UNC Bolts & Screws

UNC (Unified Coarse) Bolts & Screws

Unified threaded fasteners were phased in on BSA, Norton, and Triumph motorcycles produced in the late 1960's and onwards. Most screws and bolts that threaded directly into alloy castings changed to UNC (Unified Coarse) threads for better holding power without fear of stripping in the softer material.

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  • 14-6101 Bolt
    14-6101 Bolt
    Diameter ⌀: 1/4 inch
    Length UH: 1/2 inch
    Thread Form: UNC 20tpi
    Hex Size: 7/16 inch AF
    Finish: Plated
    Fits: LEVEL PLUG
    NZ$ 1.40
    NZ$ 1.25
  • 14-6102 Bolt
    14-6102 Bolt
    Diameter ⌀: 1/4 inch
    Length UH: 5/8 inch
    Thread Form: UNC 20tpi
    Hex Size: 7/16 inch AF
    Finish: Plated
    NZ$ 1.15
    NZ$ 1.05
  • 14-6104 Bolt
    14-6104 Bolt
    Diameter ⌀: 1/4 inch
    Length UH: 7/8 inch
    Thread Form: UNC 20tpi
    Hex Size: 7/16 inch AF
    Finish: Plated
    NZ$ 1.15
    NZ$ 1.05
  • 14-6105 Bolt
    14-6105 Bolt
    Diameter ⌀: 1/4 inch
    Length UH: 1 inch
    Thread Form: UNC 20tpi
    Hex Size: 7/16 inch AF
    Finish: Plated
    NZ$ 1.15
    NZ$ 1.05
  • 14-6113 Bolt
    14-6113 Bolt
    Diameter ⌀: 5/16 inch
    Length UH: 5/8 inch
    Thread Form: UNC 18tpi
    Hex Size: 1/2 inch AF
    Finish: Plated
    NZ$ 1.15
    NZ$ 1.05
  • 14-6114 Bolt
    14-6114 Bolt
    Diameter ⌀: 5/16 inch
    Length UH: 3/4 inch
    Thread Form: UNC 18tpi
    Hex Size: 1/2 inch AF
    Finish: Plated
    NZ$ 1.15
    NZ$ 1.05
  • 14-6115 Bolt
    14-6115 Bolt
    Diameter ⌀: 5/16 inch
    Length UH: 7/8 inch
    Thread Form: UNC 18tpi
    Hex Size: 1/2 inch AF
    Finish: Plated
    NZ$ 1.15
    NZ$ 1.05
  • 14-6118 Bolt
    14-6118 Bolt
    Diameter ⌀: 5/16 inch
    Length UH: 1&1/2 inch
    Thread Form: UNC 18tpi
    Hex Size: 1/2 inch AF
    Finish: Plated
    NZ$ 1.40
    NZ$ 1.25
  • 14-6121 Bolt
    14-6121 Bolt
    Diameter ⌀: 5/16 inch
    Length UH: 2&1/2 inch
    Thread Form: UNC 18tpi
    Hex Size: 1/2 inch AF
    Finish: Plated
    NZ$ 1.60
    NZ$ 1.45
  • 14-6201 Bolt
    14-6201 Bolt
    BOLT,1/4UNCX1
    NZ$ 1.15
    NZ$ 1.05
  • 14-6203 Bolt
    14-6203 Bolt
    Diameter ⌀: 1/4 inch
    Length UH: 1&1/4 inch
    Thread Form: UNC 20tpi
    Hex Size: 7/16 inch AF
    Finish: Plated
    NZ$ 1.60
    NZ$ 1.45
  • 14-6211 Bolt
    14-6211 Bolt
    Diameter ⌀: 1/4 inch
    Length UH: 3 inch
    Thread Form: UNC 20tpi
    Hex Size: 7/16 inch AF
    Finish: Plated
    Fits: Rocker Box Triples
    NZ$ 5.45
    NZ$ 4.90
  • 14-6217 Bolt
    14-6217 Bolt
    Diameter ⌀: 5/16 inch
    Length UH: 1&1/4 inch
    Thread Form: UNC 18tpi
    Hex Size: 1/2 inch AF
    Finish: Plated
    NZ$ 1.85
    NZ$ 1.65
  • 14-6218 Bolt
    14-6218 Bolt
    Diameter ⌀: 5/16 inch
    Length UH: 1&3/8 inch
    Thread Form: UNC 18tpi
    Hex Size: 1/2 inch AF
    Finish: Plated
    NZ$ 2.80
    NZ$ 2.50
  • 14-6219 Bolt
    14-6219 Bolt
    Diameter ⌀: 5/16 inch
    Length UH: 1&1/2 inch
    Thread Form: UNC 18tpi
    Hex Size: 1/2 inch AF
    Finish: Plated
    Fits:
    Unit Single Crankcase
    NZ$ 4.05
    NZ$ 3.60
  • 14-6220 Bolt
    14-6220 Bolt
    Diameter ⌀: 5/16 inch
    Length UH: 1&3/4 inch
    Thread Form: UNC 18tpi
