Specifications
|
Parameter |
Specification |
|---|---|
|
Pin Type |
Parallel Dowel Pin with Internal Thread |
|
Nominal Diameter (d1) |
6, 8, 10, 12, 16, 20, 25, 30, 40, 50 mm |
|
Diameter Tolerance |
m6 |
|
Internal Thread (d2) |
M4, M5, M6, M6, M8, M10, M16, M20, M20, M24 |
|
Thread Pitch (P) |
0.7, 0.8, 1.0, 1.0, 1.25, 1.5, 2.0, 2.5, 2.5, 3.0 mm |
|
Thread Tolerance |
6H |
|
Material |
Hardened Steel / Martensitic Stainless Steel |
|
Steel Hardness |
550–650 HV30 |
|
Martensitic Stainless Steel Hardness |
460–560 HV30 |
|
Pin Types |
Type A: Through-Hardened; Type B: Case-Hardened |
|
Surface Finish |
Natural Finish with Rust-Preventive Oil; Other Finishes by Agreement |
|
Surface Roughness |
Ra ≤ 0.8 μm |
|
Length Tolerance |
±0.5 mm for 10 < L ≤ 50 mm; ±0.75 mm for 50 < L ≤ 100 mm |
Key Advantages of ISO 8735 Dowel Pins
- Precise Positioning and Alignment
The cylindrical body and specified diameter tolerance support accurate positioning between mating components. Dowel Pins help maintain alignment in mechanical assemblies where repeatable location is required.
- Internal Thread for Easy Removal
The internal thread provides an engagement point for an extraction bolt or suitable removal tool. This design simplifies pin removal during maintenance, component replacement, or assembly adjustment.
- Hardened Material Options
Available material options include hardened steel and martensitic stainless steel, subject to the selected specification. The corresponding hardness requirements help match the pin to the mechanical demands and operating environment.
Dimensional Accuracy & Tolerance Control
- Diameter Tolerance for Precise Location
The nominal pin diameter and specified tolerance determine the fit between the pin and the prepared hole. ISO 8735 dimensional requirements help engineers select suitable pins for positioning and alignment in mechanical assemblies.
- Length and Thread Dimensions
Pin length, internal thread size, and thread depth must match the assembly design and available installation space. Confirming these dimensions helps maintain sufficient engagement while allowing access for extraction tools.
- Surface Finish and Cylindrical Accuracy
The cylindrical surface condition affects contact with the mating hole and the consistency of the installed fit. Dimensional inspection and surface-finish verification should follow the applicable standard and the agreed technical specifications.
Customization Options for ISO 8735 Dowel Pins
Diameter and Length Specifications
Select pin diameters and lengths according to the mating-hole dimensions, required engagement depth, and available installation space. Dimensional requirements can be confirmed against the applicable ISO 8735 specifications.
Internal Thread Configuration
Internal thread size and depth can be specified according to the selected pin diameter and assembly requirements. Confirm thread compatibility with the extraction bolt or removal tool before production.
Material and Hardness Selection
Hardened steel and martensitic stainless steel options can be evaluated based on load conditions, wear requirements, and corrosion exposure. Material and hardness specifications should be confirmed before order placement.
Surface Finish and Packaging
Surface finish and rust-preventive treatment can be discussed according to storage, transportation, and assembly requirements. Packaging and labeling can also be coordinated to support batch identification and incoming inspection.
FAQ
What is the difference between ISO 8735 and ISO 8734 Dowel Pins?
ISO 8735 specifies dowel pins with an internal thread, while ISO 8734 covers solid cylindrical dowel pins without this extraction feature. The appropriate standard depends on the assembly design and disassembly requirements.
What should buyers check when ordering ISO 8735 Dowel Pins in bulk?
Buyers should confirm the applicable standard edition, dimensional specifications, material grade, hardness requirements, inspection criteria, and packaging details. A controlled drawing or approved sample can help align production and incoming inspection requirements.
Can Dowel Pins be used in automated assembly lines?
Yes, they can be incorporated into automated assembly processes when pin dimensions, hole tolerances, feeding methods, and insertion equipment are compatible. Trial assembly can help verify installation consistency before full-scale production.
How can buyers verify a batch of Dowel Pins before acceptance?
A receiving inspection can check dimensional conformity, thread condition, surface defects, material documentation, and hardness results where specified. Inspection methods and acceptance limits should be agreed upon before the order is placed.
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