| Size | M6 to M56 or 1/4” to 2 1/4” |
|---|---|
| Type | Bolt, Nut, Screw, Washer, Rivet, Threaded Rod, Studs, Coated, Nails, Custom Fasteners |
| Standard | Din, Iso, Jis, Gb, Is, Bs, Astm |
| Length | 10 mm to 1200 mm |
| Material | Stainless Steel, Monel, Inconel, Incoloy, Hastelloy, Nickel, Silicon Bronze, Phosphor Bronze |
Coated Fasteners Supplier in India – Zinc Plated, Hot Dip Galvanized (HDG), PTFE, Dacromet, Black Oxide | Grade 8.8, 10.9, 12.9, A2-70, A4-80
Ananka Group is a well-known coated fasteners Manufacturer producing high-quality, marine, and industrial fasteners, which are anti-corrosive. Works Protective Coating Protective finishes are available on coated bolts and coated nuts. Coated bolts are available galvanized (hot-dipped), zinc plated, PTFE coated, Xylan coated, and phosphate. These are alloy, carbon steel, and stainless steel fasteners that meet international standards like ANSI, DIN, ASTM and ISO fasteners. They cannot be dispensed with in such fields as oil and gas, marine, construction, automotive, and power generation, where safety and performance rely on long-term corrosion protection, chemical resistance, and durability.
The global B2B market seeks bulk fastener supplies whose coatings last a long time among the construction firms, OEM producers, project contractors, and suppliers of raw industrial materials. We offer high volume production, the availability of ready stocks, and rapid shipment around the world in order to meet the stringent project deadlines. To get the finest bargain on coated fasteners along with high-security, reliable, and corrosion-proof measures for your industrial undertakings, contact us immediately.
Grade Table – Coated Fasteners
| Base Material | Strength Grade | Coating Type | Coating Thickness (Approx.) | Corrosion Resistance | Common Applications |
|---|---|---|---|---|---|
| Carbon Steel | 4.6 | Zinc Plated (Electro Galvanized) | 5–12 Microns | Moderate | General industrial use |
| Carbon Steel | 5.6 | Zinc Yellow / Blue | 5–12 Microns | Moderate | Light engineering |
| Carbon Steel | 8.8 | Zinc Plated / Black Oxide | 5–15 Microns | Moderate | Machinery & automotive |
| Carbon Steel | 8.8 | Hot Dip Galvanized (HDG) | 40–80 Microns | High | Structural & outdoor |
| Alloy Steel | 10.9 | Zinc Flake (Dacromet / Geomet) | 8–12 Microns | Very High | Automotive & heavy duty |
| Alloy Steel | 12.9 | Black Oxide | 1–2 Microns | Low–Moderate | High tensile indoor use |
| Alloy Steel | 10.9 / 12.9 | PTFE / Xylan Coated | 20–30 Microns | Excellent | Chemical & marine industry |
| Stainless Steel | A2-70 | PTFE Coated | 15–25 Microns | Excellent | Marine & coastal areas |
| Stainless Steel | A4-80 | Fluoropolymer Coated | 20–30 Microns | Superior | Offshore & chemical plants |
| Carbon Steel | 8.8 | Mechanical Galvanized | 15–25 Microns | High | Construction & infrastructure |
The Coated Fasteners grade table provides a clear overview of the combination of base material strength grades and protective coating types used to enhance performance in different environments. Strength grades such as 4.6, 8.8, 10.9, and 12.9 define the mechanical properties and load-bearing capacity of the fastener, while coatings like Zinc Plating, Hot Dip Galvanizing (HDG), Dacromet/Geomet, Black Oxide, and PTFE/Xylan improve corrosion resistance, durability, and service life. By referring to the grade table, engineers and buyers can select the right coated fastener based on exposure conditions, required tensile strength, and industry standards, ensuring reliable performance in construction, automotive, marine, infrastructure, and heavy engineering applications.
Coated Fasteners Weight Chart in KG, MM, PDF
| Size (MM) | 20 MM | 30 MM | 40 MM | 50 MM | 60 MM | 80 MM | 100 MM |
|---|---|---|---|---|---|---|---|
| M6 | 4.3 | 5.9 | 7.6 | 9.2 | 10.9 | 14.1 | 17.4 |
| M8 | 8.3 | 11.5 | 14.7 | 17.9 | 21.1 | 27.5 | 33.8 |
| M10 | 16.8 | 23.3 | 29.8 | 36.3 | 42.8 | 55.9 | 68.6 |
| M12 | 29.3 | 40.7 | 52.1 | 63.5 | 74.9 | 97.8 | 120.6 |
| M16 | 66.5 | 92.0 | 117.5 | 143.0 | 168.5 | 219.5 | 270.5 |
| M20 | 127.5 | 173.5 | 219.5 | 265.5 | 311.5 | 403.5 | 495.5 |
| M24 | 230.0 | 280.0 | 330.0 | 380.0 | 430.0 | 530.0 | 630.0 |
Coated Fasteners are specially treated fastening components designed to provide enhanced corrosion resistance, durability, and long-term performance in demanding environments. These fasteners are typically manufactured in carbon steel, alloy steel (grades 8.8, 10.9, 12.9), and stainless steel (A2-70, A4-80), and then coated with protective finishes such as Zinc Plating, Hot Dip Galvanizing (HDG), Dacromet/Geomet, Black Oxide, PTFE, or Xylan. The coating acts as a protective barrier against moisture, chemicals, and environmental exposure, making it suitable for construction, infrastructure, marine, automotive, and heavy engineering applications. By combining high tensile strength with advanced surface protection, coated fasteners ensure reliable performance, reduced maintenance, and extended service life in both indoor and outdoor industrial conditions.
Type of Sub-products

Ptfe Coated Fasteners Ptfe Coated Fasteners
Chemically resistant fasteners for marine, oil & gas, and refinery applications.

Hot Dip Galvanized Fasteners Hot Dip Galvanized Fasteners
Zinc coated for long term protection in outdoor and infrastructure environments.
