10 x 3 in. Powerhead Cabinet-Mounting, for Metal Studs, Square, Nibs - Qty: 150

10 x 3 in. Powerhead Cabinet-Mounting, for Metal Studs, Square, Nibs - Qty: 150

The PowerHead Screws for Metal have more holding power, finer threads, and a drill-point head to easily tap into steel studs for maximum holding power.

The PowerHead Screws main advantage is its large, oversized flat head that won't pull through your attaching material. The oversized head has 4x the holding power than a conventional screw head. Nibs under the head will clear away material to allow the top of the head to sit flush with the surface.

PowerHead Screws will fasten to MDF boards and there is no need to pre-drill. However, it is recommended to test drilling a screw into a sample piece of MDF before beginning the final project. Depending on the manufacturer of the MDF board, varying amounts of glue are used in different boards. If a large amount of glue is used in the board, there is a greater chance that the board will crack and/or develop a bump when the screw is drilled into the board. If the tested area does crack or bump, it is recommended, in this case, to pre-drill.

In 1908, P. L. Robertson began to manufacture a square recess impression in the head of a screw in Milton, Ontario, Canada. He was a brilliant toolmaker that injured his hand while driving a slotted screw and started developing a better recess. At that time, it was a revolutionary change in the fastener industry. It has a more positive fit that reduces "cam out" and requires only 4 foot pounds of pressure to keep the bit engaged. An early attempt to introduce these Square Recess Screws into the United States failed so they were confined to the Canadian Market until the 1970s. The Phillips Head was introduced in the 1930s and would "cam out" instead of being over torqued by the new power drivers of the time. Henry Ford tried out Square Drive and found them to save time in the production of the Model T. Ford wanted to License the Square Drive and when Robertson refused, Ford went with the Phillips and allowed the Square Drive to be used in Ford's Canadian Production. For the auto industry that was fine where woodworkers work concerned about the finished look of their product. Eventually, the Robertson Recess screws migrated across the border making their place in the furniture and woodworking trades, especially with the growing popularity of pocket hole joinery. A new hybrid is the combination of the Square-Phillips, Combo or Recex Recess that you can use either or Square/Philips bits. The first patent was issued in 1909 and the last patent expired 55 years later in 1964. For his invention, P.L. Robertson screws and screwdrivers carry his name to this day.

1.The Evolution of the Screw and Screwdriver

The silver appearance of Clear Zinc has been around for many years and remains very popular. It also provides a moderate level of rust protection. Since this is a true electroplating, the zinc coating is part of the surface of the steel and very durable.

Self Tapping Screws feature a self-drilling tip that drills through the steel and then the tapping screw thread locks itself into the steel. Make sure you use a slower rpm. and give the self-drilling point time to cut away the steel just like a drill bit

FEATURES:

• Large Oversized 9/16" diameter heads provide 4 times the holding power of other screws.
• Type 17 point allows for self-drilling
• When used with FastCap's FlushMount Drill Bit (part # FCS-6050), the screw head can be hidden perfectly behind a peel-and-stick FastCap.

For seating the screwhead flush, use of the Flush Mount Drill is recommended. When counterboring with the flush mount drill, ample material thickness must remain for overall strength.