The Phillips screw drive was created by Henry F. Phillips.
The American Screw Company of Providence, Rhode Island was responsible for devising a means of manufacturing the screw, and successfully patented and licensed their method; other screw makers of the 1930s dismissed the Phillips concept because it calls for a relatively complex recessed socket shape in the head of the screw — as distinct from the simple milled slot of a slotted type screw. The Phillips screw design was innovated as a direct solution to the problem of slotted screws which suffered a number of problems: easy cam out, precise alignment required to avoid cam out and damage, and very difficult to drive with powered tools.
Phillips driver sizes (different from the screw size) are designated 0000, 000, 00, 0, 1, 2, 3, and 4 (by order of increasing size).
A Phillips screw head is significantly different from a PoziDriv, see PoziDriv for details.
The design is often criticised for its tendency to cam out at lower torque levels than other ‘cross head’ designs. There has long been a popular belief that this was actually a deliberate feature of the design, for the purpose of assembling aluminium aircraft without overtightening fasteners. However, evidence is lacking for this suggestion.
Galvanized simple phillips driver made of steel
Details
Various kinds of fasteners for you reference
1: Provide custom made service
2: We can help you develop new product
3: Quality assurance
4: Factory price
5: Quality first
6: Customer satisfaction
7: Continuous improvement
8: Refine on
9: Care for the environment
Dongguan mingxing hardware product factory was founded in 1998, is located in Dongguan, the world’s leading hardware parts processing base.
Our products are very popular in the industry. We have many well-known customers, suck as Fastenal, Emerson, ZTE, Hisense, Sony, San Martin, etc. At the same time, the metal fasteners are widely used in a variety of products, including consumer electronics, mobile phones, printers, tablets, power tools, etc.
We have professional automatic fastener assembling machine line which can improve efficiency and reduce your cost and help you create huge benefit. We also have professional design capability to custom-made for your special need.
Dongguan mingxing hardware product factory using cutting edge workmanship and adopting scientific management method, we are aiming at producing good quality products to win customer’s trust and to maximize customer’s satisfaction.
Dongguan mingxing hardware product factory always insist on quality first, focusing on technology and product innovation to create more value for our customers.