OS-NBR-1-3/4×2-7/8×5/16
OS-NBR-1-7/8×2-1/2×5/16
OS-NBR-2×2-11/16×3/8
OS-NBR-2×3×1/4
OS-NBR-2-1/4×3×3/8
OS-NBR-2-3/8×3-1/8×3/8
OS-NBR-3×3-3/4×3/8