ART No. 9053 Button Head Socket Screw

*Button Head Sockets

UNC/UNF

Unified National Coarse / Fine

S350 - UNC/UNF Bare Steel

ANSI/ASME B18.3
2003

 

Diameter - UNC #6-32#8-32#10-241/4-205/16-183/8-161/2-135/8-11
Diameter Code 006 008 010 014 016 018 024 026
t min. .044 .052 .070 .087 .105 .122 .175 .210
s 5/64 3/32 1/8 5/32 3/16 7/32 5/16 3/8
.078 .094 .125 .156 .188 .219 .312 .375
k max. .073 .087 .101 .132 .166 .199 .265 .331
d1 max. .262 .312 .361 .437 .547 .656 .875 1.000
R.S. Torque (in-lb) 16.5 30.1 43.7 104 215 382 931 1722
Length Code Pkg.
1/8 0013 100              
3/16 0019 100              
1/4 0025 100 100 100          
5/16 0031 100              
3/8 0038 100 100 100 100 100 100    
1/2 0050 100 100 100 100 100 100    
5/8 0063 100 100 100 100 100 100 100  
3/4 0075 100 100 100 100 100 100 100  
7/8 0088       100   100 100  
1 0100 100 100 100 100 100 100 100 50
1-1/4 0125     100 100 100 100 100 50
1-1/2 0150   100 100 100 100 50 100 50
1-3/4 0175       100 100      
2 0200     100 100 100 50 50 50
2-1/2 0250       100 100     50
3 0300       100        
3-1/2 0350           50    

 

Diameter - UNF #10-321/4-285/16-243/8-24
Diameter Code 010 014 016 018
t min. .070 .087 .105 .122
s 1/8 5/32 3/16 7/32
.125 .156 .188 .219
k max. .101 .132 .166 .199
d1 max. .361 .437 .547 .656
R.S. Torque (in-lb) 43.7 104 215 382
Length Code Pkg.
1/4 0025 100      
3/8 0038 100      
1/2 0050 100 100    
5/8 0063 100 100    
3/4 0075 100 100 100 100
1 0100 100 100   100
1-1/2 0150 100      
Order Number -> 1/4 x 2 UNC = S350-014-0200 (Diameter Code x Length Code)(Fine Thread add -F)