Yingfeng Zhichengjia Pull-Through Rivets (PT Rivets)

Also known as: Countersunk Pull-Through Blind Rivets, Flush-Flush Blind Rivets.

Classification: Engineering-grade specialized blind fasteners designed for dual-side flush riveting.

I. Core Structural Principles (Exclusive PT Features)

1. Pull-Through Mandrel Design

Unlike conventional blind rivets where the mandrel breaks and leaves a retained head inside the application, the mandrel of the Yingfeng Zhichengjia Pull-Through rivet is completely drawn through and extracted from the backside during setting. This guarantees zero metal debris and zero internal loose hardware.

2. Dual-Side Countersunk Flush Structure

Featuring a countersunk configuration on both ends, this rivet ensures that both the front and back sides of the panels remain completely flat post-riveting. The backside protrusion is $\le$ 0.4 mm, achieving a virtually flush surface that eliminates assembly interference and prevents scratching adjacent components.

3. One-Piece Mandrel Integrity

The mandrel head remains integrally attached to the shaft throughout the entire setting process. This completely eliminates the risk of stray metal fragments falling into assemblies, preventing electrical short circuits, rattling, or mechanical wear.

II. Material & Dimensional Specifications

Mainstream Materials

Standard Version: Carbon Steel (C1006/1010), fully zinc-plated for corrosion resistance, offering high strength and cost-efficiency.

Premium Options: Stainless Steel (Grade 304/316) for outdoor, high-humidity, and highly corrosive environments; Aluminum for lightweight applications and thin sheet metal.

Standard Dimensions

Nominal Diameters: 3.2 mm / 4.0 mm / 4.8 mm

Grip Lengths: Tailored to match varying panel thicknesses, covering a wide grip range from 0.5 mm to 6.0 mm.

Head Style: Standard 90° countersunk head, perfectly matching pre-countersunk holes.

III. Key Advantages

Zero Internal Debris for Maximum Safety: No residual steel balls or metal fragments are left inside electronic devices or precision appliances, eliminating the risks of short circuits, abnormal noises, or PCB scratches.

Dual-Side Flush for Space Saving: The protrusionless profile on both sides makes it ideal for tight clearance gaps and sliding components (e.g., drawers, chassis slides, and interior panels).

Stable Clamping Force & Anti-Vibration: Delivers uniform radial expansion and excellent resistance to loosening under high-vibration environments—perfect for automotive and server rack applications.

Optimized for Thin Sheet & Brittle Substrates: Even distribution of setting forces prevents the crushing or cracking of thin aluminum sheets, plastics, fiberglass, or PCBs.

Visual Specification Coding: Mandrels are color-coded by length, allowing assembly line operators to quickly differentiate models and eliminate installation errors.

IV. Typical Applications

1. Electronics & Electrical Appliances (Core Scenarios)

Laptops, industrial PC chassis, refrigerator/air conditioner liners, electrical control boxes, and PCB mounting.

2. Automotive Interiors

Sunroof assemblies, car audio enclosures, door panel trims, and storage console glove box glides.

3. Sheet Metal Furniture

Metallic cabinet drawers, server racks, and precision toolboxes.

4. Precision Equipment

Instrument enclosures, medical device housings, and ultra-thin metal decorative panels.

V. Product Comparison: PT Rivets vs. Standard Countersunk Blind Rivets

VI. Installation & Tooling Requirements

1.Tooling: Must be installed using a specialized pull-through blind riveting tool (standard break-stem rivet guns cannot be used).

2.Panel Pre-treatment: The mating substrates must be pre-drilled with a 90° countersunk hole to achieve the dual-side flush effect.

3.Applicable Substrates: Highly compatible with metals, plastics, fiberglass, and thin composite panels.

About Us

Yingfeng Zhichengjia Precision Hardware (Shenzhen) Co., Ltd. is deeply committed to addressing the practical pain points of precision fastening applications through continuous product iteration. This Flush-Flush Pull-Through Blind Rivet stands as a flagship masterpiece in our precision hardware lineup. By eliminating traditional fastening headaches such as structural residue, uneven profiles, and safety hazards, we provide high-precision, ultra-stable riveting solutions for our global partners across the electronics, automotive, and precision equipment industries.