    Hex Size: 1/2 inch AF
    Finish: Plated
    NZ$ 1.40
    NZ$ 1.25
  • 14-6222 Bolt
    14-6222 Bolt
    Diameter ⌀: 5/16 inch
    Length UH: 2&1/4 inch
    Thread Form: UNC 18tpi
    Hex Size: 1/2 inch AF
    Finish: Plated
    NZ$ 1.60
    NZ$ 1.45
  • 14-6223 Bolt
    14-6223 Bolt
    Diameter ⌀: 5/16 inch
    Length UH: 2&1/2 inch
    Thread Form: UNC 18tpi
    Hex Size: 1/2 inch AF
    Finish: Plated
    NZ$ 1.40
    NZ$ 1.25
  • 14-6224 Bolt
    14-6224 Bolt
    Diameter ⌀: 5/16 inch
    Length UH: 2&3/4 inch
    Thread Form: UNC 18tpi
    Hex Size: 1/2 inch AF
    Finish: Plated
    NZ$ 2.15
    NZ$ 1.90
  • 14-6225 Bolt
    14-6225 Bolt
    Diameter ⌀: 5/16 inch
    Length UH: 3 inch
    Thread Form: UNC 18tpi
    Hex Size: 1/2 inch AF
    Finish: Plated
    NZ$ 2.70
    NZ$ 2.45
  • 14-6226 Bolt
    14-6226 Bolt
    Diameter ⌀: 5/16 inch
    Length UH: 3&1/4 inch
    Thread Form: UNC 18tpi
    Hex Size: 1/2 inch AF
    Finish: Plated
    NZ$ 2.80
    NZ$ 2.55
  • 14-6242 Bolt
    14-6242 Bolt
    Diameter ⌀: 3/8 inch
    Length UH: 4 inch
    Thread Form: UNC 16tpi
    Hex Size: 9/16 inch AF
    Finish: Plated
    NZ$ 2.15
    NZ$ 1.90
  • 14-6254 Bolt
    14-6254 Bolt
    Diameter ⌀: 7/16 inch
    Length UH: 3&1/2 inch
    Thread Form: UNC 14tpi
    Hex Size: 9/16 inch AF
    Finish: Plated
    NZ$ 2.60
    NZ$ 2.35
  • 14-6504 Screw
    14-6504 Screw
    Diameter ⌀: 1/4 inch
    Length OA: 3/4 inch
    Thread Form: UNC 20tpi
    Head Style: Countersunk Posidriv
    Finish: Plated
    NZ$ 3.15
    NZ$ 2.85
  • 14-6505 Screw
    14-6505 Screw
    Diameter ⌀: 1/4 inch
    Length OA: 7/8 inch
    Thread Form: UNC 20tpi
    Head Style: Countersunk Posidriv
    Finish: Plated
    NZ$ 1.15
    NZ$ 1.05
  • 14-6509 Screw
    14-6509 Screw
    Diameter ⌀: 1/4 inch
    Length OA: 1&3/4 inch
    Thread Form: UNC 20tpi
    Head Style: Countersunk Posidriv
    Finish: Plated
    NZ$ 1.15
    NZ$ 1.05
  • 14-6515 Screw
    14-6515 Screw
    Diameter ⌀: 1/4 inch
    Length OA: 4 inch
    Thread Form: UNC 20tpi
    Head Style: Countersunk Posidriv
    Finish: Plated
    NZ$ 5.15
    NZ$ 4.60
  • 14-6605 Screw
    14-6605 Screw
    Diameter ⌀: 1/4 inch
    Length UH: 5/8 inch
    Thread Form: UNC 20tpi
    Head Style: Fillister Posidriv
    Finish: Plated
    NZ$ 3.15
    NZ$ 2.85
  • 14-6606 Screw
    14-6606 Screw
    Diameter ⌀: 1/4 inch
    Length UH: 3/4 inch
    Thread Form: UNC 20tpi
    Head Style: Fillister Posidriv
    Finish: Plated
    NZ$ 0.90
    NZ$ 0.85
  • 14-6607 Screw
    14-6607 Screw
    Diameter ⌀: 1/4 inch
    Length UH: 7/8 inch
    Thread Form: UNC 20tpi
    Head Style: Fillister Posidriv
    Finish: Plated
    NZ$ 1.15
    NZ$ 1.05
  • 14-6608 Screw
    14-6608 Screw
    Diameter ⌀: 1/4 inch
    Length UH: 1 inch
    Thread Form: UNC 20tpi
    Head Style: Fillister Posidriv
    Finish: Plated
    NZ$ 3.05
    NZ$ 2.75
  • 14-6609 Screw
    14-6609 Screw
    Diameter ⌀: 1/4 inch
    Length UH: 1&1/4 inch
    Thread Form: UNC 20tpi
    Head Style: Fillister Posidriv
    Finish: Plated
    NZ$ 2.90
    NZ$ 2.65
  • 14-6610 Screw
    14-6610 Screw
    Diameter ⌀: 1/4 inch
    Length UH: 1&1/2 inch
    Thread Form: UNC 20tpi
    Head Style: Fillister Posidriv
    Finish: Plated
