Hardware Products

Hardware products cover a wide range of categories including furniture hardware, construction hardware, mechanical parts, daily-use hardware, and tool parts. Punching processes for these products often face challenges such as high material strength (e.g., stainless steel, carbon steel), diverse hole shapes, and strict fit requirements with springs or screws. Based on years of experience in punching die manufacturing, ZHONGWANGDA (DONGGUAN) PRECISION MOLD CO., LTD. provides hardware product manufacturers with spring holes, screw spring holes, copper-head-free spring holes, steel holes, side scrap clearance holes, hexagonal side scrap clearance holes, bottom scrap clearance holes, bottom half-blanking holes, and various non-standard punching dies. For example, in hinges or butt hinges, the spring hole must have a smooth wall and a diameter that matches the spring's outer diameter to avoid spring sticking or misalignment. In quick-release devices or adjustable feet, the screw spring hole needs to accommodate both a screw and a spring; the company can complete this composite structure in a single punching operation. For scenarios requiring automatic scrap ejection in progressive dies, bottom scrap clearance or side scrap clearance hole structures can be designed to reduce manual cleaning. In addition, ZHONG WANG DA supports custom non-standard special-shaped holes (oblong, oval, square, D-shaped, etc.) to meet the diverse design requirements of hardware products, helping customers reduce outsourcing lead times and die costs.

The punching products of ZHONG WANG DA can be applied in the hardware products industry in the following scenarios:

• Spring holes, copper-head-free spring holes: Cylindrical holes for installing springs in products such as hinges, butt hinges, locks, and shrapnel, ensuring the spring does not deviate or get stuck.

• Screw spring holes: Suitable for combined hole structures that need to accommodate both a screw and a spring, commonly found in adjustable feet, quick-release devices, etc.

• Steel holes: Used for processing standard round holes or positioning holes on brackets, hanging plates, and connectors made of materials such as stainless steel, carbon steel, and galvanized sheet.

• Bottom scrap clearance holes, bottom half-blanking holes: Suitable for blanking holes or half-punched structures in thick-plate stamping, facilitating subsequent tapping or bending.

• Side scrap clearance holes, hexagonal side scrap clearance holes: Used for side punching and automatic scrap ejection on special-shaped hardware parts in progressive dies, improving automation.

• Non-standard punching: Customizable for oval, square, oblong, special-shaped holes, and multi-hole combination dies based on customer-supplied drawings or samples.