I am a China-based manufacturer delivering Grade 8.8 Allen Key Bolts with reliable tensile strength and corrosion resistance for heavy equipment and machinery. I understand the needs of OEMs and distributors who seek consistent quality, just-in-time deliveries, and competitive pricing. My Grade 8.8 Allen Key Bolts feature quenched and tempered finish, precise thread tolerances, and hex head compatibility with standard Allen wrenches. I source raw materials from trusted mills and perform strict in-house tests to ensure torque performance under dynamic loads. Whether you need bulk packaging, customized thread lengths, or individualized certificates, I can tailor the solution to your project timeline. I keep stock in strategic locations to support quick shipment worldwide, and I pride myself on responsive service, transparent pricing, and easy reorders. If you are seeking a durable fastener solution for construction, machinery, or automotive assemblies, contact me today for a quote.
Grade 8.8 Allen key bolts form a dependable backbone for many applications. Made from high-strength alloy steel and heat-treated to about 800 MPa, they offer strong load capacity and durability in harsh environments. Precision-ground heads and sockets ensure slip-free operation; tight tolerances and smooth finishes reduce wear and improve assembly reliability. They meet international DIN/ISO standards, delivering consistent performance across automotive, electrical, and industrial equipment. From inquiry to delivery, the service blends engineering support with fast logistics and continuous innovation. Custom lengths, thread pitches, and coatings such as zinc or black oxide are available, with rigorous QC and traceability for on-time delivery. With a manufacturing base in the Dongguan region, the operation emphasizes scalable capacity and digital collaboration to keep buyers informed. This combination of quality bolts and proactive service helps global buyers shorten development cycles and ensure reliable field results.
| Size | Length (mm) | Thread Pitch (mm) | Head Ø (mm) | Head Height (mm) | Drive Size (mm) | Tensile Strength (MPa) | Yield Strength (MPa) | Finish | Standard | Notes |
|---|---|---|---|---|---|---|---|---|---|---|
| M6 x 12 | 12 | 1.00 | 10.0 | 4.2 | 4 | 800 | 640 | Blue Zinc Plated | DIN 912 (ISO 4762) | Compact electronics enclosure applications. |
| M6 x 20 | 20 | 1.00 | 10.0 | 4.2 | 4 | 800 | 640 | Blue Zinc Plated | DIN 912 (ISO 4762) | General mechanical assemblies. |
| M8 x 16 | 16 | 1.25 | 13.0 | 4.6 | 5 | 800 | 640 | Yellow Zinc Plated | DIN 912 (ISO 4762) | Higher load capacity in light machines. |
| M8 x 25 | 25 | 1.25 | 13.0 | 5.2 | 5 | 800 | 640 | Black Oxide | DIN 912 (ISO 4762) | Precision equipment assemblies. |
| M10 x 20 | 20 | 1.50 | 17.0 | 6.0 | 6 | 800 | 640 | Blue Zinc Plated | DIN 912 (ISO 4762) | Automotive and machinery mounting. |
| M10 x 30 | 30 | 1.50 | 17.0 | 6.0 | 6 | 800 | 640 | Yellow Zinc Plated | DIN 912 (ISO 4762) | Heavier-duty joints and frames. |
| M12 x 20 | 20 | 1.75 | 19.0 | 7.5 | 8 | 800 | 640 | Black Oxide | DIN 912 (ISO 4762) | Structural components and heavy assemblies. |
| M12 x 40 | 40 | 1.75 | 19.0 | 7.5 | 8 | 800 | 640 | Blue Zinc Plated | DIN 912 (ISO 4762) | Thick panels and frame connections. |