Puller Bolts for Three-Plate Mold - Male Thread, Short Tip

These puller bolts are used in three-plate injection mold tooling to create a stable, repeatable connection between the moving and fixed sections during opening/closing cycles. A typical scenario is automotive connector and bracket molds, where frequent mold changes and high cycle counts demand consistent alignment; the short-tip male threaded form helps maintain clamp integrity while allowing straightforward set-up checks.

They also fit consumer electronics housing and snap-fit molds that rely on reliable puller retention for repeatable ejection timing. The male thread style supports secure fastening, which helps reduce micro-movement that can lead to wear on mating components.

For medical device housings and small precision parts, easy maintenance is critical; the bolted, disassemblable design streamlines inspection and replacement without disturbing overall three-plate geometry.

• Short-tip male threads are suited for secure retention in three-plate molds
• Supports efficient assembly/disassembly for maintenance cycles

The provided metadata does not specify a steel grade or heat-treatment state (e.g., pre-hardened, quenched & tempered, nitrided). As a result, hardness (HRC), wear-resistance, and toughness trade-offs cannot be stated from the supplied data.

In general mold-opening controller and stop/puller bolt components are manufactured from hardened tool steels or wear-resistant alloys to resist thread galling and maintain dimensional stability under repeated loading. When selecting an equivalent spec, prioritize adequate wear resistance for threaded engagement and toughness to avoid chipping during assembly/disassembly.

• Steel grade: Not provided in the current specifications
• Heat treatment: Not provided (confirm with product documentation)
• Hardness (HRC): Not provided—request CoC/heat chart if required

Selection is primarily based on the shaft diameter D and the installed length L. Choose D from the available range: 10, 13, 16, 20, or 25 mm to match the corresponding bolt hole/guide requirements in the three-plate mold frame.

Then set the length using L = 100 to 260 mm. Use L to ensure the threaded engagement provides sufficient clamping while avoiding bottoming or excessive protrusion that can interfere with mold opening paths.

• Match D to the drilled/tapped or clearance requirement for the three-plate bolt station
• Match L to the required reach through the moving section and interface hardware
• Consider fit: threaded engagement should be planned with appropriate clearance/tolerance to prevent binding during repeated cycles

The screw type is fixed to a male thread (male screw enhanced type or male screw type) per configuration—select the variant that matches your mating thread and desired assembly strength.