54p 



STEEL ROOF TRUSSES AND MILL BUILDINGS. 



STANDARD LAG SCREWS, HOOK BOLTS AND WASHERS. 

 AMERICAN BRIDGE COMPANY. 



LAG SCREWS 



Length 



Diameter 



Diam 



B" 

 16 



\ 



J6 



I 



9. 

 16 



i 



I 



Min 

 Length I 



ft" 



Ji 



fi 



/i 



2 



2 



Max- 

 '.ength 



6" 



6 



8 



10 

 12 

 12 

 12 

 12 

 12 

 12 

 12 

 12 



No-Thread 

 perinch 



5 

 4 

 3 



Length of Lag 

 Screw & Head 



Length 



of Screw of Head 





3 



3* 



4 



4i 



5 



*t 



6 

 7 

 8 

 9 

 10 

 11 

 12 



Length 



1" 

 '* 



2 



2i 



3 

 3* 



5 

 5 

 5 



Heads are the same as for square head bolts 

 Threaded portion is not tapered except at point: 



BEAM CLAMP 

 / Cored Ho/e 



5/ze 



Dimensions 0fC/3Mp\ Weight 

 in Ibs- 



18" 



15 



12 



l&B 



C 



7" 



8 



D 



0-4 

 0-4 

 0-4 

 0-4 

 0-4 



OGEE WASHERS 



16 Recess for naif lock 



5ize 

 Bolt 



Dimensions of Washer 



A B C D R r 



ff 



H 



4 



4 



II" 



16 

 73 

 1> 

 J/ 

 32 



31 



5" 



Weight 

 in Pounds 



0-4 

 0-7 

 1-0 



SKEWBACK WASHERS 



Used 

 With 



Dimensions of Washers 



M 



H 



4" 



If 



fi 



i*. 



'4 



2 



D 



I" 



/ 



/ 



R 



4% 



Weight 

 if? Pounds 



1-2 



1'8 

 2-5 



2-7 

 3-0 



ftooK BOLTS, % or? . 



V 



In biffing Hook Bolts give dimensions A, 

 5 &L; all other dimensions are standard- 

 Unless otherwise specified, 5" will 

 be made "- Hex- nuts furnished- 



CAST/ROff CUP 



54 



