These indented hex head self-drilling and tapping screws cut their own threads into a material without the use of a pilot hole.
Metallics JWW82SS Washers 3/8 USS Flat SS (Jar 100)
https://nsiindustries.com/product/washers-3-8-uss-flat-ss-jar-100/
Washers 3/8 USS Flat SS (Jar 100)
Metallics TEKDK6 Screws 6 Hwh TS D-Pt Kit St-zn (Trey 1)
https://nsiindustries.com/product/screws-6-hwh-ts-d-pt-kit-st-zn-trey-1/
Screws 6 Hwh TS D-Pt Kit St-zn (Trey 1)
Metallics SDS73265 Hammer Drill Bits SDS-Plus Dia 7/32 IN 6-1/4 IN (1pc)
https://nsiindustries.com/product/hammer-drill-bits-sds-plus-dia-7-32-6-1-4-1pc/
Hammer Drill Bits SDS-Plus Dia 7/32″ 6-1/4″ (1pc)
Metallics QCSH40 Anchors 1/4 X 2-3/4 Qd 5/16Hd Conc Scr St-zn (Jar 100)
https://nsiindustries.com/product/anchors-1-4-x-2-3-4-qd-5-16hd-conc-scr-st-zn-jar-100/
These indented hex head self-drilling and tapping screws cut their own threads into a material without the use of a pilot hole.
Metallics MT208L4B Power Bits XLong 1/4 IN 4 IN (1pc)
https://nsiindustries.com/product/power-bits-xlong-1-4-4-1pc/
Power Bits XLong 1/4″ 4″ (1pc)
Metallics JHTB72 Bolts 5/8-11 X 2-3/4 Hx Tap Blt St-zn (Jar 25)
https://nsiindustries.com/product/bolts-5-8-11-x-2-3-4-hx-tap-blt-st-zn-jar-25/
Bolts 5/8-11 X 2-3/4 Hx Tap Blt St-zn (Jar 25)
Metallics JSWBR68 Washers 4 Flat Br (Jar 100)
https://nsiindustries.com/product/washers-4-flat-br-jar-100/
Washers 4 Flat Br (Jar 100)
These pan head tapping screws cut their own threads into a material, but still rquire a pilot hole and are typically used in construction with a variety of materials.