M2 Steel Precision Gas Release One-Step Core Pins - Flat Sides SVC

One-step gas release core pins are used inside injection molds to vent trapped air or volatiles, supporting stable fill and reducing burn marks. This variant’s extended flat-sided SVC feature improves anti-rotation behavior, helping maintain core-to-cavity alignment through repeated thermal cycles and ejection.

• In automotive connector and sensor housing molds, the precise shaft diameter range (0.8–10 mm) and controlled L tolerance (+0.01/0, 0/−0.1) support consistent positioning of the gas-release section for reliable exhaust.
• For electronics and small enclosure components, the selectable tip and step geometries (first step shape 1A–1D; tip shape options including B/C/G/R/T) allow tuning of venting performance without compromising alignment.
• In medical device housings where dimensional stability and repeatability matter, the hardened, wear-resistant steel options and anti-rotation flat design help keep vent paths repeatable across long production runs.

The combination of gas-release geometry and the SVC flat sides makes it particularly suited where both venting efficiency and stable core alignment are required.

These precision core pins are offered in SKH51 or SKD61 steel, both selected for dimensional stability and wear resistance in molding environments. SKH51 (a high-speed steel family; commonly treated similarly to AISI M2) is typically chosen where edge retention and abrasion resistance are important, with a trade-off toward lower toughness compared to some hot-work steels.

SKD61 (commonly treated similarly to H13) is a hot-work tool steel widely used for cores and inserts requiring balanced toughness and thermal fatigue performance. Compared with SKH51-type high-speed behavior, SKD61 is often preferred when repeated heating/cooling cycles and impact resistance matter more than maximum wear.

• Heat treatment state: these pins are specified as hardened for wear resistance in service (exact cycle/hardness not provided in the input data).
• Hardness & trade-offs: hardened SKH51 generally supports high wear resistance; hardened SKD61 supports a more favorable toughness/thermal-fatigue balance.
• Manufacturing: produced as precision ground/finished core pins with controlled step and tip features to maintain gas release performance and fit stability.

Select dimensions by matching the gas-release location and anti-rotation features to your core or bushing arrangement. Start with the D/P (shaft diameter) = 0.8–10 mm to ensure the pin’s body fits the corresponding guide bore. Then confirm Nominal diameter (No.) = 1–13 mm and the step geometry needed for engagement and support.

• Length control (L): choose L = 6.5–100 mm (or up to 6.5–120 mm depending on the configuration). Use the provided L dimension tolerance of +0.01/0 or 0/−0.1 when defining the mating cavity or stop location.
• Gas release features: size the gas-release section using N (0.3–10 or 0.5–15 mm options) and the corresponding PC (0.72–9.92 mm). If your design requires the relationship PC = P, apply the rule PCX from the specification.
• Anti-rotation: verify the SVC extended flat reaches the bottom as specified; this affects how the pin seats against the flat feature in the die.

For best assembly alignment, keep your core housing/insert bores compatible with the shaft diameter and your stop geometry compatible with the specified L tolerance.