Shop Hex Washer Head Self-Drill 410 Stainless Steel

#8 diameter w/ a #2 drill point used in 20-13 gauge metal applications

#10 diameter w/ a #2 drill point used is 20-12 gauge applications

#10 diameter w/ a #3 drill point used in 12-8 gauge metal applications

#12 diameter used in 12-5 gauge metal applications

#14 diameter used in 12-3gauge metal applications

410 Stainless Steel provides more corrosion resistance in mild environmental conditions.