Small yellow croaker anchor

Small yellow croaker anchor

The Duojia “Small Yellow Croaker YJT 1045” is a specialized plastic expansion anchor designed for light to medium-duty fastening in drywall, gypsum board, and other solid or hollow base materials. The anchor gets its unique name from its typically compact size and yellow color. Manufactured from high-quality, impact- and aging-resistant polypropylene, this anchor provides a lightweight, corrosion-proof, and reliable solution for mounting a wide variety of items in homes, apartments, and offices. Its design ensures a tight grip without cracking the base material, making it a practical and discreet choice.

Clarification on Anchor Type and Design

This fastener is a friction-based expansion plug, also known as a wall plug or screw anchor. It features a plastic body with pre-cut slots and external ribs. When a screw is driven into the anchor’s hollow core, the body expands, pressing the ribs firmly against the inner walls of the drilled hole. This creates a secure frictional hold that resists pull-out forces. The YJT 1045 standard denotes a specific design and sizing for this type of anchor.

Crucial Clarification on Product Parameters:
It is critical to note that the product parameters listed on the source page contain significant inaccuracies that are inconsistent with the nature of a plastic anchor.

  • Grade: The listed strength grades (e.g., 4.8, 8.8, 10.9) are international standards for the mechanical properties of steel bolts and screws. These grades are not applicable to plastic anchors. The holding strength of a plastic plug is determined by its design, material (polypropylene), and the integrity of the base material, not by a steel grade.
  • Application: The application listed as “Heavy Industry” is incorrect. As confirmed by the product’s own introductory text, these anchors are for “low to medium load applications” with a typical capacity of up to 10kg. They are not suitable for heavy industrial or structural loads.
  • Size: The general “Size” range of M6-M20 is a generic placeholder. The detailed sizing tables provide the accurate and specific dimensions for this product line.
  • Dimensional Table: The column labeled “Recommend Hole Size” is misleading. Based on the values, this column should be interpreted as the “Recommended Hole Depth,” which must be greater than the anchor’s length to accommodate the screw tip and any debris.

Product Mechanism and Installation

The anchor functions by expanding within the drilled hole to create a secure, friction-based grip.

  • Installation Process:
    1. Drill the Hole: Using a drill bit that matches the anchor’s nominal diameter (e.g., 6mm, 8mm, or 10mm), drill a hole into the wall. Ensure the hole is drilled to the recommended depth.
    2. Clean the Hole: Remove any dust and debris from the hole to ensure a proper fit.
    3. Insert the Anchor: Push the plastic anchor into the hole until its collar is flush with the wall surface.
    4. Fasten the Object: Place your fixture over the anchor, align the mounting hole, and drive the correct size screw into the anchor’s core using a Phillips screwdriver.
    5. Set the Anchor: As you tighten the screw, the anchor will expand and grip the wall firmly. Do not over-tighten, as this can damage the drywall or strip the anchor’s grip.

Product Parameters

Parameter ItemSpecification Description
Product NameSmall Yellow Croaker YJT 1045
Brand NameDuojia
Place of OriginHebei, China
MaterialPlastic (High-Quality Polypropylene)
Surface TreatmentPlain (Natural plastic finish, typically yellow)
GradeNot Applicable (Steel grades do not apply to plastic anchors)
Measurement SystemMetric
ApplicationLight to Medium-Duty Fastening in Drywall and Masonry
CertificationsISO9001, ISO14001, ISO45001, SGS
Packaging OptionsSmall Pack+Carton+Pallet; Bag/Box with Pallet

Dimensional and Sizing Information (YJT 1045 Standard)

The following table combines and clarifies the sizing data from the product page.

Nominal Size (Diameter x Length)Required Drill Bit (mm)Anchor Length (mm)Recommended Hole Depth (mm)Recommended Screw Diameter (mm)
6 x 30 mm630403.5 – 4
6 x 40 mm640503.5 – 4
6 x 60 mm660703.5 – 4
6 x 80 mm680903.5 – 4
6 x 100 mm61001103.5 – 4
8 x 40 mm840505 – 5.5
8 x 60 mm860705 – 5.5
8 x 80 mm880905 – 5.5
8 x 100 mm81001105 – 5.5
8 x 120 mm81201305 – 5.5
8 x 135 mm81351455 – 5.5
8 x 150 mm81501605 – 5.5
10 x 50 mm1050606 – 7
10 x 60 mm1060706 – 7
10 x 80 mm1080906 – 7
10 x 100 mm101001106 – 7
10 x 120 mm101201306 – 7
10 x 135 mm101351456 – 7
10 x 160 mm101601706 – 7
10 x 200 mm102002106 – 7

Key Features

  • Durable Material: Made from high-quality polypropylene, offering good resistance to impact and aging.
  • Expansion Grip: The slotted body and ribbed design ensure the anchor expands for a tight, reliable grip inside the wall.
  • Corrosion-Proof: As a plastic fastener, it will not rust or corrode, making it suitable for various indoor environments.
  • Wide Size Range: Available in a large variety of lengths for different wall thicknesses and application requirements.
  • Protects Wall Surface: Designed to provide a secure hold in drywall without causing cracks or damage.

Common Applications

  • Hanging picture frames, clocks, and other wall art.
  • Mounting small wall fixtures and decorative items.
  • Installing lightweight shelves and brackets.
  • Securing cable clips and routing electrical wires.
  • General-purpose light-duty fastening in residential and office settings.