390PCS Metric 410 Stainless Steel Hex Washer Head Self Drilling Tek Screw Assortment Set

【High Hardness Steel-Rugged and Durable】Sheet metal screws made of high-quality 410 stainless steel, which has higher corrosion resistance and anti-rust effect than ordinary screws, longer service life, not easy to damage, more solid.（Tips：410 Stainless Steel is one of the highest forms of corrosion resistant steel and they are also still magnetic.）

【Great Holding Power】Hexagon washer head self-drilling screws suitable for non-metal or soft metal, no mounting holes, directly screwed into the product with hexagon washer head self-drilling screws without nuts to fit. This self tapping screws adopt high-precision cutting technology, and the thread is very sharp, firm, clear, and would not be easily peeled off by the screwdriver.

【Head Types】Hex washer head distributes holding pressure to thin metal. The hex washer has stronger bearing capacity and stability. The thread is smooth and complete and sharp,the force is even, and it is not easy to slip or deform.

【Widely Occasion】This sheet metal screws can be widely used as wood screws,drywall screws, machine screws, deck screws, plastic screws, door hinge screws and so on. These screws assortment also can be used in household, office supplies, gardening tools, and industry like electronic products.