Head Shoulder Screw
PDM
| Quantity: | |
|---|---|
Features of Shoulder Bolts
Shoulder Bolts Stainless Steel Title:
Custom shoulder bolt Steel & Aluminum& Stainless steel Hex Socket Shoulder Screw A2 A4 for Alignment
Knurled Head Shoulder Screws Specifications:
Shoulder screws are usually made of high-strength materials such as carbon steel or stainless steel, which have high precision and good corrosion resistance. Its design features include smooth shoulders and threaded parts, and the diameter and length of the shoulders can be customized according to application requirements.
Shoulder Screw: mostly designed with Allen or straight/cross countersunk heads, the head can sink into the surface of the connected part, suitable for situations that require precise positioning and low profile installation.
Shoulder Bolt: The head is mostly an outer hexagon or round head, protruding from the surface of the connected part, with stronger torque bearing capacity, suitable for heavy-duty fastening and frequent disassembly scenarios.
Core structure
Head: Common types include inner hexagon, outer hexagon, countersunk head, and round head.
Shoulder section: The core functional area of the product, with a diameter accuracy of up to h6~h9 levels, a smooth surface without threads, and is used for precise positioning, guidance, or as a rotating axis.
Threaded Section: Used for tightening with nuts or threaded holes, thread standards include metric (M series) and imperial (UNC/UNF), and thread length can be customized.
Materials: Stainless steel (304/316), carbon steel (1045/4140), alloy steel, aluminum alloy (6061-T6), etc
Surface treatment: Blackening, galvanizing, hot-dip galvanizing (rust prevention), passivation, polishing (to improve corrosion resistance), carburizing and quenching, hydrogenation (to improve hardness), anodizing (rust prevention+aesthetics), etc
| Dia. | D | A | H | D1 | P | E Max | T Min | J | |||
| Max | Min | Max | Min | Max | Min | ||||||
| 2.5 | 2.48 | 2.45 | 5 | 4.78 | 2.5 | 2.32 | M2 | 0.4 | 4 | / | / |
| 3 | 2.98 | 2.95 | 6 | 5.78 | 3 | 2.78 | M2.5 | 0.45 | 5 | / | / |
| 4 | 3.98 | 3.95 | 7 | 6.78 | 3.5 | 3.32 | M3 | 0.5 | 6 | 2.4 | 3 |
| 5 | 4.98 | 4.95 | 9 | 8.78 | 3.5 | 3.32 | M4 | 0.7 | 8 | 2.4 | 3 |
| 6 | 5.987 | 5.951 | 10 | 9.78 | 4.5 | 4.32 | M5 | 0.8 | 9.75 | 2.4 | 3 |
| 6.5 | 6.487 | 6.451 | 10 | 9.78 | 4.5 | 4.32 | M5 | 0.8 | 9.75 | 2.4 | 3 |
| 8 | 7.987 | 7.951 | 13 | 12.73 | 5.5 | 5.32 | M6 | 1.0 | 11.25 | 3.3 | 4 |
| 10 | 9.987 | 9.951 | 16 | 15.73 | 7 | 6.78 | M8 | 1.25 | 13.25 | 4.2 | 5 |
| 12 | 11.984 | 11.941 | 18 | 17.73 | 9 | 8.78 | M10 | 1.5 | 16.4 | 4.9 | 6 |
| 13 | 12.984 | 12.941 | 18 | 17.43 | 9 | 8.78 | M10 | 1.5 | 16.4 | 4.9 | 6 |
| 16 | 15.984 | 15.941 | 24 | 23.67 | 11 | 10.73 | M12 | 1.75 | 18.4 | 6.6 | 8 |
| 20 | 19.98 | 19.928 | 30 | 29.67 | 14 | 13.73 | M16 | 2.0 | 22.4 | 8.8 | 10 |
| 24 | 23.98 | 23.928 | 36 | 35.61 | 16 | 15.73 | M20 | 2.5 | 27.4 | 10 | 12 |
| 25 | 24.98 | 24.928 | 36 | 35.61 | 16 | 15.73 | M20 | 2.5 | 27.4 | 10 | 12 |
Application:
Fixtures and molds: As the positioning axis of the fixture and the guide column component of the mold, they ensure the repeated positioning accuracy of the fixture.
Automation equipment: used for the installation of components such as cylinders, rails, motors, etc., to achieve precise alignment and fastening of components.
Engineering machinery: The articulated parts of loaders and excavators that bear heavy loads and impact loads.
Medical devices: The internal component connections of high-precision diagnostic equipment require no gaps and high stability.
Aerospace: Lightweight aluminum alloy shoulder bolts are used for the installation of aircraft interiors and landing gear auxiliary components.
Core features and advantages of metric shoulder bolts
High precision positioning: The diameter tolerance of the shoulder section of the shaft is strictly controlled, which can achieve precise control of the coaxiality and parallelism of the connected parts, replacing the function of some positioning pins and simplifying the assembly structure.
Dual function integration: It has both positioning guidance and fastening connection functions, reducing the number of fasteners and positioning components and lowering assembly complexity.
High rigidity and stability: The clearance between the shoulder section and the connected part is extremely small, which can effectively disperse the load, avoid excessive shear force on the threaded section, and improve the overall rigidity of the connecting structure.
Easy for automated assembly: The smooth shoulder can guide screws/bolts to quickly insert, adapting to the tightening equipment of automated production lines and improving assembly efficiency.
