ISO 4754-1983(E) Cross recesses for screws" (PDF). Archived from the original (PDF) on April 30, 2023 . Retrieved October 1, 2023.

Also known as an ECX or Combination Tip drive. A combined slotted and Robertson drive screw found in electrical power equipment and distribution equipment. The design allows for higher torque application with reduced camming, slipping out and damaging the fastener. [63] The ECX drive is not compatible with older combination Phillips and slotted head screws. [64] Although Milwaukee Electric Tool holds the trade name ECX, their marketing materials do not tell what type of screw head ECX is designed to fit. [50] Clutch [ edit ] Apple uses Y-type screws to secure the battery on the 2010 and 2011 MacBook Pro, as well as an extremely small type in the Apple Watch, iPhone 7 and iPhone X. [87] [88] This style of screw is often called a "tri-wing", although that name more properly belongs to a different design (see below).

Phillips Head Screwdriver Size Guide

Longer or shorter handles can accommodate differently-sized hands. A screwdriver set that will primarily be used by a woman, for example, may have shorter handles than one made for a man with large hands. Using Different Phillips Head Screwdriver Sizes There is a proper tool for every DIY task, and tools should only be used for their intended purpose. You never want to hit a screwdriver with a hammer because the small, sharp tip of the screwdriver could break or chip under this pressure and completely ruin the tool. What is the most common mistake made in using screwdrivers? A thumbscrew is a type of screw drive with either a tall head and ridged or knurled sides, or a key-like flat-sided vertical head. They are intended to be tightened and loosened by hand, and are usually not found in structural applications. They are sometimes also cut for Phillips head or slotted screwdrivers, as well as having the knurling for finger grip. ASME Standard 18.6.8 covers dimensions for Type A (shoulder under the head), regular and heavy, along with Type B (without shoulder), regular and heavy. They can be found on many computer cases, and in other locations where easy access without tools is desired. Any complete screwdriver set will feature both flat head and Phillips’s head screwdrivers, with the size of the drivers ranging from 0 to 4 while the handle and shaft will length vary. In a set, you might find a special stubby Phillips-head driver with a 1½-inch shaft, and several drivers with four-inch shafts as well.

Crosshead screws, the type used with Phillips head screwdrivers, allow for a tighter fit than flathead screws. That's why this is the screw of choice for many manufacturers and builders. Pavlis, Egon "arcticpenguin" [pseudonym]. "When a Phillips is not a Phillips Plus So Much More!". Instructables: share what you make. Instructables. Archived from the original on 2012-02-09 . Retrieved 2012-03-11. PH) (PZ) ISO 8764 PH drivers [31] are nearly identical to JIS B 1012 drivers. ISO 8764 has superseded JIS B 1012 in Japan as well as being used in many other countries. The standard specifies that drivers and bits are to be marked with a "PH" or "PZ" followed by the size number (000, 00, 0, 1, 2, 3), though not all manufacturers do this. [32] A cross or double-slot screw drive has two slots, oriented perpendicular to each other, in the fastener head; a slotted screwdriver is still used to drive just one of the slots. This type is usually found in cheaply-made roofing bolts and the like, where a thread of 5mm (0.20in) or above has a large flattened pan head. The advantage is that they provide some measure of redundancy: should one slot be deformed in service, the second may still be used. Frauenfelder, Mark (2011-01-20). "Apple's diabolical plan to screw your iPhone". Boing Boing. Archived from the original on 2011-01-23 . Retrieved 2011-01-23.a b arcticpenguin (2008-12-29). "SupaDriv". Instructables.com. Archived from the original on 2012-03-24 . Retrieved 2012-03-12. There are numerous other types of screwdrivers, with varying shaft lengths. Some shafts may be as long as eight or nine inches.