-H = Hole Thru, in/mm, dimensional tolerances vary depending on material used and length of dimension | -H = Hole Thru, in/mm, dimensional tolerances vary depending on material used and length of dimension | -H = Hole Thru, in/mm, dimensional tolerances vary depending on material used and length of dimension | -H = Hole Thru, in/mm, dimensional tolerances vary depending on material used and length of dimension | -H = Hole Thru, in/mm, dimensional tolerances vary depending on material used and length of dimension | -H = Hole Thru, in/mm, dimensional tolerances vary depending on material used and length of dimension |