Get these total 240 pieces screws so you won't be running off to the hardware store for a set screw for quite a while 5、Well packed and assorted in a resealableansparent box for convenient carry and storagecolor:"12px;normal;start;0px; Description: color:"12px;normal;start;0px; A set screw is a type of screw generally used to secure an object within or against another object without using a nut. The most common examples are securing a pulley or gear to a shaft. Set screws arespan Apple-converted-spacefully threaded and has no head projecting past the major diameter of the screw thread.span Apple-converted-spaceThese set screwsspan Apple-converted-spaceare driven with a internal-wrenching hex socketspan Apple-converted-spacedrive. color:"12px;normal;start;0px; color:"12px;normal;start;0px; Features: ul "12px;normal;start;0px; These set screws are made from 304 stainless steel for rust protection, durability and long service life. span a-list-itemspan a-size-base review-textThey are multipurpose hex socket head set screws that you can simple drive with hex keys. span a-list-itemspan a-size-base review-textspan a-list-item style=There are 12 common sizes and you can concenate on your project without worrying about not having the correct screws. span a-list-itemspan a-size-base review-text style=Get these total 240 pieces screws so you won't be running off to the hardware store for a set screw for quite a while. span a-list-itemspan a-size-base review-text style=Well packed and assorted in a resealableansparent box for convenient carry and storage. color:"12px;normal;start;0px; span a-list-item color:"12px;normal;start;0px; Specifications: color:"12px;normal;start;0px; Material: 304 stainless steel color:"12px;normal;start;0px; Type: Hex Socket Cup point color:"12px;normal;start;0px; Color: Silver color:"12px;normal;start;0px; Size and Quantity: color:"12px;normal;start;0px; M3*30pcs M3*40pcs M3*50pcs M3*60pcs M4*4 0pcs M4*50pcs M4*60pcs M5*50pcs M5*80pcs M6*60pcs M6*10 20pcs M8*8 0pcs color:"12px;normal;start;0px; color:"12px;normal;start;0px; Package Includes: color:"12px;normal;start;0px; 240pcs x Screws color:"12px;normal;start;0px; 5pcs x Hex KeysM1.5, M2, M2.5, M3, M4