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Class Information
Number: 411/426
Name: Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener > Externally threaded fastener element, e.g., bolt, screw, etc. > Thread or shank structure > Shank structure > Tapered
Description: Subject matter wherein the shank defines a conical surface.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8419332 Non-dimpling fastener Apr. 16, 2013
8348572 Hole-forming and thread-forming screw Jan. 8, 2013
8192123 Drywall fastener Jun. 5, 2012
8083453 Screw Dec. 27, 2011
7959393 Screw comprising a thread-forming thread, blank for the production of said screw, and screw connection Jun. 14, 2011
7694835 Drafted neck finish having angled thread face and closure package Apr. 13, 2010
7322978 Bone anchors for use in attaching soft tissue to a bone Jan. 29, 2008
7255523 Dual threaded screw for composite materials Aug. 14, 2007
6846142 Screw for screwing into a material of low strength Jan. 25, 2005
6824331 Screw form anchor device Nov. 30, 2004
6796761 Bolt and nut Sep. 28, 2004
6494655 Self-tapping screw and method for joining thin workpieces Dec. 17, 2002
6419436 Auger-like drywall screw Jul. 16, 2002
6264677 Wedge screw suture anchor Jul. 24, 2001
6261040 Self-tapping fastener Jul. 17, 2001
6250866 Self-drilling, self-tapping screw for concrete blocks Jun. 26, 2001
6158938 Anti-cross threading fastener Dec. 12, 2000
6120227 Self-aligning bolt Sep. 19, 2000
6089806 Blank for self-tapping fastener Jul. 18, 2000
6086303 Distance screw Jul. 11, 2000
6083227 Bone screw and method for manufacturing said screw Jul. 4, 2000
6077013 Bolt equipped with pilot Jun. 20, 2000
6071051 Casting repair apparatus and method Jun. 6, 2000
6062786 Anti-cross treading fastener lead-in point May. 16, 2000
6045312 Fastener having primary and secondary threads Apr. 4, 2000
6030162 Axial tension screw Feb. 29, 2000
5964768 Tapered bone screw with continuously varying pitch Oct. 12, 1999
5951560 Wedge orthopedic screw Sep. 14, 1999
5921735 Lobular fastener with rectilinear pitch profile Jul. 13, 1999
5897280 Self perforating and thread forming connecting element Apr. 27, 1999
5890861 Retaining element for multipart connection units such as screw connections and the like Apr. 6, 1999
5891146 Wedge orthopedic screw Apr. 6, 1999
5882162 Driving screw Mar. 16, 1999
5868356 Fastener system using biangular countersink geometry Feb. 9, 1999
5863167 Drilling screw for fixing gypsum board to thin steel plate Jan. 26, 1999
5779417 Fastener having primary and secondary threads Jul. 14, 1998
5738685 Osteosynthesis device Apr. 14, 1998
5704750 Multiple use screw with tapered threads Jan. 6, 1998
5599149 Self-tapping floor screw Feb. 4, 1997
5492442 Bone screw with improved threads Feb. 20, 1996
5456685 Interference screw having a tapered back root Oct. 10, 1995
5447401 Fastener for securing a structural component to a carpet pad Sep. 5, 1995
5425407 Screw plug for tire punctures Jun. 20, 1995
RE34969 Masonry screw anchor Jun. 13, 1995
5417533 Bone screw with improved threads May. 23, 1995
5403136 Threaded fastener especially for orthopaedic purposes Apr. 4, 1995
5397356 Pin for securing a replacement ligament to a bone Mar. 14, 1995
5384939 Fixing element for holding a mat Jan. 31, 1995
5381606 Aeration devices and methods Jan. 17, 1995
5356253 Sheet metal screw Oct. 18, 1994

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