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Automotive Shock Absorber Flat Hole Inner Sleeve

Produced by Ningbo Romy Fasteners Co., Ltd. with advanced technology, built for reliable performance

Automotive Shock Absorber Flat Hole Inner Sleeve
Automotive Shock Absorber Flat Hole Inner Sleeve
Automotive Shock Absorber Flat Hole Inner Sleeve
Automotive Shock Absorber Flat Hole Inner Sleeve
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Automotive Shock Absorber Flat Hole Inner Sleeve

Flat hole inner sleeve for automotive chassis. 6‑tooth, flat hole and deep hole formed by one‑step cold heading.

As Your Trusted Cold Heading Partner, We Deliver Quality, Efficiency, And Customization

Core Strengths

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.

Facilities & Production Capacity

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.

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sabrina.yu@romymetal.com

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We Deliver Custom Fastener Solutions In 4 Simple Steps

From your initial inquiry to final delivery, we streamline the entire process to save you time and cost.

01. Requirement Analysis

We work with you to define specifications, materials, and application needs.

02. Design & Quotation

Our engineers create custom drawings and provide a clear, competitive quote.

03. Sample & Production

We produce prototypes for approval, then proceed with full-scale cold heading manufacturing.

04. Quality Check & Delivery

All parts go through strict inspection before being delivered on schedule.

Talk Directly With Our Fastener Experts

Team ready for your project.

Description

Automotive Shock Absorber Flat Hole Inner Sleeve designed for automotive chassis applications, ensuring stable structural support and precise mechanical alignment. The 6-tooth structure, flat hole, and deep hole are formed through a one-step cold heading process, providing excellent dimensional accuracy, high strength, and consistent performance without secondary machining.

Manufactured from 20# steel (AISI 1020 equivalent), this Automotive Shock Absorber Flat Hole Inner Sleeve offers superior durability and wear resistance for demanding suspension environments. With an overall dimension of φ39 × 32.7 mm and precise flat hole / 6-tooth specifications (17.3±0.15 mm × 14.3±0.15 mm; φ23.6 +0.2/-0.4 mm × 6-0.4±0.2 mm), it ensures reliable fitment, stable torque transmission, and long service life in automotive chassis systems.

Material20#  (Equiv. AISI 1020)
Overall Dimensionφ39㎜*32.7㎜
Main Dimension (Flat Hole / 6‑tooth)17.3(±0.15)㎜*14.3(±0.15)㎜
φ23.6(+0.2/-0.4)㎜*6-0.4(±0.2)㎜

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We provide custom cold-headed fasteners and components for industrial, automotive, construction and EV applications. Tell us your requirements, and our team will get back to you with a detailed quote and technical support.
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  • Common Questions

Frequently Asked Questions About Romy & Our Products

Have Other Questions ?

Get answered by our personal team

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.

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