    NZ$ 4.15
    NZ$ 3.70
  • 14-6611 Screw
    14-6611 Screw
    Diameter ⌀: 1/4 inch
    Length UH: 1&3/4 inch
    Thread Form: UNC 20tpi
    Head Style: Fillister Posidriv
    Finish: Plated
    NZ$ 1.45
    NZ$ 1.30
  • 14-6612 Screw
    14-6612 Screw
    Diameter ⌀: 1/4 inch
    Length UH: 2 inch
    Thread Form: UNC 20tpi
    Head Style: Fillister Posidriv
    Finish: Plated
    NZ$ 3.20
    NZ$ 2.90
  • 14-6613 Screw
    14-6613 Screw
    Diameter ⌀: 1/4 inch
    Length UH: 2&1/4 inch
    Thread Form: UNC 20tpi
    Head Style: Fillister Posidriv
    Finish: Plated
    NZ$ 3.50
    NZ$ 3.15
  • 14-6614 Screw
    14-6614 Screw
    Diameter ⌀: 1/4 inch
    Length UH: 2&1/2 inch
    Thread Form: UNC 20tpi
    Head Style: Fillister Posidriv
    Finish: Plated
    NZ$ 1.15
    NZ$ 1.05
  • 14-6615 Screw
    14-6615 Screw
    Diameter ⌀: 1/4 inch
    Length UH: 3 inch
    Thread Form: UNC 20tpi
    Head Style: Fillister Posidriv
    Finish: Plated
    NZ$ 3.75
    NZ$ 3.40
  • 14-6620 Screw
    14-6620 Screw
    Diameter ⌀: 5/16 inch
    Length UH: 7/8 inch
    Thread Form: UNC 18tpi
    Head Style: Fillister Posidriv
    Finish: Plated
    NZ$ 1.45
    NZ$ 1.30
  • 14-7003 Screw
    14-7003 Screw
    Diameter ⌀: 1/4 inch
    Length UH: 5/8 inch
    Thread Form: UNC 20tpi
    Head Style: Allen Cap
    Finish: Plated
    NZ$ 1.15
    NZ$ 1.05
  • 14-7004 Screw
    14-7004 Screw
    Diameter ⌀: 1/4 inch
    Length UH: 3/4 inch
    Thread Form: UNC 20tpi
    Head Style: Allen Cap
    Finish: Plated
    NZ$ 1.75
    NZ$ 1.60
  • 14-7006 Screw
    14-7006 Screw
    Diameter ⌀: 1/4 inch
    Length UH: 1 inch
    Thread Form: UNC 20tpi
    Head Style: Allen Cap
    Finish: Plated
    NZ$ 2.40
    NZ$ 2.15
  • 14-7007 Screw
    14-7007 Screw
    Diameter ⌀: 1/4 inch
    Length UH: 1&1/4 inch
    Thread Form: UNC 20tpi
    Head Style: Allen Cap
    Finish: Plated
    NZ$ 1.40
    NZ$ 1.25
  • 14-7008 Screw
    14-7008 Screw
    Diameter ⌀: 1/4 inch
    Length UH: 1&1/2 inch
    Thread Form: UNC 20tpi
    Head Style: Allen Cap
    Finish: Plated
    NZ$ 1.15
    NZ$ 1.05
  • 14-7009 Screw
    14-7009 Screw
    Diameter ⌀: 1/4 inch
    Length UH: 1&3/4 inch
    Thread Form: UNC 20tpi
    Head Style: Allen Cap
    Finish: Plated
    NZ$ 1.60
    NZ$ 1.45
  • 14-7010 Screw
    14-7010 Screw
    Diameter ⌀: 1/4 inch
    Length UH: 2 inch
    Thread Form: UNC 20tpi
    Head Style: Allen Cap
    Finish: Plated
    NZ$ 1.40
    NZ$ 1.25
  • 14-7011 Screw
    14-7011 Screw
    Diameter ⌀: 1/4 inch
    Length UH: 2&1/4 inch
    Thread Form: UNC 20tpi
    Head Style: Allen Cap
    Finish: Plated
    NZ$ 1.95
    NZ$ 1.75
  • 14-7012 Screw
    14-7012 Screw
    Diameter ⌀: 1/4 inch
    Length UH: 2&1/2 inch
    Thread Form: UNC 20tpi
    Head Style: Allen Cap
    Finish: Plated
    NZ$ 2.25
    NZ$ 2.00
  • 14-7013 Screw
    14-7013 Screw
    Diameter ⌀: 1/4 inch
    Length UH: 2&3/4 inch
    Thread Form: UNC 20tpi
    Head Style: Allen Cap
    Finish: Plated
    NZ$ 2.15
    NZ$ 1.90
  • 14-7017 Screw
    14-7017 Screw
    Diameter ⌀: 5/16 inch
    Length UH: 5/8 inch
    Thread Form: UNC 18tpi
    Head Style: Allen Cap
    Finish: Plated
    NZ$ 1.90
    NZ$ 1.70

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