A jaw member (11) for a support assembly (10) for securing a bicycle (1) to a load carrier (2) for a vehicle (8), The jaw member (13, 14) comprises a frame work structure formed by at least one support element and at least one rib (31, 32, 35, 36), The frame work structure is specifically adapted to enable the jaw member to withstand a relative high amount of tensile stress while still being relatively light weight.

According to a first aspect of the invention we provide an apparatus for coupling a shank of a threaded fastener and a torque device including: a first coupling member having an external surface portion defined by more than two steps that forms a taper; a second coupling member having an inversely tapered internal surface portion non-rotatably engagable with the tapered external surface of the first coupling member; wherein the steps of the first coupling member and the second coupling member are shaped either as angled cylinders, frustums of an angled stepped cone or frustums of an angled curved solid; and wherein the diameters of the steps of the first coupling member and the second coupling member are less than the diameter of the shank.

Advantageously, this aspect of the invention allows for an increased load bearing surface area between the coupling members without increasing the overall diameter of the apparatus; a three dimensional load bearing surface area rather than a conventional two dimensional plane; more efficiently and evenly distributed load stress distribution over the load bearing surface area; higher torsion strength; and apparatus with lower mass, dimensions and volume.

According to a first aspect of the invention we provide an apparatus (1) for use with a threaded fastener including: an inner sleeve member (100) having an internal surface threadedly engagable with the fastener and a tapered external surface; and an outer sleeve member (200) having an inversely tapered internal surface rotatably engagable with the tapered external surface of the inner sleeve member. Advantageously, the invention allows for an increased load bearing surface area between the inner sleeve member (100), which is clamped, and the outer sleeve members (200) without increasing the overall diameter of the apparatus (1) 6; a three dimensional load bearing surface area rather than a conventional two dimensional plane; more efficiently and evenly distributed load stress distribution over the load bearing surface area; higher torsion strength; and apparatus with lower mass, dimensions and volume.

A bolt includes a head, and a shank connected to the head and having a screw portion and a leading end portion. The leading end portion of the shank includes a wall portion that defines a hole. The wall portion includes: a deformation portion configured to be plastically deformed by a torque from a fastening tool to be inserted in the hole; and a space forming portion configured to form a space between the space forming portion and the fastening tool. The blot is configured such that a maximum torque applied to the deformation portion in a process, in which a part of the deformation portion is plastically deformed by the torque from the fastening tool and is accommodated in the space and the fastening tool is placed in an idle rotation state, is configured to be set to be within a predetermined range.

A circuit interrupting device for use with a electrical power distribution system includes a housing containing a circuit interrupting mechanism. A battery tube is positioned in the housing. A battery assembly is configured to be inserted into the battery tube. The battery assembly includes a battery assembly body having a first end and a second end. A battery is positioned in the battery assembly body. The battery assembly is configured such that both a positive contact and a negative contact are exposed from the second end of the battery assembly body. In some embodiments, the battery assembly includes a keyed portion mates with the battery tube to ensure alignment of the battery assembly in the battery tube.

A circuit interrupting device for use with an electrical power distribution system includes a housing containing a circuit interrupting mechanism. A battery tube is positioned in the housing. A battery assembly is configured to be inserted into the battery tube. The battery assembly includes an assembly body having a first end and a second end and a battery is positioned within the assembly body. A cap is connected to the assembly body and configured to connect the battery assembly to the battery tube. The cap includes a torque-limiting device that prevents overtightening of the cap to the battery tube.

A torque-limiting fastener assembly, comprising: a fastener body having an externally threaded shaft and a drivable head, said head being provided with elements adapted for frictional contact with a driver capable of delivering torque to said threaded shaft, wherein said elements comprise flexible flanges/toggles that deflect at a predetermined torque to prevent further frictional contact between said driver and said head elements that is sufficient to drive said fastener.

High-strength screw (1), with a head (2) with a tool engagement contour (4), a shank (3) with a free end (5) pointing away from the head (2), a threaded section (6) with a thread (7) being arranged on the shank (3), the thread (7) being formed as a metric ISO thread or inch thread, the head (2) and the shank (3) being de-signed as materially separate parts, the head (2) having a coupling recess (8) arranged radially inside with an axial force transmission element (9) and a torque transmission element (10), the shank (3) having a coupling element (11) arranged radially outside on its outer circumference with an axial force transmission counter element (12) and a torque transmission counter element (13), the coupling element (11) engaging in the coupling recess (8), the axial force transmission element (9) and the axial force transmission counter element (12) being designed and arranged to positively interlock in such a way that an axial translatory movement of the head (2) relative to the shank (3) in the direction away from the free end (5) of the shank (3) is prevented or will be prevented, in particular non-releasably, and the torque transmission element (10) and the torque transmission counter element (13) being designed and arranged to interlock in such a way that a rotational movement of the head (2) relative to the shank (3) in the tightening direction of the thread (7) is or will be prevented.