Our cable ties are made of either 6/6 nylon or 304 stainless steel.
Our standard hole punches do up to 10 gauge mild steel or 12 gauge stainless steel. These will not work on I-beams. Our Super Stainless Steel Slug Out punches will punch up to 8 gauge mild and 10 gauge stainless steel. For I-beams, use the SP3500.