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Screws With An Extra "Bite"
These new-style screws come with patented thread serrations, which allows them to more easily penetrate wood.
  "Spax" screws feature a special 4-cut point thread serration near the tip.
  "They're more expensive than ordinary screws but worth the extra cost," says Larry Harsila, Altenloh, Brinck & Co., Inc., Bryan, Ohio. "The 4-cut thread serrations help move fibers of wood around for better holding power. They also reduce the amount of torque needed to drive the screws in. Most times you won't even need to drill a pilot hole to avoid splitting the wood."
  Another advantage is the screw head design, which can accommodate both a Phillips screwdriver and a square drive bit. "The screw head is quite deep so your screw driver fits into it better and is far less likely to spin out," says Harsila.  
  The company also offers a variety of other screw designs for specific jobs and material types. For example, its MDF screw is specially designed for medium density fiberboard and won't split the fiberboard even when used close to the edge. Screws designed for outdoors use have an additional barrier coating on them that resists corrosion. Multi-material screws for use in wood or light gauge metal can be used in masonry block or concrete, provided you pre-drill a hole. Lag screws with built-in washers are also available.
  Spax screws are available at Home Depot and Menards.
  Contact: FARM SHOW Followup, Altenloh, Brinck & Co., Inc., 02105 Williams County Road 12-C, Bryan, Ohio 43506 (ph 888 222-7729 or 419 630-2490; fax 419 630-2491; Larry.harsila@spax.us rr abc.us@spax. com; www.spax.com/usa).

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2008 - Volume #32, Issue #2