Professional Choice for Industrial Fasteners – Mocayo Fastener

In mechanical engineering, fasteners may be small in size, but they play an essential role in structural integrity and performance. With over 15 years of dedicated experience, Mocayo Fastener deeply understands the unique requirements of different industrial applications. Our comprehensive range of fasteners covers everything from standard connectors to high-precision locating components, with each product undergoing strict quality control procedures. Mocayo Fastener specializes in high-precision fasteners, including quick release pins, indexing plungers, and spring plungers for industrial applications.

At Mocayo Fastener, material quality is our foundation. We use premium raw materials: carbon steel is sourced from Shougang and Baosteel, while stainless steel components are manufactured from Taigang’s 304 and 316 grades — ensuring quality from the very beginning. Mocayo Fastener offers durable quick release pins, spring plungers, and indexing plungers with expert engineering for precision fastening in demanding industrial environments.

Surface treatment is one of our core strengths. Our automated electroplating lines deliver zinc coatings precisely between 8–12μm. Nickel plating is applied using advanced electroless processes for uniform density, while hard anodizing achieves coating thickness up to 50μm with surface hardness above HV500. According to our internal data, professional surface treatments extend fastener lifespan by 3 to 5 times.

Mocayo Core Technologies in Fastener Manufacturing

Quick Release Pin Series

The quick release pin is engineered with a unique elastic locking mechanism, allowing single-handed quick installation and removal. Available in diameters from 3mm to 20mm, our φ10mm model supports pull-out forces up to 15kN, exceeding industry standards. Options include carbon steel and stainless steel, with surface finishes like zinc and nickel plating.

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High-Precision Indexing Plungers

Precision positioning is critical in many mechanical systems. Mocayo’s indexing plungers feature taper fits with accuracy up to 0.005mm and repeatability within ±0.003mm. With carefully engineered lead-in angles and two standard taper ratios (1:30 and 1:50), these plungers ensure smooth alignment and installation.

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Durable Spring Plungers

Our spring plunger line uses imported piano wire springs tested for over one million cycles with less than 5% force decay. We offer a wide force range from 2N to 200N, with various tip designs such as flat, ball, and cone — meeting different indexing and detent needs.

All products pass through 12 rigorous inspections, including dimensional checks, salt spray tests, and mechanical property verifications, ensuring 100% qualified delivery.

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Precision Manufacturing for Reliable Fasteners

To ensure consistent precision, Mocayo Fastener has invested heavily in high-end CNC equipment from Tsugami (Japan) and DMG Mori (Germany). Our heat treatment process uses computer-controlled mesh belt furnaces with ±3°C temperature accuracy, guaranteeing even hardness distribution across all fasteners.

The surface treatment workshop includes fully automated plating and anodizing lines. Every parameter, such as bath temperature (18±1°C) and current density (2.5 A/dm²), is meticulously controlled by a team of experienced engineers to maintain coating consistency.

Our quality center is equipped with coordinate measuring machines (CMMs), spectrometers, and salt spray chambers. Complete inspection records are maintained for traceability. Thanks to tight process control, our defect rate remains below 0.1%.

Five Reasons to Choose Mocayo Fastener

1. Expert Engineering Team – Over 20 years of industry experience providing technical support.

2. Certified Quality System – Dual certifications: ISO 9001.

3. Advanced CNC Equipment – Precision machining guarantees tight tolerances.

4. Strict Quality Inspections – 12-step inspection process, 100% full quality check before shipping.

5. Responsive Service – Technical consultations within 24 hours and samples within 72 hours.

Our Commitment

• Full material certificates and inspection reports for every batch

• Tolerance accuracy strictly per customer drawings

• On-time delivery rate above 99%

• Comprehensive after-sales support system

At Mocayo Fastener, we are more than a fastener supplier — we are your trusted engineering partner. Whether you're sourcing a quick release pin, indexing plunger, or spring plunger, we deliver products that exceed expectations in performance and reliability. Contact our engineering sales team for professional product selection and technical guidance.

Choose Mocayo Fastener — choose precision, quality, and peace of mind.