Builder's hardware; a manual for architects, builders and house furnishers . WIRE No. Diarn. ® 17. .058 © 1(3. .005 €> 15. .072 © 14. .083 €> 13. .095 ® 12. .100 © 11. .120 ^) 10- -134 © 9. .148 ft 8. .165 Fig. 18. Diameters of Wire. From American Screw American Screw Gauge. 2Okl Standard Birmingham Gauge. t= r-- i fc -J L -1 b < I 1 1 J (? —, -a 26 BUILDERS HARDWARE. ?Chapter in. wood-screws in the market. Figure 18 gives the different gauges in use from zero to thirty. Iron screws are finishedwith either a bronze, japanned, lacquered on tinned & F
Builder's hardware; a manual for architects, builders and house furnishers . WIRE No. Diarn. ® 17. .058 © 1(3. .005 €> 15. .072 © 14. .083 €> 13. .095 ® 12. .100 © 11. .120 ^) 10- -134 © 9. .148 ft 8. .165 Fig. 18. Diameters of Wire. From American Screw American Screw Gauge. 2Okl Standard Birmingham Gauge. t= r-- i fc -J L -1 b < I 1 1 J (? —, -a 26 BUILDERS HARDWARE. ?Chapter in. wood-screws in the market. Figure 18 gives the different gauges in use from zero to thirty. Iron screws are finishedwith either a bronze, japanned, lacquered on tinned & F. Corbin also manufacture copper, bronzed, and silver-. 30. .4520 00. .380 000. .425 0000. .454 Fig. I 8. Continued SCREWS. plated screws. These and a few special varieties are kept instock by most dealers. The preceding tables give the sizes,prices, etc., of iron, brass and nickel-plated screws, compiledfrom the catalogues of the American Screw Company, andP. & F. Corbin. Nickel-plating increases the foregoing prices as follows: Chapter III. Length. Guage. On Iron. On Brass. h No. 4 $ $ 1 6 2 9 3 14 Intermediate sizes approximately at the same ratio. Discount: 75 and 66 %. Besides the ordinary wood-screws, the only other kinds usedconstructively to any extent by builders are lag-screws, andhand-rail screws. The former are more commonly knownas coach-screws, and are manufactured in 128 different sizes Lag-screws. TABLE OF GIMLET-POINT per hundred. Discount: 66§%. Diameterin inches. Length under the Head. li 2* 4 8 10 12 1 4 $ $ $ 516 •• 3 8 3.
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