Hex Socket Head Grub Screw Set Assortment Kit (with Plastic Box) M3-M8 12.9 Grade Black Alloy Steel 200Pcs

• OXIDATION 12.9 grade alloy steel material with oxidation has good strength of extension and corrosion resistance in many environments
• MULTIPLE FUNCTIONS-- They are multipurpose hex socket head set screws that you can simple drive with a hex key
• VARIOUS SIZE-- There are 10 common sizes and you can concentrate on your project without worrying about not having the correct screws
• APPLICABLE AMBIENT-- Ideal for use in confined areas as fixing component, industrial and construction fasteners
• USEFUL BOX-- Well packed and assorted in a transparent resealable box for convenient carry and storage

Description: 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 are fully threaded and has no head projecting past the major diameter of the screw thread. These set screws are driven with an internal-wrenching hex socket drive. Specifications: Material: 12.9 grade alloy steel Color: Black Type: Hex Socket cup point Size and Quantity: 20pcs ; M3x3mm 20pcs ; M3x4mm 20pcs ; M3x6mm 20pcs ; M4x4mm 20pcs ; M4x6mm 20pcs ; M5x5mm 20pcs ; M5x8mm 20pcs ; M6x6mm 20pcs ; M6x10mm 20pcs ; M8x8mm Box Size: 13 x 6.5 x 2.3cm / 5.11 x 2.56 x 0.9" Package Includes: 200pcs x Screws