8-16 x 3/8 6-Lobe Pan Plastite 48-2 Alternative Fully Threaded 410 S/S Passivated & Waxed KPW It has a square head

It has a square head for easy driving and a fully threaded body for maximum holding power

while the fully threaded portion allows for precise adjustments

which means that it will not come loose even if the bolt or screw is vibrated or loosened

This 1/4-20 x 1 Slotted Indented Hex Head Machine Screw is made of steel and has a zinc finish

They feature a full thread design for maximum holding power and a Phillips flat head for easy driving

8-16 x 3/8 6-Lobe Pan Plastite 48-2 Alternative Fully Threaded 410 S/S Passivated & Waxed KPW It has a square head8 16 x 3 8 6 Lobe Pan Plastite 48 2 Alternative Fully Threaded 410 S S Passivated & Waxed: 8 16 thread size 3 8" head diameter 6 lobe pan head Plastite 48 2 alternative material Fully threaded 410 stainless steel Passivated and waxed for corrosion resistance