Product Name: Screw Wing Tek Screw Self Tapping Screw Model NO.: 4.2*32 Customized: Non-Customized Certification: ISO, RoHS Surface Finishing: Black Phosphated,Ruspert Shape of Head: Bugle Head,Flat Head Material: Carbon Steel Head Type: Flat Head Countersunk Head with Ribs Point: Drill Point/Wing Point Wing Tek Plating: Color Zinc/Yellow Zinc/White Zinc/Ruspert/Dacromet Type: Countersunk Head Head Style: Counter Sunk Bolt Connection: Self Drilling Grade: Ss 410 SUS 410 A2 A2-70 A2-80 A4-80 A4-70 A4 Transport Package: Box in Carton, Bulk in Carton, PP Bag/ as Required Specification: DIN, ANSI, GB Origin: China HS Code: 7318140000 Product Description Beyond Industry Groups Ltd professional manufacture and export steel and stainless steel self drilling screws, tapping screws, wood screws, bolts, drywall screws, machine screws etc, material brand C1022 C10B21 SUS410 302 304 305 316 etc.We usually have stock for pan head, flat CSK head, truss head, hex washer head, hex flange head in material SS410 & SS304 self drilling screws, size as below:4.2-18X13, 16, 19, 25, 32, 38, 504.8-16X13, 16, 19, 25, 32, 38, 505.5-24X13, 16, 19, 25, 32, 38, 50, 63, 75, 90, 100, 110, 125, 1506.3-14X13, 16, 19, 25, 32, 38, 50, 63, 75, 90, 100, 110, 125, 150Manufacture length up to 300mm, and other head type is available as below.Plating: Color zinc plating, white zinc plating, blue zinc plating, black zinc plating, phosphated, dacrotized, ruspert, xylan, etc.Ruspert follow AS 3566 standard.Thread: Cutting thread, cutting point, type 17, self tapping, self drilling ,spiral point etc.Drill Capacity: Drilling to 18mm steel panel, salt spray test up to 2000hours.If you are interested in these products, please feel free to contact us.