Black Grade 8.8 Steel Oversize Flat Washer Plain Gasket Large Wider M3–M16

Black Grade 8.8 Steel Oversize Flat Washer Plain Gasket — Large Wider M3–M16

Grade 8.8 steel oversize flat washers with a larger outer diameter than standard DIN125 washers. The wider bearing surface distributes bolt load over a greater area, preventing pull-through in soft materials (wood, plastic, composite panels) and providing a stable bearing surface for oversized or elongated holes. Black oxide finish for professional appearance.

Key Specifications

Why Choose Oversize Flat Washers?

• Larger outer diameter — greater bearing surface than standard DIN125 washers; prevents pull-through in soft materials
• Grade 8.8 strength — high-strength steel for structural and heavy-duty applications
• Black oxide finish — professional appearance; light corrosion resistance for indoor use
• Oversized hole coverage — covers elongated slots and oversized holes where standard washers would fall through
• M3–M16 range — covers light electronics to heavy structural assembly

Typical Applications

• Wood and timber fastening (prevents bolt head pull-through)
• Composite panel and plywood fastening
• Structural steel assembly with oversized or slotted holes
• Furniture and cabinet assembly requiring large bearing surface
• Automotive body panel and trim fastening
• General construction and fabrication

FAQ

Q: What is the difference between oversize and standard flat washers?
A: Oversize washers have a larger outer diameter than standard DIN125 washers for the same bolt size. This provides a greater bearing surface area, which is important when fastening into soft materials (wood, plastic) or when the hole is larger than standard.

Q: Are these suitable for outdoor use?
A: Black oxide provides light corrosion resistance for dry indoor environments. For outdoor use, choose A2-70 304 stainless steel or hot-dip galvanized washers instead.

Package Contents

• Black grade 8.8 steel oversize flat washers (quantity and size per selected variant)