Hi-shear Corporation

Dennis Schultz

A fastener for installation into a workpiece which may be installed by either a swaging operation or a torquing operation. The fastener includes an enlarged protruding head which is proximal to a substantially cylindrical smooth shank portion. A threaded shank portion positioned distal to the smooth shank portion includes a male thread which is sufficiently strong to have a swage collar swaged onto it. Distal to the threaded shank portion is a pin tail portion having a surface which is configured to engage a tool. Positioned between the threaded shank portion and the pin tail portion is a breakneck groove having a lower tensile strength than any other portion of the fastener. The tensile strength of the breakneck groove is controlled such that the fastener severs within the breakneck groove when a preset range of tension is applied to the pin tail portion by the tool.

Pull stem fastener with pull groove for swaging collars

A drive socket for a male threaded fastener includes three rounded lobes of equal radius which are located equidistant from the center of the fastener and 120&#xb0; apart from each other. The drive socket also includes three flat surfaces, each flat surface being located opposite one of the lobes and equidistant from the center of the fastener. Another embodiment of a drive socket includes a first set of three lobes and a second set of three lobes, each lobe being of equal radius and equidistant from the center of the fastener. The lobes of the first set are 120&#xb0; apart and the lobes of the second set are also 120&#xb0; apart and 60&#xb0; apart from the lobes of the first set. Each of the lobes of the first set includes a flat surface which is adjacent and tangential to the radius portion of the lobe.

Lobed drive for hi-lite fastener

A threaded insert for providing stronger threads to a parent material. The threaded insert includes a bushing portion having male threads on the external surface and female threads within an internal bore. The threaded insert also includes keys which lock the threaded insert into a threaded hole within the parent material. The keys are positioned within slots along the external surface of the bushing portion of the threaded insert. The slots include two substantially parallel walls which are substantially perpendicular to a bottom surface of the slots. A method for assembling the threaded insert reduces the tendency of the keys to be installed offset from the bottom surface of the slots.

Threaded insert for fasteners

A fastener for installation into an interference fit hole within a structure. The fastener may be installed through automated installation methods. The fastener includes an enlarged protruding head at a proximal end of the fastener. Distal the head is a substantially cylindrical shoulder portion. The shoulder portion is coated with a lubricant to facilitate insertion of the shoulder portion into the interference fit hole within the structure. A threaded portion having a male thread is positioned distal to the shoulder portion. An aperture having a curved shape and extending into the fastener is positioned on a distal face of the fastener. The aperture may taper proximally into the fastener.

Light weight fastener for use on interference fits in automation

A drive socket for a male threaded fastener includes a plurality of rounded lobes of equal radius which are located equidistant from the center of the fastener and an equal distance from each other. The drive socket also includes flat surfaces located opposite the lobes and equidistant from the center of the fastener. Another embodiment of a drive socket includes a first set of lobes and a second set of lobes, each lobe being of equal radius and equidistant from the center of the fastener. The lobes of the first set are equidistant apart and the lobes of the second set are also equidistant apart and equidistant apart from the adjacent lobes of the first set on either side of the lobe of the second set. Each of the lobes of the first set includes a flat surface which is adjacent and tangential to the radius portion of the lobe.

Pull stem hi-lite pin with pull groove for swaging collars

A drive socket for a male threaded fastener includes three rounded lobes of equal radius which are located equidistant from the center of the fastener and 120&deg; apart from each other. The drive socket also includes three flat surfaces, each flat surface being located opposite one of the lobes and equidistant from the center of the fastener. Another embodiment of a drive socket includes a first set of three lobes and a second set of three lobes, each lobe being of equal radius and equidistant from the center of the fastener. The lobes of the first set are 120&deg; apart and the lobes of the second set are also 120&deg; apart and 60&deg; apart from the lobes of the first set. Each of the lobes of the first set includes a flat surface which is adjacent and tangential to the radius portion of the lobe.

Growing community of inventors

San Juan Capistrano, CA, United States of America

Dennis Schultz