Features of Shoulder Bolts
Shoulder Bolts Stainless Steel Title:
Custom shoulder bolt Steel & Aluminum& Stainless steel Hex Socket Shoulder Screw A2 A4 for Alignment
Knurled Head Shoulder Screws Specifications:
Shoulder screws are usually made of high-strength materials such as carbon steel or stainless steel, which have high precision and good corrosion resistance. Its design features include smooth shoulders and threaded parts, and the diameter and length of the shoulders can be customized according to application requirements.
Shoulder Screw: mostly designed with Allen or straight/cross countersunk heads, the head can sink into the surface of the connected part, suitable for situations that require precise positioning and low profile installation.
Shoulder Bolt: The head is mostly an outer hexagon or round head, protruding from the surface of the connected part, with stronger torque bearing capacity, suitable for heavy-duty fastening and frequent disassembly scenarios.
Core structure
Head: Common types include inner hexagon, outer hexagon, countersunk head, and round head.
Shoulder section: The core functional area of the product, with a diameter accuracy of up to h6~h9 levels, a smooth surface without threads, and is used for precise positioning, guidance, or as a rotating axis.
Threaded Section: Used for tightening with nuts or threaded holes, thread standards include metric (M series) and imperial (UNC/UNF), and thread length can be customized.
Materials: Stainless steel (304/316), carbon steel (1045/4140), alloy steel, aluminum alloy (6061-T6), etc
Surface treatment: Blackening, galvanizing, hot-dip galvanizing (rust prevention), passivation, polishing (to improve corrosion resistance), carburizing and quenching, hydrogenation (to improve hardness), anodizing (rust prevention+aesthetics), etc
| Dia. | D | A | H | D1 | P | E Max | T Min | J | |||
| Max | Min | Max | Min | Max | Min | ||||||
| 2.5 | 2.48 | 2.45 | 5 | 4.78 | 2.5 | 2.32 | M2 | 0.4 | 4 | / | / |
| 3 | 2.98 | 2.95 | 6 | 5.78 | 3 | 2.78 | M2.5 | 0.45 | 5 | / | / |
| 4 | 3.98 | 3.95 | 7 | 6.78 | 3.5 | 3.32 | M3 | 0.5 | 6 | 2.4 | 3 |
| 5 | 4.98 | 4.95 | 9 | 8.78 | 3.5 | 3.32 | M4 | 0.7 | 8 | 2.4 | 3 |
| 6 | 5.987 | 5.951 | 10 | 9.78 | 4.5 | 4.32 | M5 | 0.8 | 9.75 | 2.4 | 3 |
| 6.5 | 6.487 | 6.451 | 10 | 9.78 | 4.5 | 4.32 | M5 | 0.8 | 9.75 | 2.4 | 3 |
| 8 | 7.987 | 7.951 | 13 | 12.73 | 5.5 | 5.32 | M6 | 1.0 | 11.25 | 3.3 | 4 |
| 10 | 9.987 | 9.951 | 16 | 15.73 | 7 | 6.78 | M8 | 1.25 | 13.25 | 4.2 | 5 |
| 12 | 11.984 | 11.941 | 18 | 17.73 | 9 | 8.78 | M10 | 1.5 | 16.4 | 4.9 | 6 |
| 13 | 12.984 | 12.941 | 18 | 17.43 | 9 | 8.78 | M10 | 1.5 | 16.4 | 4.9 | 6 |
| 16 | 15.984 | 15.941 | 24 | 23.67 | 11 | 10.73 | M12 | 1.75 | 18.4 | 6.6 | 8 |
| 20 | 19.98 | 19.928 | 30 | 29.67 | 14 | 13.73 | M16 | 2.0 | 22.4 | 8.8 | 10 |
| 24 | 23.98 | 23.928 | 36 | 35.61 | 16 | 15.73 | M20 | 2.5 | 27.4 | 10 | 12 |
| 25 | 24.98 | 24.928 | 36 | 35.61 | 16 | 15.73 | M20 | 2.5 | 27.4 | 10 | 12 |
Application:
Fixtures and molds: As the positioning axis of the fixture and the guide column component of the mold, they ensure the repeated positioning accuracy of the fixture.
Automation equipment: used for the installation of components such as cylinders, rails, motors, etc., to achieve precise alignment and fastening of components.
Engineering machinery: The articulated parts of loaders and excavators that bear heavy loads and impact loads.
Medical devices: The internal component connections of high-precision diagnostic equipment require no gaps and high stability.
Aerospace: Lightweight aluminum alloy shoulder bolts are used for the installation of aircraft interiors and landing gear auxiliary components.
Core features and advantages of metric shoulder bolts
High precision positioning: The diameter tolerance of the shoulder section of the shaft is strictly controlled, which can achieve precise control of the coaxiality and parallelism of the connected parts, replacing the function of some positioning pins and simplifying the assembly structure.
Dual function integration: It has both positioning guidance and fastening connection functions, reducing the number of fasteners and positioning components and lowering assembly complexity.
High rigidity and stability: The clearance between the shoulder section and the connected part is extremely small, which can effectively disperse the load, avoid excessive shear force on the threaded section, and improve the overall rigidity of the connecting structure.
Easy for automated assembly: The smooth shoulder can guide screws/bolts to quickly insert, adapting to the tightening equipment of automated production lines and improving assembly efficiency.
