| A Thread size | M10x1.5 |
| L Insert lengths | 16.0 mm |
| OD Insert diameter | 13.95 mm |
| Base panel material | Plastic |
| H Hole diameter | 13.0-13.5 mm |
| W Min. wall thickness | 5.10 mm |
| Y Min. Hole depth | 17.6 mm |
| Materials | Brass |
| Surface Treatment | Cleaning |
| Installation Equipment/Method | Self-tapping Insert |
1. Why is there a minimum margin setting? Is the minimum margin from the hole center to the bending edge, or to the edge of the material? If my minimum margin is not enough, what hidden dangers will there be?
A : The minimum margin is the distance from the circular edge of the hole to the edge of the workpiece.
If the hole is too close to the edge of the plate, it means that the thin plate at the edge is not strong enough. After the rivet nut is installed, the following may happen:
The edge of the thin plate is squeezed and bulged and deformed; the nut is not installed firmly and is easy to fall off.
2. The PC plastic containing glass fiber we use, when embedded in the copper nut through mold injection molding, the BOSS column around the copper nut cracks. How to deal with this situation?
A : This is internal stress cracking, which has nothing to do with the copper nut you bought (unless the nut has oil). Almost all plastic products have internal stress, and PC+glass fiber is more obvious. This is determined by the characteristics of the molecular chain itself. There is no perfect solution at present, and the direction of improvement is to eliminate internal stress:
①. Buy "better" particles for raw materials. (Original particles)
②. The copper nut cannot have oil, and the nut should be heated to about 100-150 degrees before being placed in the mold (put it in with heat-insulating gloves)
③. Appropriately increase the barrel temperature to about 300 degrees (depending on your company's materials), and appropriately increase the mold temperature to about 100-150 degrees.
④. Anneal immediately after demolding. The oven temperature is about 100-150 (depending on your company's materials) and air-cooled after 2 hours. If conditions permit, perform secondary annealing at 80-100 degrees and air-cool after 1-2 hours.
⑤. (If the design allows), increase the wall thickness of the BOSS column, or add 4 reinforcing ribs (wedges) to the outer wall of the BOSS.
The above purposes are to eliminate internal stress.