Check the listing for details. 10pcs 1/2-13 UNC 2.0D Wire Thread Repair Insert Helical Type Coiled. Condition: New. Listed at 14.17 USD. Attributes:* Thread Size: 1/2-13 UNC* Effective Length (after Installation): 2.0D=20mm / 0.79"* Type: Helical* Material: 304 Stainless SteelWhat Is Included:* 10 Pieces x Wire Thread InsertsApplications & Features:--- Widely used in aviation, automobile, steam turbines, electronic communications computers, lamps, molds, mechanical equipment, radiators, semiconductor equipment and other manufacturing field.--- Locking wire thread insert can lock the screw into the threaded hole, and the locking design can prevent the wire from sliding--- The tread repair kit is made of 304 stainless steel, which has good corrosion resistance, rust resistance and excellent oxidation resistance, and does not deform.Useful Tips:--- Please check the specific size of the product before buying.