The Hillman Group, Inc.

Farhad Lajewardi

Michael K Falkenstein

Dale Gene Malott

Shreenivas Iyer

Beesham Mahadeo

Hamid Faghidi

Ronald Scott Anderson

Screw

A wood screw includes a head end, a shank and a tapered end, the head end including a tool engaging part, the head end located at a first end of the shank and the tapered end located at a second end of the shank. A thread is formed along the shank. The head end includes a neck running from the first end of the shank to a head cap, wherein the head cap includes an underside facing the tapered end, wherein the underside includes a plurality of serrations extending around the underside, each serration having a leading face and a trailing face that define a cutting edge, wherein the trailing face of each serration tapers away from the tapered end. A reaming section may be provided between the thread and the head end. The thread may include a notch configuration. The thread may be a dual start thread.

Wood screw

A structural screw usable in multiple different substrates/materials includes a head end, a shank and a tapered end, the head end including a tool engaging part, the head end located at a first end of the shank and the tapered end located at a second end of the shank. A thread is formed along the shank, wherein the thread begins on the tapered end, extends onto the shank and terminates at a first axial location along the shank that is spaced from the head end. The thread (i) is a multiple start thread formed by at least a first helical thread and a second helical thread and/or (ii) includes a thread angle of between fifteen degrees and thirty degrees. The screw may also include a reaming section with leading and trailing wedge sections and/or an asymmetric notch pattern along at least part of the thread edge.

Structural screw

A gate latch assembly includes a first door mountable portion including a first body and carrying a pivotable latch bar that extends outward from a side of the first body, and a first handle part operatively connected to effect pivot of the latch bar when the first handle is rotated, a second door mountable portion including a second body and carrying a pivot bar, and a second handle part operatively connected to effect pivot of the pivot bar when the second handle is rotated. The gate latch assembly can be assembled in either a first configuration to permit rotation of the pivot bar away from its neutral position in only a first direction, or a second configuration to permit rotation of the pivot bar away from its neutral position in only a second direction that is opposite the first direction.

Adjustable gate latch assembly

A cement board screw a high thread that begins on the tapered end, extends onto the shank and terminates at a second axial location along the shank. The high thread defines a high peripheral edge, where a leading flank and a trailing flank meet at the high peripheral edge and together define a high thread angle that is between about thirty degrees and about fifty-five degrees. A low thread begins on the tapered end, extends onto the shank and terminates substantially at a first axial location along the shank such that an axial length of the low thread is less than an axial length of the high thread. The low thread includes a leading flank and a trailing flank that meet at a low peripheral edge and together define a low thread angle that is between about fifty degrees and about seventy degrees.

Screw-type fastener for cement board

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.

Sheet metal screw

A screw includes: a head end, a shank and a tapered end, the head end including a tool engaging part, the head end located at one end of the shank and the tapered end located at an opposite end of the shank, wherein a thread is formed along the shank, the thread begins on the tapered end, extends onto the shank and terminates at a set location short of the head end, the thread being a right-hand thread and having a peripheral edge, at least a first helical portion of the peripheral edge includes a plurality of notches and a second helical portion of the thread lacks any notches, wherein the first helical portion is closer to the tapered end than the second helical portion, wherein the head includes an underside formed by a frustoconical part with a plurality of nibs. The head may also include an outer ledge.

Screw-type fastener

A screw for use concrete and hurricane applications includes a head end, a shank and a tapered end. A high thread begins on the tapered end, extends onto the shank and terminates at a first axial location along the shank, wherein the high thread defines a high peripheral edge, and at least a first helical portion of the high peripheral edge includes a plurality of notches and the first helical portion extends from on or proximate to the tapered end and substantially to the first axial location. A low thread begins on the tapered end, extends onto the shank and terminates substantially at the first axial location such that an axial length of the low thread is substantially the same as and contiguous with an axial length of the high thread. The low thread defines a low peripheral edge that is free of any notches.

Screw-type fastener for concrete and hurricane resistance applications

A screw includes at least one helical thread with a peripheral edge having notched regions spaced apart by notch-free regions. An underside of a head of the screw includes projecting nibs.

Screw type fastener

A threaded fastener includes a head end, a shank and an entry end, the head end located at one end of the shank and the entry end located at an opposite end of the shank. The head end includes an end face with a drive recess configured for being driven by multiple drive bit shapes, including a star or six lobe drive, a Phillips drive, a square drive and a flat blade drive.

Combination recess for driven fastener

A multi-thread screw includes a head end, a shank and a tapered end. Both a high thread and a low thread begin on the tapered end and extend onto the shank. The tapered end of the thread may include a polygonal cross-sectional shape.

A multi-thread screw includes a head end, a shank and a tapered end. Both a high thread and a low thread begin on the tapered end and extend onto the shank. A set of intermediate threads are located on the shank portion only and overlap with and intersect at least part of the high thread.

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Toronto, Canada

Farhad Lajewardi