160-Piece Stainless Steel Serrated Washer Kit

Premium A2 stainless steel lock washers with internal/external teeth for maximum grip. Metric sizing (M3-M12) covers most automotive, marine, and machinery applications.

Key Features:

• Complete Set: 160 washers across 7 sizes (M3, M4, M5, M6, M8, M10, M12)

• Dual Tooth Design: Internal AND external serrations for versatile use

• Corrosion Resistant: A2 stainless steel for outdoor/marine environments

• Vibration Proof: Serrated teeth prevent loosening under stress

• Organized Storage: Compartmentalized case for easy identification

Technical Specs:

• Material: A2 (304) stainless steel

• Sizes: M3 (3mm), M4 (4mm), M5 (5mm), M6 (6mm), M8 (8mm), M10 (10mm), M12 (12mm)

• Types: Internal tooth + external tooth variants

• Finish: Natural stainless (non-plated)

• Packaging: Plastic organizer case

Ideal For:

• Automotive suspension/engine components

• Marine hardware corrosion protection

• Industrial machinery maintenance

• DIY projects requiring vibration-resistant fasteners

Installation Tips:

• Use external tooth washers under bolt heads/nuts

• Internal tooth washers work best with small fasteners (M3-M5)

• Always install with tooth side against material surface

• Pair with nylon lock nuts for critical vibration-prone applications

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