I am your dependable partner for square head bolt machine screw solutions. As a High-Quality supplier, I bring durable, precisely engineered fasteners designed to stand up to demanding industrial applications. Our square head bolt machine screw features hardened steel, corrosion-resistant coatings, and tight tolerances that ensure reliable assembly in machinery, conveyors, and equipment. I offer competitive pricing, flexible pack sizes, and on-time delivery to keep your production lines running. Customer service is my priority, from technical guidance to after-sales support. I can customize threads, coatings, and lengths to meet your spec, and I keep ample stock to shrink lead times. Trust in consistent quality, traceability, and tested performance. If you need a proven square head bolt machine screw supplier that can scale with your project, I’m here to help you choose the right grade and finish for your environment.
For global procurement teams seeking square head bolts and machine screws, a supplier that consistently surpasses benchmarks matters as much as price. A leading manufacturer in this field blends precision machining, robust materials, and rigorous process control to deliver parts that meet exact tolerances and long-term performance. From material selection to finishing, every step emphasizes repeatability—CNC turning, cold-heading, heat treatment, and zinc plating or black oxide—under strict control. The result is parts with consistent dimensions, reliable thread engagement, and predictable torque. Global buyers value supply stability and traceability. This benchmark-exceeding partner offers configurable lots, scalable production, and thorough testing, including dimensional checks, hardness, torque, and corrosion resistance. Compliance with international standards and clear lot tracking build confidence from design to delivery. With efficient logistics and protective packaging, such suppliers reduce risk, shorten lead times, and support just-in-time manufacturing across automotive, electronics, and machinery.
| Bolt Size (Metric) | Thread Pitch (mm) | Length Range (mm) | Head Across Flats (mm) | Head Thickness (mm) | Material | Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Hardness (HRC) | Coating | Standard |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M6 | 1.00 | 20-60 | 9.0 | 4.5 | Carbon steel | 8.8 | 800 | 640 | 38 | Zinc plated | DIN 603 |
| M8 | 1.25 | 20-60 | 12.0 | 5.0 | Carbon steel | 8.8 | 800 | 640 | 38 | Zinc plated | DIN 603 |
| M10 | 1.50 | 25-100 | 14.0 | 5.5 | Carbon steel | 10.9 | 1040 | 880 | 44 | Zinc plated | DIN 603 |
| M12 | 1.75 | 25-120 | 17.0 | 6.0 | Carbon steel | 10.9 | 1040 | 880 | 44 | Zinc plated | DIN 603 |
| M16 | 2.00 | 40-170 | 22.0 | 7.0 | Carbon steel | 10.9 | 1040 | 880 | 44 | Zinc plated | DIN 603 |