TABLE 124. 

 WEIGHTS OF WASHERS AND TRACK BOLTS. 



WEIGHTS OF LAG SCREWS. 

 Pounds per Hundred. (Kent's Pocket-book.) 



For American Bridge Company's Standard Lag Screws see Table 123. 



WROUGHT IRON OR STEEL PLATE ROUND WASHERS. 



Diam 



In. 



Hole. 



In. 



Thick- 

 ness 

 B.W.G 



No. 



Bolt. 



In. 



Num- 

 ber in 

 200 Lb. 



Diam, 



In. 



Hole. 



In. 



Thick- 

 ness 

 B.W.G 



No. 



Bolt. 



In. 



Num- 

 ber in 

 200 Lb 



Diam, 



In. 



Hole. 



In. 



Thick- 

 ness 

 B.W.G. 



No. 



Bolt. 



In. 



Num- 

 ber in 

 200 Lb 



A 

 I 



18 

 16 

 16 





85200 



34800 



2620O 



I44OO 



8400 



5800 



if 



2 



2f 



12 

 IO 

 IO 



9 

 9 

 9 



4600 

 2600 



22OO 

 I6OO 

 I2OO 



it 

 if 

 it 

 if 

 if 

 if 



it 



if 



900 

 6OO 



570 

 460 

 432 

 366 



STANDARD CAST, O G WASHERS. 



Diam. 

 of Bolt. 



Bottom 

 Diam. 



Top 

 Diam. 



Hole. 



Thick- 

 ness. 



Weight. 



Diam. 

 of Bolt. 



Bottom 

 Diam. 



Top 

 Diam. 



Hole. 



Thick- 

 ness. 



Weight, 



In. 



In. 



In. 



In. 



In. 



Lb. 



In. 



In. 



In. 



In. 



In. 



Lb. 



If 



if 



2t 



if 



2* 



It 

 It 

 I* 

 If 



2 



.a 



44 



6 



61 



71 



2* 



it 



+} 



it 

 il 



I 



!' 



9| 



i?i 



TRACK BOLTS. 

 With United States Standard Hexagon Nuts. 



Lb. 



45 to 85 



In. 



In. 



Il 



230 6.3 



240 6.0 



2545-7 

 260 5.5 

 266 5.4 



Lb. 



45 to 85 

 30 to 40 



In. 



In. 



283 

 375 



4103 



435 



465 



Lb. 



20 to 30 



In. 



5x3 



5x2 



715 



760 

 800 

 820 



242 



