good quality aganist competitive price. Description: screws1) Specification: DIN,ANSI, BS, such ... bar Material: carbon steel& Stainless steelSize:all sizeSurface : Yellow zinc black phosphated, gray phosphatedPacking:1000&500 in box -carton-palletAlso we ... produce the screws as customer's drawings and samples with high quality. high quality,bugle head drywall screws,black color