A Torx successor, Torx Plus, was introduced around 1990 when the original Torx patent was expiring. The Torx Plus patent subsequently expired in 2011. [16] [17] The lobes are more square to allow for higher torque and to minimize wear. The name is shortened to IP (Internal Plus) with sizes ranging from 1IP to 100IP [18] (sometimes listed as IP1 to IP100 [19]) and EP (External Plus) with sizes ranging from 1EP to 42EP as well as smaller sizes ranging from H7EP to H2EP and includes five-lobed tamper-resistant variants. [18] The specifications for these licenses are held by Textron. Standard Torx drivers can be used to drive Torx Plus screws, but not to full torque because of the loose fit. Torx Plus drivers will not fit into standard Torx screws.

T6 Drive Screws | McMaster-Carr

Pressure points – the hex design of the Allen™ screw distributes force from the tool against 6 surfaces compared with 4 for the Phillips head screw and 2 for the slotted screw. This makes it easier to loosen or tighten these fasteners and can make it less likely to strip or damage a fastener while loosening or tightening. All our products are very competitively priced... but more importantly, we believe they offer you the Very Best Value! Size and weight – Allen™ keys tend to be smaller and lighter than the equivalent tools used to apply other fastener types, making them easier to carry. This can be an advantage for applications where mobility is important such as with cyclists that might want to carry a bike tool kit along on a ride. We are all familiar with traditional slot-head screws, which require a flat-bladed screwdriver, and cross-head screws, which might be Phillips or Pozidriv. But there are many additional, specialised screw-types including Torx screws. What is a Torx Screw? a b c U.S. Patent 3,584,667, Bernard F. Reiland, "Coupling arrangement and tools for same", filed 1967-03-21AW drive is a hexalobular-type screw head similar to Torx, with a tapered profile to aid in centering, developed by the Würth Group in Germany. [30] It is available in five sizes: AW10, AW20, AW25, AW30 and AW40. [31] Gallery [ edit ] Torx (pronounced / t ɔːr k s/) is a trademark for a type of screw drive characterized by a 6-point star-shaped pattern, developed in 1967 [1] by Camcar Textron. [a] A popular generic name for the drive is star, as in star screwdriver or star bits. The official generic name, standardized by the International Organization for Standardization as ISO 10664, is hexalobular internal. [2] This is sometimes abbreviated in databases and catalogs as 6lobe (starting with the numeral 6, not the capital letter G). Torx Plus, Torx Paralobe and Torx ttap are improved head profiles. [3]

Minotaur Torx Precision Screwdriver Set | Toolstation Minotaur Torx Precision Screwdriver Set | Toolstation

Sharke, Paul (June 2005). "Fast and Secure: how much proof is tamperproof?". Mechanical Engineering. 127 (6): 32. doi: 10.1115/1.2005-JUN-2. ISSN 0025-6501. Archived from the original on 2007-02-09 . Retrieved 2012-01-14. {{ cite journal}}: CS1 maint: bot: original URL status unknown ( link) Torx is the trademark for a type of screw head, developed by Camcar Textron in 1967. It’s characterised by a distinct, 6-point star-shaped pattern and is often called a ‘star screw’ that requires a ‘star screwdriver’ with a ‘star bit’ to tighten and untighten them.

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