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    • Tungsten - Bolt

      Tungsten was isolated in 1783 by J.J. and F. Elhuyar in Vergara, Spain. Tungsten metal is lustrous and silvery white in colour, and does not occur naturally (it has an abundance of 1 ppm in the earth's crust). It is found in the ore Wolframite, a tungstate of iron and manganese, (FeMn)WO₄, which is converted to the trioxide and then reduced to the metal by reduction in hydrogen (carbon cannot be used as the very stable carbide would result). Tungsten metal is relatively inert, resisting attack by oxygen, acids and alkalis, although it will react with fused, oxidising alkali media. It has the highest melting point of all metals and, when pure, it can be worked with relative ease; however, the presence of impurities renders tungsten extremely brittle and, therefore, difficult to fabricate. The high melting point of tungsten makes it suitable for use as electric filaments (e.g. in electric light bulbs). It is also the basis of a range of alloys containing tungsten, copper and nickel which are used for radiation shielding as they provide a 50% increase in density compared to lead. Tungsten and its alloys also find uses in military applications (e.g. armour and shells), as well as counter-balance materials. Tungsten carbide powder (with possible additions of titanium and tantalum carbides) along with nickel or cobalt powders, are compressed and sintered to produce cemented carbides. These products are used in place of high speed steel to form the tip of cutting and drilling tools, or for parts which will be subjected to heavy useage.Bolt - A threaded pin that can be screwed into a nut or a tapped hole to fasten items together. Bolts are available with different head styles and also in metric and inch-threaded sizes.

    9 results

    Product
    Product W-00-BT-000130 Tungsten - Bolt Head Style Hexagonal Size M3 x 10mm Pitch 0.5mm Standard ISO 4017:2011 Quantity 10 Piece - 50 Piece
    Product W-00-BT-000135 Tungsten - Bolt Head Style Hexagonal Size M3 x 30mm Pitch 0.5mm Standard ISO 4017:2011 Quantity 10 Piece - 50 Piece
    Product W-00-BT-000138 Tungsten - Bolt Head Style Hexagonal Size M3 x 50mm Pitch 0.5mm Standard ISO 4017:2011 Quantity 10 Piece - 50 Piece
    Product W-00-BT-000140 Tungsten - Bolt Head Style Hexagonal Size M4 x 10mm Pitch 0.7mm Standard ISO 4017:2011 Quantity 10 Piece - 50 Piece
    Product W-00-BT-000145 Tungsten - Bolt Head Style Hexagonal Size M4 x 30mm Pitch 0.7mm Standard ISO 4017:2011 Quantity 10 Piece - 50 Piece
    Product W-00-BT-000148 Tungsten - Bolt Head Style Hexagonal Size M4 x 50mm Pitch 0.7mm Standard ISO 4017:2011 Quantity 10 Piece - 50 Piece
    Product W-00-BT-000150 Tungsten - Bolt Head Style Hexagonal Size M5 x 10mm Pitch 0.8mm Standard ISO 4017:2011 Quantity 10 Piece - 50 Piece
    Product W-00-BT-000155 Tungsten - Bolt Head Style Hexagonal Size M5 x 30mm Pitch 0.8mm Standard ISO 4017:2011 Quantity 10 Piece - 50 Piece
    Product W-00-BT-000158 Tungsten - Bolt Head Style Hexagonal Size M5 x 50mm Pitch 0.8mm Standard ISO 4017:2011 Quantity 10 Piece - 50 Piece
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