Hot-Dip Galvanized nuts are over tapped per ASTM A563

1 1/2-6 x 20 Socket Cap Screw Alloy

#19 Heavy Duty Jobber Drill Bit

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GutterScrew™ enables you to replace old popping gutter spikes once and for all

1/2-13 x 5 1/2 Hex Cap Screw SS 316 (A4) 1/2-13 Hex Tap Bolts 18-8 Stainless Steel Hot-Dip Galvanized nuts are over1 2 13 x 5 1 2 Hex Cap Screw SS 316 (A4) . 316 series stainless steel differs from 18 8 by its molybdenum content (2 3%) and a higher nickel content (10 14%). 316 stainless steel has greater corrosion resistance than 18 8 as well as superior strength at high temperatures.