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- Introduction
-
Product
- Hexagon socket head cap screws
- Hexagon socket thin head cap screws
- Hexagon head socket with captive washer
- Hexagon Socket flat head cap screws
- Hexagon Socket button head screws
- Hexagon socket set screws
- Hexagon socket pipe plugs
- Hexagon head bolts
- Hexagon flange bolts
- Round head square neck bolts
- A193 STUD BOLT(B7, B8, B8M)
- A194 2H, H.V NUT
- A307A HEX BOLT
- Heavy hex screw
- Socket button head cap screws(COVER. BCW)
- High-strength hex socket wrench bolt
- Inquiry
- Cooperation
- Contact Us
- Introduction
-
Product
- Hexagon socket head cap screws
- Hexagon socket thin head cap screws
- Hexagon head socket with captive washer
- Hexagon Socket flat head cap screws
- Hexagon Socket button head screws
- Hexagon socket set screws
- Hexagon socket pipe plugs
- Hexagon head bolts
- Hexagon flange bolts
- Round head square neck bolts
- A193 STUD BOLT(B7, B8, B8M)
- A194 2H, H.V NUT
- A307A HEX BOLT
- Heavy hex screw
- Socket button head cap screws(COVER. BCW)
- High-strength hex socket wrench bolt
- Inquiry
- Cooperation
- Contact Us
Hexagon socket set screws
Product specifications
* Please scroll horizontally to view.
| Strength | 45H | Stainless steel |
|---|---|---|
| Material | SCM435 | STS304 |
| Hardness(HRC) | 45~53 | - |
| Remarks | Black oxide | Washing |
StandardDIN 916
* Please scroll horizontally to view.
* Please scroll horizontally to view.
| the title of a screw(d) | the pitch of a screw(P) | dv | df | e | s | t | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Max | Min | about | Min | Title | Min | Max | Min | |||
| 1 | 2 | |||||||||
| M3 | 0.5 | 1.4 | 1.15 | the approximate diameter of a male screw | 1.73 | 1.5 | 1.52 | 1.545 | 1.2 | 2 |
| M4 | 0.7 | 2 | 1.75 | 2.30 | 2 | 2.02 | 2.045 | 1.5 | 2.5 | |
| M5 | 0.8 | 2.5 | 2.25 | 2.87 | 2.5 | 2.52 | 2.58 | 2 | 3 | |
| M6 | 1 | 3 | 2.75 | 3.44 | 3 | 3.02 | 3.08 | 2 | 3.5 | |
| M8 | 1.25 | 5 | 4.7 | 4.58 | 4 | 4.02 | 4.095 | 3 | 5 | |
| M10 | 1.5 | 6 | 5.7 | 5.72 | 5 | 5.02 | 5.095 | 4 | 6 | |
| M12 | 1.75 | 8 | 7.64 | 6.86 | 6 | 6.02 | 6.095 | 4.8 | 8 | |
| M14 | 2 | 9 | 8.64 | 6.86 | 6 | 6.02 | 6.095 | 5.6 | 9 | |
| M16 | 2 | 10 | 9.64 | 9.15 | 8 | 8.025 | 8.115 | 6.4 | 10 | |
| M18 | 2.5 | 12 | 11.57 | 11.43 | 8 | 8.025 | 8.115 | 7.2 | 11 | |
| M20 | 2.5 | 14 | 13.57 | 11.43 | 10 | 10.025 | 10.115 | 8 | 12 | |
| M22 | 2.5 | 16 | 15.57 | 13.72 | 10 | 10.025 | 10.115 | 9 | 13.5 | |
| M24 | 3 | 16 | 15.57 | 13.72 | 12 | 12.032 | 12.142 | 10 | 15 | |
Mechanical properties of a set screw (also known as a headless screw) with an Allen wrench drive KS B 0240
Table 1 - Display of Strength Classification Related to Vickers Hardness Test
* Please scroll horizontally to view.
| Strength | 14H | 22H | 33H | 45H |
|---|---|---|---|---|
| Vickers Scale HVmin | 140 | 220 | 330 | 450 |
* Please scroll horizontally to view.
| Mechanical property | Strength classification | |||||
|---|---|---|---|---|---|---|
| 14H | 22H | 33H | 45H | |||
| Vickers Scale HV10 | Min | 140 | 220 | 330 | 450 | |
| Max | 290 | 300 | 440 | 560 | ||
| Brinell hardness HB, F=30D² | Min | 133 | 209 | 314 | 428 | |
| Max | 276 | 285 | 418 | 532 | ||
| Rockwell scale | HRB | Min | 75 | 95 | - | - |
| Max | 105 | - | - | - | ||
| HRC | Min | - | - | 33 | 45 | |
| Max | - | 30 | 44 | 53 | ||
| Minimum height of non-carburized screws, E | Min | - | ½H₁ | ⅔H₁ | ¾H₁ | |
| Maximum height of completely decarburized area, G mm | Max | - | 0.015 | 0.015 | Decarburization not allowed | |
| Surface hardness HV 0.3 | Max | - | 320 | 450 | 580 | |
· 14H, 22H and 33H are not for hex socket screws.
· For strength class 22H, it is necessary to test the minimum value of HRB and the maximum value of HRC at the Rockwell hardness test.
· Complete decarburization is not allowed in the case of strength class 45H.
