Deformed Thread Locknut Conical Top Lock Steel Finish Yellow Zinc Plated Wax Grade 8 Thread Size 3/4-10 Thread Type UNC Thread Direction Right Hand Width 1 1/8 In Height 21/32 In Rockwell Hardness C26 to 34 For Use With Grade 8 Bolts General Purpose Meets/Exceeds IFI 100/107 Package Quantity 500