Specialty Metal Machine Screw Nuts

United Titanium manufactures and inventories machine screw nuts from #0 to #10 diameter. We also have metric machine screw nuts available upon request. These machine screw nuts are manufactured to the most recent ASME B18.6.3, IFI, or customer stated standards. Our inventory is home to thousands of these machine nuts in any of our various materials and sizes.

Machine Screw Nuts Specifications

  • STANDARD (ASME/ANSI)
  • METRIC (IFI)

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Dimensions

 

  F G H
NOMINAL SIZE WIDTH ACROSS FLATS WIDTH ACROSS
CORNERS
THICKNESS
BASIC MAX MIN MAX MIN MAX MIN
No. 0 5/32 0.156 0.150 0.180 0.171 0.050 0.043
1 5/32 0.156 0.150 0.180 0.171 0.050 0.043
2 3/16 0.188 0.180 0.217 0.205 0.066 0.057
3 3/16 0.188 0.180 0.217 0.205 0.066 0.057
4 1/4 0.250 0.241 0.289 0.275 0.098 0.087
5 5/16 0.312 0.302 0.361 0.344 0.114 0.102
6 5/16 0.312 0.302 0.361 0.344 0.114 0.102

8

11/32 .344 0.332 0.397 0.378 0.130 0.117
10 3/8 .375 0.362 0.433 0.413 0.130 0.117
12 7/16 .438 0.423 0.505 0.482 0.161 0.148
1/4 7/16 .438 0.423 0.505 0.482 0.193 0.178
5/16 9/16 .562 0.545 0.650 0.621 0.225 0.208
3/8 5/8 .625 0.607 0.722 0.692 0.257 0.239

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