These indented hex head sharp point tapping screws cut their own threads into a material and do not require a pilot hole unless fastening metal.
Metallics QTEKD17M Screw 10 x 5/8 (5/16 IN Hd) Quadrive Self Drilling + T/S #2 Pt Zinc USA (1000pcs)
These hex head self-drilling and tapping screws cut their own threads into a material without the use of a pilot hole.
Metallics HG5564 55/64 X 1-3/16 HOLE GROMMET VY (Pack 10)
https://nsiindustries.com/product/55-64-x-1-3-16-hole-grommet-vy/
55/64 x 1-3/16 Hole Grommet Vy
Metallics DT3816 High Speed Steel Drill-Tap Combo 3/8-16 (1pc)
https://nsiindustries.com/product/high-speed-steel-drill-tap-combo-3-8-16-1pc/
High Speed Steel Drill-Tap Combo 3/8-16 (1pc)
Metallics MSCW516 Washers 5/16 Channel St-zn (Jar 100)
https://nsiindustries.com/product/washers-5-16-channel-st-zn-jar-100/
Washers 5/16 Channel St-zn (Jar 100)
Metallics JG5HC60 Bolts 5/8-11 X 1 G5 Hxbt St-zn (Jar 25)
https://nsiindustries.com/product/bolts-5-8-11-x-1-g5-hxbt-st-zn-jar-25/
Bolts 5/8-11 X 1 G5 Hxbt St-zn (Jar 25)
These flat head Phillips screws have finer threads than typical screws, requiring a pre-drilled hole and are perfect for joining metal parts in machinery and construction.
Metallics JBHC2PL Bolts 1/4-20 x 1 HXBT Pln-St (Jar 100)
https://nsiindustries.com/product/bolts-1-4-20-x-1-hxbt-pln-st-jar-100/
Bolts 1/4-20 x 1 HXBT Pln-St (Jar 100)
Metallics JRM99 Screws 1/4-20 X 1/2 Rh Cd MS St-zn (Jar 100)
https://nsiindustries.com/product/1-4-20-x-1-2-in-round-head-combo-machine-screws-steel-zinc-100qty/
These screws have finer threads than typical screws, requiring a pre-drilled hole and are perfect for joining metal parts in machinery and construction. With a combo drive, these fasteners can be used with slotted and Phillips screwdrivers and drill bits.