The present invention provides a strike assembly type fixing device for a shipyard, in which the lower end of a fixture is inserted into a fixing groove formed in a fixing plate and the upper end of the fixture is screwed to be coupled to a separate fastening element are fixed. The strike assembly type fixing device for a shipyard according to the present invention is configured such that a protruding flange inclined downward is integrally formed with a fixture to form a single body at a portion where an upper end and a lower end of a fixture are connected to each other, and a packing ring is provided to be inserted into the lower end of the fixture in close contact with the protruding flange.

A locking dowel assembly for joining wooden objects without glue or screws includes a pair of cups. Each of the cups is inserted into a well in a respective pair of objects intended for joining together. A pair of inserts is provided and each of the inserts is positioned against each other such that the pair of inserts forms a cylinder. The cylinder is inserted into each of the cups for joining the objects together. A retainer is positioned between each of the inserts and the retainer has a plurality of teeth thereon. The teeth engage the cups when the insert is inserted into each of the cups thereby retaining the inserts in the cups.

A setting tool for an expansion anchor, which has an expansion sleeve and an expansion element disposed in the expansion sleeve, includes an internal drive shaft for axially driving forward the expansion element in the expansion sleeve and an external drive shaft surrounding the internal drive shaft for rotational driving and axially driving forward the expansion sleeve into a substrate. The internal drive shaft has an insertion end in a rear area for inserting into a hammer drill. The external drive shaft is disposed in a torque-free manner and is slidable axially on the internal drive shaft. The setting tool further includes a releasable locking device, where an axial sliding of the internal drive shaft relative to the external drive shaft is limitable by the releasable locking device in a forward direction for transferring forward directed axial forces from the internal drive shaft to the external drive shaft.

Disclosed here is a method for arranging at least one composite element at a component. The composite element includes a sleeve element and an insert element. The method involves: arranging the sleeve element in a bore of the component; connecting the sleeve element and the insert element so that a composite element is formed; inserting an engagement apparatus in the composite element, wherein the engagement apparatus aligns and/or assembles the sleeve element and the insert element to each other. Also disclosed here is use of an engagement apparatus and at least one composite element for arranging the composite element at a component. The at least one composite element includes a sleeve element and an insert element. The engagement apparatus aligns and/or assembles the sleeve element and the insert element to each other.

A bolt-retaining device has a cylindrical device enveloping contour, a diameter of which is greater than a nominal diameter of the bolt-retaining device. It includes a retaining section and a spreading section. The spreading section has at least one spreading arm tangential to the device enveloping contour. A system has two bolt-retaining devices of this type and a bolt assembly. A piece of furniture has two adjacent furniture components, wherein a bolt-retaining device of this type is introduced in each furniture component. The bolt-retaining device has a body and an expansion cap with a receiving recess held on an inner side thereof by separators. The body has at least one engaging element on the inner side thereof. The bolt-retaining device ensures a definite position of the introduced shaped bolt or a bolt assembly.

An expandable fixing device contains: a first screw and a second screw. The first screw includes a first head portion and a first extension extending downwardly from the first head portion, the first extension has first threads formed on the first head portion, the first screw further includes a screwing orifice defined in the first head portion and multiple slots formed on the first extension, and the first extension has multiple expansion portions formed on a distal end thereof and intersecting with the multiple slots. The second screw includes a second head portion and a second extension extending downwardly from the second head portion, and the second extension has second threads formed on an outer wall thereof, wherein the second extension has a strike stem and inserting into the screwing orifice via the first screw and pushes the multiple expansion portions to expand outwardly.

In certain embodiments, the present disclosure provides an undercut anchor including an attachment barrel and a cylindrical plug positioned in and moveable in the attachment barrel. The attachment barrel includes a cylindrical body, an outer rim extending outwardly and away from a bottom end of the body, and a plurality of independently pivotable gripping arms extending from a top end of the body.

A panel fastener and panel fastening system are provided. The panel fastener includes a body having a collar and an elongated shank extending from the collar. The elongated shank defines an interior space and having a penetrating tip disposed at an end opposite of the collar. The panel fastener also includes a substrate fastening portion configured to be driven into a substrate and a holding mechanism connected to the substrate fastening portion and configured to engage the substrate.

The present invention provides a hammering assembly type fixing device for a shipyard, in which the lower end of a fixture is inserted into a fixing groove formed in a fixing plate (made of a rigid bottom such as steel, concrete, rock, etc.) and the upper end of the fixture is screwed to be coupled to a separate fastening element, such that a grating, a work foothold, etc. are fixed. The hammering assembly type fixing device for a shipyard according to the present invention is configured such that a protruding flange inclined downward is integrally formed with a fixture to form a single body at a portion where an upper end and a lower end of a fixture are connected to each other, and a packing ring is provided to be inserted into the lower end of the fixture in close contact with the protruding flange. As such, as the fixture is fixed to the fixing plate by the pressing from the hammering, the hammering assembly type fixing device has the characteristics of being resistant to lateral forces and preventing breakage of the lower end due to a primary fixing by the lower end and a secondary fixing by the protruding flange. Further, the pressing force of the protruding flange of a downwardly inclined structure, and the improved sealing property by the packing ring, and the excellent foreign substance blocking effect are obtained. Moreover, the manufacturing process of the fixture is simplified, thereby reducing the manufacturing cost. Especially, the hammering assembly type fixing device for a shipyard is applied to fix a grating installed in a shipyard, so that even in high salt conditions due to the inflow of seawater through various routes in shipbuilding processes, the fixing force of the fixture with respect to the fixing plate is maximized and the airtightness by the packing ring is improved, thereby preventing the occurrence of fine gaps between the fixing plate and the fixture. Therefore, the penetration of salt is blocked, thereby preventing the corrosion of the fixture and improving durability of the fixture.

Current stripped hole repair devices operate by expanding to exert pressure against the inside of a hole into which the device is placed, and are by design suitable only for repairing a stripped or damaged hole in alignment with the original hole. Likewise, various methods exist that do not result in a smooth surface into which a new hole can be drilled. In most cases, these methods are non-permanent, temporary, non-weight-bearing devices that inadequately address the problem. The solution provided comprises a solid plastic insert with segments that break off at a desired length, into which a new hole may be drilled and a screw inserted. The method for installing the apparatus utilizes an adhesive that bonds to the medium into which it is installed. The disclosure describes a simplified and practical method to repair a stripped screw hole, and an apparatus that can be manufactured and made commercially available.