Window Fabrication Screws - Countersunk with Ribs - PH - Self-Tapping Thread - Self-Drilling Point - Martensitic Stainless Steel & Silver Organic - 3.9 x 19mm - 1,000 Pieces
Multiple uses for fitting a variety of hardware to frames where there is a steel or aluminium reinforcement present. Stainless steel should be used where there is a corrosive environment. Countersunk head with ribs under head for improved countersinking.
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