ASME B18.3 Half Dog Point Socket Set Screws
ASME B18.3 half dog point spline socket set screws feature a short cylindrical tip and a spline socket drive. The reduced-length dog point is designed to engage with a matching hole or recess in a mating component, helping maintain alignment and resist rotational movement between assembled parts. This configuration is suitable for applications where components need to be located in a defined position without using a full-length dog point.
These set screws are used in mechanical assemblies, positioning fixtures, and shaft-mounted components that require controlled engagement with a mating feature. We supply half dog point spline socket set screws in different sizes, lengths, materials, and surface finishes to meet specific application requirements, supported by cold heading, thread rolling, and dimensional inspection processes.
Specification:
| Item | Specification |
|---|---|
| Standard | ASME B18.3 |
| Product Type | Half Dog Point Spline Socket Set Screws |
| Drive Type | Hex Socket |
| Point Tppe | Half Dog Point |
| Thread Standard | ASME B1.1 Unified Inch Screw Threads |
| Thread | UNC,UNF |
| Thread Tolerance | 2A |
| Size Range | #0-2" |
| Surface Treatment | Black Oxidation,Zinc Plated,Bright Finish,Passivation |
| Material | Carbon Steel,Alloy Steel, Stainless Steel |
| Mechanical Property(Steel) | ASTM F912 |
| Mechanical Property(Stainless Steel) | ASTM F880 |
- RELATED SCREWS:
- SET SCREWS
- ASME B18.3 Flat Point Set Screws
- ASME B18.3 Oval Point Socket Set Screws
- ASME B18.3 Cup Point Socket Set Screw
- ASME B18.3 Cone Point Set Socket Screws
- ASME B18.3 Half Dog Point Spline Socket Set Screws
- DIN913 Flat Point Set Screws
- DIN914 Cone Point Set Screws
- DIN915 Dog Point Set Screws
- DIN916 Cup point Socket Set Screws
Mechanical Property:
ASTM F912 — Alloy Steel Half Dog Point Spline Socket Set Screws
The projecting half dog point is designed to engage with a locating hole or recess, helping maintain the position of assembled components. For alloy steel versions, ASTM F912 specifies a hardness range of 45–53 HRC, along with requirements for torque performance, torsional strength, and other mechanical properties. These requirements are particularly relevant when the set screw must withstand tightening forces while securing components in position.
ASTM F880 — Stainless Steel Half Dog Point Spline Socket Set Screws
For assemblies exposed to moisture or corrosive conditions, stainless steel half dog point set screws offer an alternative where corrosion resistance is also required. ASTM F880 covers austenitic stainless steel socket set screws. The specification includes requirements for material composition, torque performance, Vickers hardness, and corrosion resistance.