These pan 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.

Bolts 5/16-18 X 2-3/16 X 1 U-Blt &Nt (Bag 10)
https://nsiindustries.com/product/bolts-5-16-18-x-2-3-16-x-1-u-blt-nt-bag-10/
Bolts 5/16-18 X 2-3/16 X 1 U-Blt &Nt (Bag 10)
Thread Rod 1-8 x 3′ SS (Piece 1)
These pan head sharp point tapping screws cut their own threads into a material and do not require a pilot hole unless fastening metal.
M6 x 50mm Metric Cap Head Hex Cap Screws – Steel Black – 100qty
https://nsiindustries.com/product/m6-x-50mm-metric-cap-head-hex-cap-screws-steel-black-100qty/
These socket head cap screws have threads along the entire length with a hexagon drive allowing high torque perfect for clamping machinery parts together.
Bolts 1/2-13 X 5 X 3-1/2 U-Blt &Nt U (Box 10)
https://nsiindustries.com/product/bolts-1-2-13-x-5-x-3-1-2-u-blt-nt-u-box-10/
Bolts 1/2-13 X 5 X 3-1/2 U-Blt &Nt U (Box 10)
Magnetic Nut Setters 3/8″ Long Drill Chuck 2-9/16″ (1pc)
https://nsiindustries.com/product/magnetic-nut-setters-3-8-long-drill-chuck-2-9-16-1pc/
Magnetic Nut Setters 3/8″ Long Drill Chuck 2-9/16″ (1pc)
Thread Rod 1/4-20 X 12′ SS (Bundle 1)
https://nsiindustries.com/product/thread-rod-1-4-20-x-12-ss-bundle-1/
Thread Rod 1/4-20 X 12′ SS (Bundle 1)
Anchors 7/8 x 10 Wdg St-zn (Box 10)
https://nsiindustries.com/product/anchors-7-8-x-10-wdg-st-zn-box-10/
Anchors 7/8 x 10 Wdg St-zn (Box 10)
Anchors 1/2 x 8-1/2 Wdg SS (Box 25)
https://nsiindustries.com/product/anchors-1-2-x-8-1-2-wdg-ss-box-25-2/
Anchors 1/2 x 8-1/2 Wdg SS (Box 25)