CNQLIS 521PCS M6 M8 M10 Flange Bolt Nut Assortment Kit - Class 8.8 Hex Serrated Flange Bolts with Nuts, Coarse Thread Full/Partial Threads, Metric Hardware Set

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상품 특징

• 【521-Piece Professional Flange Bolt Kit】 ✓ Complete Matching Set: 169 serrated flange bolts + 176 flange nuts + 176 flat washers (1:1:1 ratio) ✓ Pre-Sorted Sizes: No more mismatched hardware – all components neatly organized ✓ Time-Saver Design: Ready-to-use kit eliminates project delays
• 【16 Versatile Sizes for Multi-Scenario Use】 ✔ Metric Dimensions: M6 (12/16/20/25/30mm) | M8 (16/20/25/30/35/40mm) | M10 (20/25/30/35/40mm) ✔ Dual Thread Options: Fully & partially threaded bolts for flexible applications
• 【Engineered for Superior Fastening】 DIN6921 Standard: Precision-machined hex flange bolts with serrated undersides Integrated Washer Effect: Flange head/nut distributes load 30% wider than standard bolts Vibration Resistance: Serrations prevent loosening under dynamic loads (ideal for automotive/machinery)
• 【Industrial-Grade 8.8 Alloy Steel】 ✓ 58-61 HRC Hardness | ✓ 10μm Anti-Corrosion Layer ✓ Chemical Resistant: Withstands oils, weak acids/alkalis (pH 3-11) ✓ 1,200MPa Tensile Strength – Exceeds ISO 898-1 requirements
• 【Professional Packaging & Support】 3-Layer Protection: Anti-static foam inserts | 2) Reinforced plastic case | 3) Shipping-grade kraft box VIGRUE Fastener Experts: 12-year OEM/ODM experience 24h technical support Lifetime defect warranty

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