6.3mm x 50mm hex head self-drilling screw in A2 stainless steel to DIN 7504-K. The drill-point tip bores and taps into aluminium and other compatible thin-gauge substrates in a single operation - no pre-drilling or tapping required. A2 (304 grade) gives good corrosion resistance for indoor and non-coastal outdoor use. Free next-day UK delivery on orders over £50.
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