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Int. J. Mol. Sci. 2008, 9(4), 626-637; doi:10.3390/ijms9040626
Article

Determination of Screw and Nail Withdrawal Resistance of Some Important Wood Species

Received: 1 February 2008; in revised form: 10 April 2008 / Accepted: 23 April 2008 / Published: 24 April 2008
(This article belongs to the Section Material Sciences and Nanotechnology)
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Abstract: In this study, screw and nail withdrawal resistance of fir (Abies nordmanniana), oak (Quercus robur L.) black pine (Pinus nigra Arnold) and Stone pine (Pinus pinea L.) wood were determined and compared. The data represent the testing of withdrawal resistance of three types of screws as smart, serrated and conventional and common nails. The specimens were prepared according to TS 6094 standards. The dimensions of the specimens were 5x5x15cm and for all of the directions. Moreover, the specimens were conditioned at ambient room temperature and 65±2% relative humidity. The screws and nails were installed according to ASTM-D 1761 standards. Nail dimensions were 2.5mm diameter and 50 mm length, conventional screws were 4x50mm, serrated screws were 4x45mm and smart screws were 4x50mm. Results show that the maximum screw withdrawal resistance value was found in Stone pine for the serrated screw. There were no significant differences between Stone pine and oak regarding screw withdrawal resistance values. Conventional screw yielded the maximum screw withdrawal resistance value in oak, followed by Stone pine, black pine and fir. Oak wood showed the maximum screw withdrawal resistance value for the smart screw, followed by Stone pine, black pine, and fir. Oak wood showed higher nail withdrawal resistances than softwood species. It was also determined that oak shows the maximum nail withdrawal resistance in all types. The nail withdrawal resistances at the longitudinal direction are lower with respect to radial and tangential directions.
Keywords: Screw; nail; withdrawal resistance; oak; Stone pine; black pine; and fir. Screw; nail; withdrawal resistance; oak; Stone pine; black pine; and fir.
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Aytekin, A. Determination of Screw and Nail Withdrawal Resistance of Some Important Wood Species. Int. J. Mol. Sci. 2008, 9, 626-637.

AMA Style

Aytekin A. Determination of Screw and Nail Withdrawal Resistance of Some Important Wood Species. International Journal of Molecular Sciences. 2008; 9(4):626-637.

Chicago/Turabian Style

Aytekin, Alper. 2008. "Determination of Screw and Nail Withdrawal Resistance of Some Important Wood Species." Int. J. Mol. Sci. 9, no. 4: 626-637.


Int. J. Mol. Sci. EISSN 1422-0067 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert