LEXIVON XZN Triple Square Spline Bit Socket Set, Size M4 M5 M6 M8 M10 M12 M14 M16 M18 | Allen Key Socket Multiple Teeth 10 Pcs Set, for Torque Wrench, Ratchet Wrench, Impact Power Drills (LX-145)

Product Information

The design is four overlapping square recesses, with 12 contact points, and is designed to increase torque, decrease wear, and avoid cam-out. ISO 8764-1:2004(E) Assembly tools for screws and nuts — Screwdrivers for cross-recessed head screws — Part 1: Driver tips" (PDF). They are potentially capable of allowing more torque than a six-point, but greater demands are placed on the metallurgy of the heads and the tools used, to avoid rounding off and slippage. The spline socket [51] (alternatively known as Bristo, [52] Bristol, [53] Bristol spline, multiple-spline [54] and fluted [55]) screw drive features four or six splines. 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.

Triple Square Sizes? | TDIClub Forums Triple Square Sizes? | TDIClub Forums

For further security, there are custom-designed fastener heads requiring matching drivers available only from the manufacturer and only supplied to registered owners, similar to keyed locks. The hexalobular socket screw drive, often referred to by the original proprietary brand name Torx (pronounced "torks") or by the alternate generic name star drive, uses a star-shaped recess in the fastener with six rounded points. When the rechargeable battery is no longer serviceable, the toothbrush case may be opened by removing this screw, allowing access to the battery and motor units for recycling. Owing to its six-fold symmetry, a Torx driver can also be used as an improvised substitute for a hex driver, although careful sizing is critical to prevent stripping the socket.which roughly matches a classic North American 1/4" screwdriver although the North American one is often a bit thinner (~1. Torx Paralobe is a further improvement over Torx Plus, [48] claiming 50% increased drive system torque over Torx and 20% over Torx Plus.

BRITOOL TRIPLE SQUARE BIT SOCKET SET / SPLINE BITS | XZN

They are intended to be tightened and loosened by hand, and are usually not found in structural applications. At a minimum, a screw drive is a set of shaped cavities and protrusions on the screw head that allows torque to be applied to it. The hex drive is better than square drive for locations where surrounding obstacles limit wrenching access, because smaller wrench-swing arcs can still successfully rotate the fastener. Files are sent over to manufacturers containing these models so that there is no miscommunication and all the parts are the same across the board.TP3 (sometimes referred to as tri-lobe or tri-lobular) uses a Reuleaux triangle-shaped recess in the screw head, to make it semi-secure because it cannot be driven by a flat-blade screwdriver [89] and is not readily driven, as Tri-angle is, by hex keys.

Torx but more splines | Screwfix Community Forum

The Recex drive system claims it offers the combined non-slip convenience of a Robertson drive during production assembly and Phillips for after market serviceability. These specialized screws are usually used on electronics equipment, including some Nintendo handheld hardware, Sanyo and Kyocera cellular telephones, and Fuji digital cameras. Metric sizes of the hex are specified by ISO 4032 and ISO 4033, plus ISO 4035 for Jam Nuts, and ISO 4014 and ISO 4017 for hex cap screws, ISO 4018 for Hex head screws (grade c).The fasteners involved have heads that are hardened and tempered to withstand the driving torque without destroying the star points. They can be found on many computer cases, and in other locations where easy access without tools is desired.