Special Features

High-Strength Steel Construction：These extra thick flat washers are manufactured from high-grade carbon steel, which is known for its significant tensile strength and rigidity. This choice of steel material ensures that each washer can withstand substantial clamping forces without deforming, cracking, or shearing under pressure. The inherent strength of the metal makes these reinforcement washers suitable for demanding applications where joint integrity is critical.
Enhanced Load Distribution & Surface Protection：The primary mechanical function of these large flat washers is to significantly increase the bearing surface area under the head of a bolt or nut. With an outer diameter of 3cm (approximately 1.18 inches), they create a much wider contact patch compared to standard washers. This design effectively distributes the load of the tightened fastener over a greater area of the underlying material. This is crucial for preventing "pull-through" in soft materials like wood or plastic, reducing localized stress that can cause cracking or indentation.
Corrosion-Resistant Black Finish：To improve durability in various environments, these metal washers feature a uniform black oxide finish. This surface treatment creates a thin, stable layer of magnetite on the steel, which provides a baseline of corrosion resistance against rust and tarnish, especially in dry or indoor conditions. The matte black finish also offers a degree of aesthetic discretion, blending with darker fasteners and materials without a reflective shine.
Precision Dimensions for Secure Fit：Designed with an M6 inner diameter, these washers are engineered for a precise fit on standard M6 bolts, screws, and threaded rods. The specified dimensions ensure that the washer sits concentrically around the fastener shaft, allowing for even pressure distribution. The combination of a large outer diameter (3cm) and increased thickness provides a substantial mass that contributes to the washer's structural role.
Versatile Industrial & DIY Applications：The utility of these heavy-duty flat washers spans a wide range of projects. In industrial applications, they are used in machinery assembly, framework construction, and equipment repair where robust load-bearing is required. They serve in mounting brackets, suspension components, and body panels. DIY enthusiasts and woodworkers find them invaluable for reinforcing furniture joints, securing decking, or in any project involving lag bolts into wood where a large bearing surface prevents the bolt head from embedding.

Description

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Features:

Made from high-strength carbon steel for durability and load capacity

Extra thick design and large 3cm diameter for enhanced load distribution

Black oxide finish provides basic corrosion resistance and a clean look

Precision M6 inner diameter for a secure fit on standard bolts and screws

Suitable for a wide range of industrial, automotive, and DIY projects

Specifications:
Product Name: 100pcs M6 Extra Large Thick Flat Washers
Color: Black
Material: Carbon Steel (Black Oxide Finish)
Weight (per washer): ~8g
Product Dimensions (each washer):

Inner Diameter: M6 (6mm)

Outer Diameter: 3 cm / 1.18 inch

Thickness: Extra Thick
Packaging Dimensions: 19x14x4 cm
Total Package Weight: 812g
Package Contents: 100 x M6 Large Flat Washers

Remarks:
Due to manual measurement, there may be slight errors in dimensions.
Due to different monitor displays, the actual color may vary slightly from the images.

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100 Pack 1/4" ID x 1-1/4" OD Fender Washers, Black Oxide, Thickened 18-8(304) Stainless Steel M6 Large Flat Washers, Washer for 1/4" Screws & Bolts

Special Features

Description

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