From a China-based Manufacturer, I bring you m4 security bolts built for tough industrial applications. I understand B2B buyers like you need reliability, compatibility, and steady supply, so I design and test every batch under strict QA. My m4 security bolts use hardened steel, precise threads, and anti-tamper features to resist cutting and pulling. They fit standard metric assemblies, but I also offer tamper-proof heads and pin-in heads for higher security, depending on your risk profile. I can support small pilot orders and scale to large volumes, with short lead times and flexible packaging. Certificates, traceability, and consistent quality are always included, because your project deserves nothing less. If you are sourcing from China and looking for a dependable Manufacturer to partner with, I’m ready to discuss your specs, required finishes, and volume discounts. Let me show you how m4 security bolts protect enclosures, machinery, and critical equipment, with service you can rely on.
M4 security bolts offer a compact, tamper‑resistant fastening solution for protecting enclosures, panels, and equipment housings. Security heads such as Torx or pin variants deter tampering while ensuring reliable installation. Available in stainless steel (304/316) or alloy, with finishes like zinc, black oxide, or passivation for corrosion resistance, they suit indoor and outdoor use. They deliver strength in a small form with easy installation for professionals. Global buyers should match the bolt to the application by considering M4 thread, length, head type, drive, material, finish, and exposure. Key criteria are corrosion resistance, required torque, and tool compatibility. Ensure quality through QC, RoHS/REACH compliance, and traceability. Seek consistent lead times, proper packaging, and scalable supply to support steady production. A reliable M4 security bolt minimizes downtime and maintains security across markets.
| Length (mm) | Material | Grade / Class | Coating | Head Type | Thread Pitch (mm) | Tensile Strength (MPa) | Yield Strength (MPa) | Standards |
|---|---|---|---|---|---|---|---|---|
| 6 | Steel | 8.8 | Zinc Plated | Hex Head | 0.70 | 800 | 640 | ISO 898-1, DIN 931 |
| 8 | Steel | 8.8 | Zinc Plated | Hex Head | 0.70 | 800 | 640 | ISO 898-1, DIN 931 |
| 12 | Steel | 8.8 | Zinc Plated | Hex Head | 0.70 | 800 | 640 | ISO 898-1, DIN 931 |
| 16 | Stainless Steel (A2-70) | A2-70 | None | Hex Head | 0.70 | 520 | 210 | ISO 3506 |
| 20 | Stainless Steel (A2-70) | A2-70 | None | Hex Head | 0.70 | 520 | 210 | ISO 3506 |
| 25 | Steel | 8.8 | Black Oxide | Hex Head | 0.70 | 800 | 640 | ISO 898-1, DIN 931 |