Sizes 4” Diameter Split Rings Used in trusses 3” and larger Used with ¾” bolt Used with Grooving tool #302 / TSR102 Plain or Galvanized 2-1/2” Diameter Split Rings Used in 2” rafters and trusses Used with ½” bolt Used with Grooving tool # 301 / TSR64 Plain or Galvanized Split Ring Dimensions Bolt Diameter Inside Diameter Depth Lumber Minimum Dimension Weight Per 100 Pieces Part Numbers Ring In 1 Face Ring In Both Faces Plain Galvanized Plain Galvanized 1⁄2 21⁄2 3⁄4 1 x 31⁄2 11⁄2 x 31⁄2 27 28 18683 18684 3⁄4 4 1 1 x 51⁄2 11⁄2 x 51⁄2 68 70 18685 18686