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M3 Socket Head Cap Screws Assortment Kit 1000Pcs, M3x6/8/12/16/20/30mm Hex Bolts with Nuts & Washers, 12.9 Grade Alloy Steel Black Zinc, 3D Printing DIY Fastener Set
- Electroplating Process + Oil-Free Design: Adopts high-quality electroplating technology with a smooth, dense surface free of greasy residues. No hand or tool staining during handling and installation, ensuring a clean and efficient construction process.
- 200+ Hours Salt Spray Test Certified: Complies with ISO 9227:2022 (Neutral Salt Spray/NSS) standard, with corrosion resistance exceeding 200 hours. No red rust on the surface, and white rust ratio 3%, easily adapting to harsh environments such as outdoor humidity and coastal high salinity.
- 12.9 Grade High-Strength Hardcore Quality: Meets 12.9 grade hardness standards, with tensile strength and shear resistance far superior to ordinary bolts. Capable of withstanding high-strength fastening requirements for heavy machinery and industrial supports.
- Rich specifications and ample quantity: This kit comes with 1000 Pcs M3 hex socket head cap screws, nuts and washers, featuring 6 frequently used lengths (6/8/12/16/20/30mm). It is ideal for assembly, fastening and maintenance of 3D printers, models, DIY projects and general hardware applications.
- High-Precision Thread Engagement: Thread accuracy remains unaffected after electroplating, enabling smooth screwing without jamming. Features strong fastening force, no easy loosening or slipping, and is compatible with various nuts and connectors.
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M3 Socket Head Cap Screws Assortment Kit 1000Pcs, M3x6/8/12/16/20/30mm Hex Bolts with Nuts & Washers, 12.9 Grade Alloy Steel Black Zinc, 3D Printing DIY Fastener Set
Warranty & Returns
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Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: 30 days
- This item is covered by Heroniky Return Policy
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