Positioning Pin DIN6325 Hardened Ground Dowel Pin – Qimao

Product Introduction:

Qimao Metal Manufacturer Positioning Pin DIN6325 Hardened Ground Dowel Pin – Qimao, interchangeable with ISO 8734 equivalents. The body is centerless ground to an m6 diameter tolerance, which pairs with an H7 reamed hole for a transition fit. One end is chamfered roughly 15 degrees to guide insertion without galling the bore. The opposite end carries a slight radiused crown so the pin can be driven flush without mushrooming the head. Material is typically 100Cr6 bearing steel or equivalent alloy, through-hardened and tempered to HRC 58-62. The ground surface finish sits in the Ra 0.4-0.8 range. That is the practical stuff that matters when you are pressing pins into a die shoe and need them to stay put.

Product Specification:

Product Name:	Item No.:	Material:	Measurement(mm):			Surface Finish:	Weight(g):
			L:	D：	Chamfer:
Positioning Pin DIN6325 Hardened Ground Dowel Pin – Qimao	QM3023	Steel	25	2.5	c0.25	Polish	2.35

Product Details:

The Positioning Pin DIN6325 Hardened Ground Dowel Pin – Qimao available in a broad range of standard metric sizes: diameters from 1mm up to 20mm, lengths from 4mm to 100mm depending on diameter. Common stock sizes include 3×10, 4×12, 5×16, 6×20, 8×24, 10×30. Diameter tolerance is m6 as standard. Hardness holds to HRC 58-62 through the section. Surface finish is ground, no plating as standard. Black oxide finish available for shop-floor corrosion resistance. Each batch is checked for straightness and diameter consistency. Custom diameters, lengths, and tolerances can be produced to drawing. If you need the pin to match a specific bore size or length, send the print.

Core Feature:

• Positioning Pin DIN6325 Hardened Ground Dowel Pin – Qimao , match DIN 6325 compliant, interchangeable with ISO 8734 and equivalent national standards

• Hardened to HRC 58-62 for wear resistance under shear and side loads

• Ground to m6 tolerance, pairs with H7 reamed holes for transition fit

• Chamfered lead-in end reduces risk of galling during installation

• Radiused crown end prevents mushrooming when driven flush

• Centerless ground for straightness and consistent diameter along the length

• Metric range: 1mm to 20mm diameter, lengths to 100mm

• Custom sizes available to drawing or sample

Wide Usage:

1-Die construction: used for aligning die holder, punch plate, and stripper plates to ensure where repeatable registration precision.

2-Mold frame and injection mould: for locating cavity inserts and core pins, to maintain the stablility shut-height consistency

3-Fixtures and jigs: positioning workpieces or fixture plates on machine tables before clamping

4-Machine tooling: serving as pivot pins, stops, or shear elements in mechanical linkages

5-Laminated stacks: holding stacked plates in alignment during drilling or machining operations

6-Tool room work: general doweling where a hardened, ground pin is specified over a soft pin

Factory Advantage:

Qimao has over 16years experience of this product Positioning Pin DIN6325 Hardened Ground Dowel Pin – Qimao, and  runs the full process in-house: material selection, heat treatment, centerless grinding, and dimensional inspection. That matters because a dowel pin that is straight but not hardened will deform under load, and one that is hard but not ground will not seat properly in a reamed hole. We control both. Standard stock covers the common DIN 6325 sizes. For volume orders, we provide dimensional inspection reports and hardness verification. If you have a print with tighter tolerances or a non-standard length, we can quote it. We have been making these pins for tool rooms and die shops long enough to know what fails in the field and what does not.