These zinc plated hexagonal long spacer nuts are precision-engineered for industrial fastening applications. Manufactured from premium alloy steel with specialized color-zinc plating, they offer excellent corrosion resistance and durability for both indoor and outdoor use. The hexagonal design ensures easy installation with standard tools, while the precisely machined through-holes provide reliable connections in machinery, electronics, and structural applications.

• Premium Alloy Construction: High-grade alloy steel provides superior strength and load-bearing capacity without deformation.
• Advanced Corrosion Protection: Specialized color-zinc plating forms a durable barrier against moisture, chemicals, and rust.
• Precision Engineering: Accurately sized hexagonal flats and perfectly tapped through-holes ensure compatibility and wobble-free installation.
• Versatile Applications: Suitable for machinery assembly, electronic components, and structural frameworks across multiple industries.

• Packaging: Moisture-resistant sealed bags with sturdy cartons. Custom packaging solutions available.
• Services: Free samples, custom production, 24/7 technical support, rapid order processing, and quality guarantee.

We manufacture according to customer specifications, samples, or technical drawings.

• Copper: H59, H62 lead-free copper, purple copper
• Titanium: TC4 (TiAl6v4, grade 5)
• Alloy Steel: 15Cr, 20Cr, 42CrMo
• Aluminum: 6061, 6063, 6082, 7075, 5052, A380
• Plastics: POM, paraformaldehyde, nylon
• Steel: Mild steel, carbon steel, 4140, 4340, Q235, Q345B
• Stainless Steel: SS303, SS304 (food grade), SS316, SS316L, SUS430, SS416

Transparent anodizing, color anodizing (with color code), chemical film, passivation, polishing, chrome plating, sandblasting, laser engraving, zinc plating, black oxide, nickel plating, chrome plating, carburizing, heat treatment.

• Rockwell Hardness Tester
• Salt Spray Tester
• Roughness Tester
• Cloud Disc High Speed Tester SP-T300