One Good Turn: A Natural History Of The Screwdriver And The Screw
The seeds of Witold Rybczynski’s elegant and illuminating new book were sown by The New York Times, whose editors asked him to write an essay identifying “the best tool of the millennium.” The award-winning author of Home: A Short History of an Idea and, most recently, A Clearing in the Distance: Frederick Law Olmsted and America in the Nineteenth Century, Rybczynski once built a house using only hand tools. His intimate knowledge of the toolbox — both its contents and its history — serves him beautifully on his quest.
One Good Turn is a story starring Archimedes, who invented the water screw and introduced the helix, and Leonardo, who sketched a machine for carving wood screws. It is a story of mechanical discovery and genius that takes readers from Ancient Greece to Victorian Glasgow, from weapons design in the Italian Renaissance to car design in the age of American industry. Rybczynski writes an ode to the screw, without which there would be no
Price:$25.80
GLS Audio 6 Post Binding Banana Plug Wall Plate White (6 Posts for 3 Speakers)
Our GLS Audio white wall plates can be disassembled for use in your own situation such as single gang, dual gang, triple gang, etc electrical boxes. Anti-spin Hex design prevents posts from spinning. Our plates can be used with any standard style of Decora plate. Our plates only come in white, but you can to use your own Decora plate if you wish. Our wall plates have polarity color coded gold posts which you can also remove entirely from the plate.
Price:$23.99
Charles Leonard Inc. Aluminum Screw Post Extensions, 0.25 Inch Length, Silver, 100 per Box (3730Le)
Aluminum screw posts for albums, scrapbooks, and catalogs. 100 per box.
Price:$27.99
Nylon Machine Screw, Binding Head, Slotted Drive, #8-32, 9/32″ Length (Pack of 100)
Machine Screws, also referred to as Machine Bolts, are often used with nuts or driven into tapped holes. They come in a variety of head types and drive styles, but are generally available in smaller sizes.
Nylon 6/6 is a general purpose thermoplastic with outstanding resistance to organic chemicals, acids and alkalis. Nylon wears well against other surfaces; it is readily machinable and may be milled, turned and cut with conventional machine tools. It does exhibit some dimensional swelling in wet applications which should be taken into account with its use. Tensile strength of this material is 12,000 psi (pounds per square inch).
Generally used in electrical or radio work, these fasteners are slightly undercut under the head. That provides the ability to bind stranded wire tightly and prevent fraying. Common applications for slotted screws include woodworking, although the drive style is not designed to be used with power drivers.
A threaded fastener’s size
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Custom Replacement 4mm Binding Post & Dice Contact Screw
Keep your tattoo machine running at its peak performance by replacing the binding post regularly. These tattoo machine binding post have a 4mm contact screw hole and come with a unique clear acrylic die set on top of the contact screw.
Designed to work with most standard tattoo machines these front binding post are made from high quality brass and has been machined to perfection.
Price:$19.99
Stainless Steel Machine Screw, Binding Head, Slotted Drive, #5-40, 3/8″ Length (Pack of 100)
Machine Screws, also referred to as Machine Bolts, are often used with nuts or driven into tapped holes. They come in a variety of head types and drive styles, but are generally available in smaller sizes.
Stainless steels are used for their corrosion resistance, high-temperature strength, scaling resistance, and low-temperature toughness. These properties account for their extremely wide use in practically every industry. Austenitic Stainless Steels are alloys of iron and carbon that contain between 16% and 30% Chromium, a maximum of 0.15% carbon, along with Nickel (or Manganese), and other alloying elements. The chromium, which helps develop a passive surface oxide film, provides corrosion resistance in stainless steels. Austenitic Stainless Steels are designated by a 3 digit SAE Stainless Steel Grade beginning with the number 3 (e.g. 304, 316). Another common naming convention for Austenitic Stainless Steels are 18/8, 18/10, 18/0, etc. where the 18 refers to the
Price:$9.96
Terk 8-Hole Speaker Connector (SC8W) (SC8W)
10-22-2007 – Brand New Item. Description – TERK SC-8W 8-Post Speaker Connector
Price:$24.99
6-32 x 1/2 Slotted Binding Machine Screw (20 pieces)
6-32 x 1/2 Slotted Binding Machine Screw
Type: Binding Post Screw
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CWB Wakeboard Binding Clamp w/4 Screws
CWB Wakeboard Binding Replacement Clamps for 8″ plate. Set of 4.
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GLS Audio 2 Post Binding Banana Plug Wall Plate White (2 Posts for 1 Speaker.)
Our GLS Audio white wall plates can be disassembled for use in your own situation such as single gang, dual gang, triple gang, etc electrical boxes. Anti-spin Hex design prevents posts from spinning. Our plates can be used with any standard style of Decora plate. Our plates only come in white, but you can to use your own Decora plate if you wish. Our wall plates have polarity color coded gold posts which you can also remove entirely from the plate.
Price:$21.99
