Established in 1921, Landmark Crafts Fasteners, an ISO 9001:2015 accredited company is located at, Ghaziabad Uttar Pradesh India. It is located next to New Delhi, Capital of India and enjoys convenient transportation. Landmark Crafts Fasteners. As one of the largest manufacturers of self drilling screws, dry wall screws.The Company is committed to achieving clients satisfaction by consistently meeting their specific requirements in terms of quality, cost effectiveness, and timely delivery. The factory at Kaoushing, Taiwan. is engaged in manufacturers Self Drilling Screw, Self Tapping Screw & drywall screws. Self-drilling screws under the brand name SDHP have features like xylan coating which passes 1000hrs SST with leak proof EPDM washers. There is a choice of colored plastic hex head caps for matching color roofing sheets. These screws come in different types with various drilling capacities. These screws have the capacity to drill through 6mm to 16mm thick purlins.