rywhere)Self-check through productionAdvantages1.Work well with soft material. provide greater bearing surface for fastening.2.Provide greater bearing surface for fastening soft and brittle facing materials and oversized? facing holes.3.Increased flange diameter protects the integrity of the application.Packing and TransportationTransport :By sea or By airPayment Terms:L/C, T/T, Western unioPort:Shanghai , ChinaLead Time :15~20 Working Day for A 20' Container. 5 days if have stock .Package :1.