CSK Allen Bolts

Precision Fastening with a Flush Finish

Our CSK Allen Bolts (Countersunk Socket Head Cap Screws) provide a sleek, flush finish while ensuring high-strength fastening in industrial, mechanical, and structural applications. These bolts are designed for countersunk installations, allowing for a smooth surface without protrusions. With a hexagonal socket drive, they offer excellent torque transmission and resistance to stripping.

✅ High-Strength Material – Made from carbon steel, alloy steel, or stainless steel (304/316) for superior durability.

✅ Countersunk Head Design – Sits flush with the surface, ideal for applications requiring a smooth finish.

✅ Allen (Hex) Drive – Provides secure grip and reduced risk of slipping compared to slotted or Phillips drives.

✅ Corrosion-Resistant Coatings – Available in black oxide, zinc-plated, hot-dip galvanized, and stainless steel finishes.

✅ Multiple Thread Options – Offered in metric (M4 – M20) and imperial sizes with fine or coarse threads.

✅ High Tensile Strength – Available in Grade 8.8, 10.9, and 12.9 for heavy-load applications.

✔ Sleek, Professional Look – The countersunk head provides a clean, smooth appearance.

✔ Superior Torque & Load Capacity – Handles high-stress applications without loosening.

✔ Rust & Corrosion Resistant – Suitable for indoor, outdoor, and marine environments.

✔ Easy Installation & Removal – Works with hex keys (Allen wrenches) for a secure grip.

✔ Ideal for Precision Assembly – Used in machinery, automotive, aerospace, and metal fabrication.

Specification

Details

Material

Carbon Steel, Alloy Steel, Stainless Steel (304/316)

Finish Options

Black Oxide, Zinc-Plated, Hot-Dip Galvanized, Stainless Steel

Thread Type

Metric & Inch (UNC/UNF)

Available Sizes

M4 – M20 (Metric) / 1/4” – 3/4” (Imperial)

Tensile Strength

Grade 8.8, 10.9, 12.9 (High Strength)

Drive Type

Allen (Hex Socket)

Applications

Machinery, Automotive, Aerospace, Metal Fabrication

🔹 Industrial Machinery & Equipment – Used for precision fastening in machine assemblies.

🔹 Automotive & Aerospace – Essential for high-torque, vibration-resistant connections.

🔹 Structural & Metal Fabrication – Ensures secure fastening in steel structures.

🔹 Electronics & Furniture – Provides aesthetic and functional fastening in high-end furniture and devices.

✔ Precision Engineering – Manufactured to tight tolerances for perfect alignment.

✔ Flush & Aesthetic Finish – Ideal for applications requiring a smooth surface.

✔ Durable & Long-Lasting – Built for harsh environments and heavy loads.

✔ Custom Sizes & Bulk Orders Available – Contact us for specialized dimensions and coatings.

✔ Trusted by Professionals – Used by engineers, manufacturers, and contractors worldwide.

For strong, precise, and professional fastening, choose our CSK Allen Bolts – built for performance, durability, and a clean finish.