When you need Phillips Pan Head Machine Screw — GB/T 818 / ISO 7045 (Series 033) in the M6 size, the controlling values come from GB/T 818 / ISO 7045. This page lists them in one place — pitch, head geometry, tool size and the matching hole.
M6 Dimensional Row (GB/T 818 / ISO 7045)
| Size | Pitch (mm) | Length L (mm) | Head diameter dk (mm) | Head height k (mm) | Cross recess | Reference standard |
|---|---|---|---|---|---|---|
| M6 | 1.0 | 40 | 12.0 | 3.6 | PH3 | ISO 7045 / GB/T 818 |
Spanner & Drive for M6 Phillips Pan Head Machine Screw — GB/T 818 / ISO 7045 (Series 033)
M6 Phillips Pan Head Machine Screw — GB/T 818 / ISO 7045 (Series 033) use a PH3 cross recess. Match the driver bit to the recess (Phillips PH / Pozi PZ are NOT interchangeable).
Hole Sizes for M6
| Coarse-thread pitch (ISO 724) | 1 mm |
|---|---|
| Through-hole / clearance (ISO 273 medium) | 6.6 mm |
| Tapping drill, coarse thread | 5 mm |
Tightening Torque for M6
| Class 8.8 (dry, ~µ 0.125) | ≈ 10 Nm |
|---|---|
| Class 10.9 (dry, ~µ 0.125) | ≈ 14 Nm |
| Class 12.9 (dry, ~µ 0.125) | ≈ 17 Nm |
Indicative dry-joint values. Lubrication can lower the required torque by 15–25%. Always confirm against the joint design, especially when going up a strength class.
Common Applications for M6 Phillips Pan Head Machine Screw — GB/T 818 / ISO 7045 (Series 033)
M6 Phillips Pan Head Machine Screw — GB/T 818 / ISO 7045 (Series 033) are commonly specified for machine assembly, general engineering, plant maintenance and OEM equipment.
Installation Tips for M6 Phillips Pan Head Machine Screw — GB/T 818 / ISO 7045 (Series 033)
- Pozidriv (PZ) drivers ride out of Phillips (PH) recesses and vice versa — confirm the recess marking on the head before assembly.
- For automated assembly, an ACR (Anti-Cam-Out Ribs) or torx-equivalent driver gives noticeably longer bit life than plain PH.
Mating Parts for M6
For M6, pair with a M6 hex nut (ISO 4032 / DIN 934) and, where used, a M6 flat washer (ISO 7089 / DIN 125A) under the head and under the nut.