High red hardness of cobalt permits speeds 30% greater than standard heavy duty split point (HSS) drills

1/2-13 Lipped Drop-In Anchor Zinc Plated (50)

5/8-18 x 4 1/2 Hex Cap Screw SS 18-8 (A2)

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

3/4-10 x 6 Hex Cap Screw SS 316 (A4) 1-8 Socket Cap Screws Alloy High red hardness of cobalt3 4 10 x 6 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.