The present disclosure relates to a screw connection comprising a support component, an additional component and a screw to fasten the support component to the additional component. The support component has a tube made of thermoplastic foam to accommodate the screw in a friction and positive fit. The screw has a blunt-edged thread, enabling the screw to compress the foam in the tube as it is driven in. The ratio of the inner diameter of the tube to the diameter of the screw depends on the degree of foaming of the tube and decreases as the degree of foaming increases. In comparison to conventional screws, the threads of the screw of the present disclosure penetrate less deeply into the foam or they displace it, preventing damage to the tube while enabling a tight fit.

The present disclosure provides a fastener. The fastener includes an elongated body having a first end and a second end opposite the first end. The fastener also includes a head having a first surface and a second surface opposite the first surface. The first end of the elongated body is coupled to the second surface of the head, and a diameter of the head is greater than a diameter of the elongated body. The fastener also includes a sleeve positioned over at least a portion of the elongated body and the second surface of the head. The fastener also includes a plurality of textured elements positioned on an exterior surface of the sleeve adjacent the second surface of the head. One or more of the plurality of textured elements extend from the exterior surface of the sleeve to the first surface of the head.

The present disclosure provides a fastener. The fastener includes an elongated body having a first end and a second end opposite the first end. The fastener also includes a head having a first surface and a second surface opposite the first surface. The first end of the elongated body is coupled to the second surface of the head, and a diameter of the head is greater than a diameter of the elongated body. The fastener also includes a sleeve positioned over at least a portion of the elongated body and the second surface of the head. The fastener also includes a plurality of textured elements positioned on an exterior surface of the sleeve adjacent the second surface of the head. One or more of the plurality of textured elements extend from the exterior surface of the sleeve to the first surface of the head.

A uniquely configured, hardened collar nut for use in the installation and retrofitting of light poles, and method of using same.

A uniquely configured, hardened collar nut for use in the installation and retrofitting of light poles, and method of using same.

A bolt which can prevent seizure is provided due to the bolt being installed obliquely. A guide portion is formed between a groove portion formed at a distal end portion of the threaded portion and a surface end position on a base end side of the tapered surface, a starting end portion of the guide portion being an intersection between the surface end position on the base end side of the tapered surface and a helix according to the groove portion, a terminal end portion of the guide portion overlaps with the distal end portion of the threaded portion, an angle in the direction around the axis of the bolt from the starting end portion to the terminal end portion is set in the range of 90° to 360°.

A bolt which can prevent seizure is provided due to the bolt being installed obliquely. A guide portion is formed between a groove portion formed at a distal end portion of the threaded portion and a surface end position on a base end side of the tapered surface, a starting end portion of the guide portion being an intersection between the surface end position on the base end side of the tapered surface and a helix according to the groove portion, a terminal end portion of the guide portion overlaps with the distal end portion of the threaded portion, an angle in the direction around the axis of the bolt from the starting end portion to the terminal end portion is set in the range of 90° to 360°.

A fastener including a body that extends between a first end and a second end and a head that is engaged with the body at the first end. Further, the body includes a first section with a first outer diameter and a first set of threads oriented in a first direction. The body further includes a second section with a second outer diameter and a second set of threads oriented in a second direction, opposite the first direction. Also, the first section is positioned closer to the head than the second section, and the first set of threads is self-tapping.

A fastener including a body that extends between a first end and a second end and a head that is engaged with the body at the first end. Further, the body includes a first section with a first outer diameter and a first set of threads oriented in a first direction. The body further includes a second section with a second outer diameter and a second set of threads oriented in a second direction, opposite the first direction. Also, the first section is positioned closer to the head than the second section, and the first set of threads is self-tapping.

A sheet metal screw includes one or more of a tapered self-drilling tip, an asymmetric thread angle and/or a trilobular thread edge profile.