316 stainless steel has greater corrosion resistance than 18-8 as well as superior strength at high temperatures

7/8-14 x 2 1/2 Hex Cap Screw SS 18-8 (A2)

7/8-9 x 18 Socket Cap Screw Alloy

3/4-16 x 4 1/2 Socket Cap Screw Alloy

5/8-18 x 5 Grade 8 Hex Cap Screw Yellow Zinc Plated

1/2 x 12 ITM SDS Plus eVolution™ Hammer Drill Bit Phillips Pan-Head Marine Screws 316 Stainless Steel 316 stainless steel has greater1 2 x 12 ITM SDS Plus eVolution Hammer Drill Bit . An all new designed solid 4 x 90? head symmetry and 4 symmetrical functioning spiral ridges for fast, accurate and tough drilling through all aggregates, concrete, masonry, brick, stone and rebar. 50% more holes Drills rebar No "sticking" Less breakage Less vibration Made in Germany