UNF
UNF
Tornillo cabeza plana avellanada con hexágono interior UNF
Normas ASME/ANSI 18.3 - ASTM F835 - Roscas 3A
Acero aleado de alta resistencia
| Ref: ? | ||||||
|---|---|---|---|---|---|---|
| Ejemplo: | Ref. = | H91NF | - | XX/XX | - | X XX/XX |
| ↑ | ↑ | |||||
| D | L | |||||
| 1/4 x 1"1/4 | ||||||
| Ref. = | H91NF | - | 1 - 4 - 1 | - | 1 - 4 | |
| D | #10 | 1/4" | 5/16" | 3/8" | 1/2" |
|---|---|---|---|---|---|
| D1 min. | 0.359 | 0.476 | 0.589 | 0.704 | 0.857 |
| D2 max. | 0.220 | 0.280 | 0.342 | 0.405 | 0.530 |
| K | 0.131 | 0.167 | 0.205 | 0.241 | 0.260 |
| S | 1/8 | 5/32 | 3/16 | 7/32 | 5/16 |
| Hilos/ | 32 | 28 | 24 | 24 | 20 |
| L1 | * | ||||
 |
8.5 | 15.8 | 27.7 | 45.2 | 135.6 |
| L |  3/8 |
3/8 |
1/2 |
5/8 |
 3/4 |
| 1/2 |
1/2 |
5/8 |
3/4 |
1" |
|
| 5/8 |
5/8 |
3/4 |
1" |
1/4 |
|
| 3/4 |
3/4 |
1" |
1" 1/4 |
1" 1/2 |
|
| 1" |
1" |
1" 1/4 |
1" 1/2 |
1" 3/4 |
|
| 1" 1/4 |
1" 1/4 |
2" |
|||
| 1" 1/2 |
1" 1/2 |
||||
| D | #10 | 1/4” | 5/16” | 3/8” | 1/2” | |
|---|---|---|---|---|---|---|
| L1= | 1” 1/2 | 7/8 | - | - | - | - |
Par de apriete recomendado
Dureza (?1/2) 39-43 HRC (>1/2) 38-42 HRC
Temperaturas de uso -29º a +204ºC
Alargamiento mínimo a la ruptura 8%
| Cantidad en caja | |
|---|---|
 x50 |
|
 x100 |
| Ref: ? | ||||||
|---|---|---|---|---|---|---|
| Ejemplo: | Ref. = | H91NF | - | XX/XX | - | X XX/XX |
| ↑ | ↑ | |||||
| D | L | |||||
| 1/4 x 1"1/4 | ||||||
| Ref. = | H91NF | - | 1 - 4 - 1 | - | 1 - 4 | |
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