FORGED EYELETS are available as 'Standard', 'Straight Thimble' and 'Angle Thimble'. They are hot galvanized and used on the ends of 5/8 or 3/4 diameter machine bolts. Standard Eyelets have a slot size of 11/16 x 1-1/8 (for 5/8 bolts) and 13/16 x 1-1/8 (for 3/4 bolts).