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Woodscrews for Making Beekeeping Kit |
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These are mass produced by fully automatic machinery. They are consistent in quality and inexpensive. The double helix only requires half the number of turns to insert, compared to single start threaded types. |
Stainless Steel Screws Less likely to corrode and harder than conventional types. Their usefulness is offset by a considerably higher price. |
Chipboard screws These are characterised by the small core diameter and sharp lands. They are good for beekeeping kit as they only require a small clearance hole which the sharp thread pulls itself through. They are often made of harder grades of steel than conventional wood screws. They are often finished black or grey. |
Dry Lining Screws These have a thin shank and a self cutting point that enables them to be used without a pilot hole or a very small diameter one. They are often bugle headed and thus do not require countersinking. |
Screw head Shape There are a multitude of types of head... Countersunk (1), Round Head (2), Cheese Head (3), Pan Head (4), Bugle Head (5), Dome Head (6), Instrument Head (7) and System Zero Head. (Of these, Cheese Head and Dome Head are rare in wood screws.) |
Screw Driving Recesses (1)... Slotted, (2)... Phillips, (3)... Posidrive, (4)... Cequatre or Square Drive, (5)... Allen Socket and (6)... Combination. |
Originated... 27 September 2001, Revised... 14 July 2003, New Domain... 17 May 2004, Upgraded... 17 August 2004, |