描述
| Material | 40Cr (Equiv. AISI 4140 / JIS SCM440) |
| Overall Dimension | SW12㎜*23.5㎜ |
| Primary Dimensions (Across Flats) | SW=12(+0.1/-0.18)㎜ |
Hexagon bleed screw for diesel engines. Hexagon and full dimensions formed by one‑step cold heading.
Boasting 30+ years of mold development and 1,000+ precision molds, we offer one-stop customization with free design and sampling for non-standard components.
Equipped with 23 advanced cold heading machines, we deliver 1.2M+ pieces daily. Our in-house mold workshop ensures short lead times and consistent quality.
From your initial inquiry to final delivery, we streamline the entire process to save you time and cost.
We work with you to define specifications, materials, and application needs.
Our engineers create custom drawings and provide a clear, competitive quote.
We produce prototypes for approval, then proceed with full-scale cold heading manufacturing.
All parts go through strict inspection before being delivered on schedule.
Team ready for your project.
| Material | 40Cr (Equiv. AISI 4140 / JIS SCM440) |
| Overall Dimension | SW12㎜*23.5㎜ |
| Primary Dimensions (Across Flats) | SW=12(+0.1/-0.18)㎜ |
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We are an integrated manufacturer and trading company. We own an 11,330㎡ production base with complete cold heading equipment and quality inspection systems, offering both factory-direct pricing and professional export services to customers worldwide.
Absolutely. We specialize in custom non-standard cold-headed fasteners, providing one-stop solutions from mold design and prototype sampling to mass production, based on your drawings, samples, or specific requirements.
Lead time depends on order quantity and product complexity. For standard orders, it is typically 15–30 days. For custom projects, we will provide a clear timeline after confirming your drawings and specifications, ensuring on-time delivery with our daily production capacity of over 1.2 million pieces.
Yes, we support full customization of dimensions, materials, surface treatments, and special forming requirements. Backed by over 30 years of mold design and cold heading experience, we can quickly turn your drawings into high-quality, mass-produced parts.
We work with a wide range of materials including carbon steel, stainless steel (including magnetic grades), copper, aluminum, and other custom alloys, tailored to your specific strength, corrosion resistance, and application requirements.
We implement full-process quality control from incoming raw material inspection and in-process checks to finished product testing. Supported by our IATF 16949 certified quality management system, we ensure stable and repeatable quality for every batch.
Tell us about your project, and we’ll reply within 24 hours.
