
Proveedores de Tornillos cabeza quadra - UNC UNF
Este producto está regulado por las siguientes normas:
Datos técnicos
Tornillos cabeza quadra - UNC UNF


Este producto está regulado por las siguientes normas:
Standard ASME B18.2.1 TABLE 1

Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.1 - Square Head Bolts Table 1 |
||||||||
Publication date: 2010 | ||||||||
d Thread size
|
UNC (nr of threads x inch) | UNF (nr of threads x inch) |
H basic
|
E min |
b (l< 6')
|
b (l> 6')
|
F basic
|
G basic |
1/4
|
20 | 28 | 11/64 | 0.237 | 0.75 | 1 | 3/8 | 0.498 |
5/16
|
18 | 24 | 13/64 | 0.298 | 0.875 | 1.125 | 1/2 | 0.665 |
3/8
|
16 | 24 | 1/4 | 0.360 | 1 | 1.25 | 9/16 | 0.747 |
7/16
|
14 | 20 | 18/64 | 0.421 | 1.125 | 1.375 | 5/8 | 0.828 |
1/2
|
13 | 20 | 21/64 | 0.482 | 1.25 | 1.5 | 3/4 | 0.995 |
5/8
|
11 | 18 | 27/64 | 0.605 | 1.5 | 1.75 | 15/16 | 1.244 |
3/4
|
10 | 16 | 1/2 | 0.729 | 1.75 | 2 | 1 1/8 | 1.494 |
7/8
|
9 | 14 | 19/32 | 0.852 | 2 | 2.25 | 1 5/16 | 1.742 |
1
|
8 | 12 | 21/32 | 0.976 | 2.25 | 2.5 | 1 1/2 | 1.991 |
1 1/8 | 7 | 12 | 3/4 | 1.098 | 2.25 | 2.75 | 1 11/16 | 2.239 |
1 1/4 | 7 | 12 | 27/32 | 1.223 | 2.75 | 3 | 1 7/8 | 2.489 |
1 3/8 | 6 | 12 | 29/32 | 1.345 | 3 | 3.25 | 2 1/16 | 2.738 |
1 1/2 | 6 | 12 | 1 | 1.470 | 3.25 | 3.5 | 2 1/4 | 2.986 |
![]() |
|||||||||
Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.1 - Askew Head Bolts Table 6 |
|||||||||
Publication date: 2010 | |||||||||
d Thread size
|
UNC (nr of threads x inch) |
UNF (nr of threads x inch) |
H1 min | H ref | E min |
LT (l< 6')
|
LT (l> 6')
|
G min
|
F basic
|
3/8
|
16 | 24 | 0.277 | 0.25 | 0.36 |
1
|
1.25
|
0.747 | 0.563 |
1/2
|
13 | 20 | 0.371 | 0.328 | 0.482 |
1.25
|
1.5
|
0.995 | 0.75 |
5/8
|
11 | 18 | 0.480 | 0.422 | 0.605 |
1.5
|
1.75
|
1.244 | 0.938 |
3/4
|
10 | 16 | 0.574 | 0.5 | 0.729 |
1.75
|
2
|
1.494 | 1.125 |
7/8
|
9 | 14 | 0.683 | 0.594 | 0.852 |
2
|
2.25
|
1.742 | 1.313 |
1
|
8 | 12 | 0.761 | 0.656 | 0.976 |
2.25
|
2.5
|
1.991 | 1.5 |
Standard ASME B18.2.1 TABLE 4
Tornillos de cabeza torcida

Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.1 - Askew Head Bolts Table 6 |
|||||||||
Publication date: 2010 | |||||||||
d Thread size
|
UNC (nr of threads x inch) |
UNF (nr of threads x inch) |
H1 min | H ref | E min |
LT (l< 6')
|
LT (l> 6')
|
G min
|
F basic
|
3/8
|
16 | 24 | 0.277 | 0.25 | 0.36 |
1
|
1.25
|
0.747 | 0.563 |
1/2
|
13 | 20 | 0.371 | 0.328 | 0.482 |
1.25
|
1.5
|
0.995 | 0.75 |
5/8
|
11 | 18 | 0.480 | 0.422 | 0.605 |
1.5
|
1.75
|
1.244 | 0.938 |
3/4
|
10 | 16 | 0.574 | 0.5 | 0.729 |
1.75
|
2
|
1.494 | 1.125 |
7/8
|
9 | 14 | 0.683 | 0.594 | 0.852 |
2
|
2.25
|
1.742 | 1.313 |
1
|
8 | 12 | 0.761 | 0.656 | 0.976 |
2.25
|
2.5
|
1.991 | 1.5 |
Detalles
Tornillos cabeza quadra - UNC UNF


Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.1 - Square Head Bolts Table 1 |
||||||||
Publication date: 2010 | ||||||||
d Thread size
|
UNC (nr of threads x inch) | UNF (nr of threads x inch) |
H basic
|
E min |
b (l< 6')
|
b (l> 6')
|
F basic
|
G basic |
1/4
|
20 | 28 | 11/64 | 0.237 | 0.75 | 1 | 3/8 | 0.498 |
5/16
|
18 | 24 | 13/64 | 0.298 | 0.875 | 1.125 | 1/2 | 0.665 |
3/8
|
16 | 24 | 1/4 | 0.360 | 1 | 1.25 | 9/16 | 0.747 |
7/16
|
14 | 20 | 18/64 | 0.421 | 1.125 | 1.375 | 5/8 | 0.828 |
1/2
|
13 | 20 | 21/64 | 0.482 | 1.25 | 1.5 | 3/4 | 0.995 |
5/8
|
11 | 18 | 27/64 | 0.605 | 1.5 | 1.75 | 15/16 | 1.244 |
3/4
|
10 | 16 | 1/2 | 0.729 | 1.75 | 2 | 1 1/8 | 1.494 |
7/8
|
9 | 14 | 19/32 | 0.852 | 2 | 2.25 | 1 5/16 | 1.742 |
1
|
8 | 12 | 21/32 | 0.976 | 2.25 | 2.5 | 1 1/2 | 1.991 |
1 1/8 | 7 | 12 | 3/4 | 1.098 | 2.25 | 2.75 | 1 11/16 | 2.239 |
1 1/4 | 7 | 12 | 27/32 | 1.223 | 2.75 | 3 | 1 7/8 | 2.489 |
1 3/8 | 6 | 12 | 29/32 | 1.345 | 3 | 3.25 | 2 1/16 | 2.738 |
1 1/2 | 6 | 12 | 1 | 1.470 | 3.25 | 3.5 | 2 1/4 | 2.986 |
![]() |
|||||||||
Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.1 - Askew Head Bolts Table 6 |
|||||||||
Publication date: 2010 | |||||||||
d Thread size
|
UNC (nr of threads x inch) |
UNF (nr of threads x inch) |
H1 min | H ref | E min |
LT (l< 6')
|
LT (l> 6')
|
G min
|
F basic
|
3/8
|
16 | 24 | 0.277 | 0.25 | 0.36 |
1
|
1.25
|
0.747 | 0.563 |
1/2
|
13 | 20 | 0.371 | 0.328 | 0.482 |
1.25
|
1.5
|
0.995 | 0.75 |
5/8
|
11 | 18 | 0.480 | 0.422 | 0.605 |
1.5
|
1.75
|
1.244 | 0.938 |
3/4
|
10 | 16 | 0.574 | 0.5 | 0.729 |
1.75
|
2
|
1.494 | 1.125 |
7/8
|
9 | 14 | 0.683 | 0.594 | 0.852 |
2
|
2.25
|
1.742 | 1.313 |
1
|
8 | 12 | 0.761 | 0.656 | 0.976 |
2.25
|
2.5
|
1.991 | 1.5 |
Lista completa de proveedores de Tornillos cabeza quadra - UNC UNF

Founded in 1969, Buora D.P.U. is a distributor certified following ISO 9001.
The company offers the complete range of high strength fasteners, ready on stock, both coarse and fine pitches with metric and inch threads.
Distributor of prestigious brands such as UNBRAKO and NORD-LOCK, for Buora D.P.U. the service always comes first, therefore there is not minimum quantity required.
Distributor of inch sized fasteners, oil and gas fasteners and turned special screws
We offer logistics and inventory management and integrated supply chain management services covering a wide market of OEM fasteners (KanBan), MRO and Personal Protective Equipment (Vending Machine).
Manufacturer of special cold and hot forged nuts and bolts: Metric, UNF, UNC, BSF & BSW (Whitworth) threadforms
Â