Features: 1.The kit contains various types of screws required for industrial sewing machines, as well as accessories such as shrapnel and shuttle. 2.Made of high?quality stainless steel and iron materials, with high hardness and corrosion resistance, no deformation after long?term use. 3.These tools are mainly used to install sewing machine parts such as fixed presser foot, bobbin and needle plate. 4.The quantity is diverse and sufficient, and the old accessories can be replaced at any time, which can meet the basic sewing and installation needs. 5.Equipped with a separate storage box for storage, which is convenient for classified storage, organization and access. specification:Item Type: Sewing Machine Screw Kit : 1 set Material: Stainless steel, iron Purpose: Fix, update and replace old accessories, etc. Application: Most industrial sewing machines PackageList: 4 x Bobbin Case Shrapnel 2 x Thread Take-up Spring 1 x Small Screwdriver 5 x Bobbin Case Shuttle 10 x Shuttle Big Screw 10 x Shuttle Small Screw 3 x Presser Foot Bar Fixing Screw 2 x Big Head Screw 10 x Needle Plate Screw 10 x Presser Foot Screw 10 x Tooth Screw 10 x Needle Screw 1 x Storage Box