UNF
UNF
Socket button head cap screws
Standards ASME/ANSI 18.3 - ASTM F835- Thread fit 3A
Heat treated alloy steel
| Ref: ? | ||||||
|---|---|---|---|---|---|---|
| Example: | Ref. = | H80NF | - | XX/XX | - | X XX/XX |
| ↑ | ↑ | |||||
| D | L | |||||
| 3/8 x 3/4 | ||||||
| Ref. = | H80NF | - | 3 - 8 | - | 3 - 4 | |
| D | #10 | 1/4” | 5/16” | 3/8” | D |
|---|---|---|---|---|---|
| D1 (max.) | 0.361 | 0.437 | 0.547 | 0.656 | D1 (max.) |
| D2 (max.) | 0.220 | 0.290 | 0.352 | 0.415 | D2 (max.) |
| K (max.) | 0.101 | 0.132 | 0.166 | 0.199 | K (max.) |
| R | 0.220 | 0.254 | 0.314 | 0.373 | R |
| S | 1/8 | 5/32 | 3/16 | 7/32 | S |
| Hilos/ “ | 32 | 28 | 24 | 24 | Hilos/ “ |
 |
7.3 | 14.1 | 22.6 | 40.7 | |
| L |  1/4 |
 1/4 |
3/8 |
 1/2 |
L |
| 5/16 |
3/8 |
1/2 |
3/4 |
||
| 3/8 |
1/2 |
5/8 |
1” |
||
| 1/2 |
5/8 |
3/4 |
|||
| 5/8 |
3/4 |
1” |
|||
| 3/4 |
1” |
||||
| 7/8 |
|||||
| 1” |
Recommended tightening torque
Hardness 37 HRC min.
Working temperatures -29º a +204ºC
Minimum elongation at fracture 8%
| Box qty. | |
|---|---|
 x25 |
|
 x50 |
|
 x100 |
| Ref: ? | ||||||
|---|---|---|---|---|---|---|
| Example: | Ref. = | H80NF | - | XX/XX | - | X XX/XX |
| ↑ | ↑ | |||||
| D | L | |||||
| 3/8 x 3/4 | ||||||
| Ref. = | H80NF | - | 3 - 8 | - | 3 - 4 | |
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