head symmetry and 4 symmetrical functioning spiral ridges for fast

1-8 Finished Hex Nut Silicon Bronze

The slots are for the insertion of a cotter pin to secure the nut when used with a drilled shank fastener

5/16 x 6 (1/4 Drive) Magnetic Nut Setter

7/16 x 12 ITM SDS Plus eVolution™ Hammer Drill Bit Hex Washer Head Metal-Panel Screws 316 Stainless Steel with EPDM Washer head symmetry and 4 symmetrical7 16 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