Specialty Metal Flat Socket Cap Screws

United Titanium manufactures and inventories flat socket cap screws from #0 to 1-1/2” diameter. We also offer metric flat socket cap screws upon request. These flat socket cap screws are manufactured to the most recent ASME B18.3, IFI, or Customer stated standards with either full or partial threaded options.  Our inventory is home to thousands of these flat socket cap screws in any of our various materials and sizes.

Flat Head Cap Screws Specifications

  • ASTM F468, if requested
  • MIL-DTL-1222, if requested
  • MIL-S-1222, if requested
  • STANDARD (ASME/ANSI)
  • METRIC (IFI)

Dimensions

 

  D A J
NOMINAL SIZE BODY DIAMETER HEAD DIAMETER HEXAGON SOCKET SIZE
MAX MIN THEORETICAL SHARP MAX NOM
0 0.0600 0.0568 0.1380 0.035
1 0.0730 0.0695 0.1680 0.050
2 0.0860 0.0822 0.1970 0.050
3 0.0990 0.0949 0.2260   1/16
4 0.1120 0.1075 0.2550 1/16
5 0.1250 0.1202 0.2810 5/64
6 0.1380 0.1329 0.3070 5/64
8 0.1640 0.1585 0.3590 3/32
10 0.1900 0.1840 0.4110 1/8
1/4 0.2500 0.2435 0.5310 5/32
5/16 0.3125 0.3053 0.6560 3/16
3/8 0.3750 0.3678 0.7810 7/32
7/16 0.4375 0.4294 0.8440 1/4
1/2 0.5000 0.4919 0.9380 5/16
5/8 0.6250 0.6163 1.1880 3/8
3/4 0.7500 0.7406 1.4380 1/2
7/8 0.8750 0.8647 1.6880 9/16
1 1.0000 0.9886 1.9380 5/8
1 1/8 1.1250 1.1086 2.1880 3/4
1 1/4 1.2500 1.2336 2.4380 7/8
1 3/8 1.3750 1.3568 2.6880 7/8
1 1/2 1.5000 1.4818 2.9380 1

Unless otherwise specified, all dimensions per ASME B18.3 except thead length and class. Unless specified on a purchase order or a drawing, United Titanium may choose to manufacture threads as class 2A or 3A and may choose to fully thread the shank.

Materials

TITANIUM ZIRCONIUM ALLOY TANTALUM
CP-TI (GR. 2) 702 600 UT35N  
6AL-4V (GR. 5) 705 625 556  
TI-PD (GR. 7)   825 718  
TI CODE 12 (GR. 12)   C276 AL6XN  
6AL-4V ELI (GR. 23)   C22 2205  
    B2 686  
    B3 255  

Specifications