4 Hole Countersunk Machine Screw

▶ 3 Hole security screws is similar to 2 hole screw
▶ 3 Hole drilled into the head require a unique 3-pin driver to install and remove
▶ Aesthetically pleasing head design, often specified by designers and architects
▶ Countersunk head for a flush finish in a countersunk hole (screw length includes head)
▶ Manufactured in A2 stainless steel or carbon steel or customer request
▶ Suitable for low torque applications
▶ Matching driver bits available
▶ For customer request