M5 Hex Washer Head Thread Forming Screws For Metal Sheets Steel
Fastener
Thread Forming Screw is designed for metal sheet ,it is made of
high tensile strength carbon steel with zinc plated . the end of
thread forming screw is formed triangle shape , this design ensures
the screw is not backing out after installed , the angle of threads
is 60 degrees or 55 degrees .
Thread forming screw needs a pre-drilling hole as it is machine
thread style , screw will cut a hole with same threads as it is
when thread forming screw is been rotating into hole ; Do not need
a nut to secure the screw to avoid screw back out ; it is very
convenient and cost-efficient .
We offer standard thread forming screw from M3 to M8 and we are
available for customization
| d1 | 2.5 | 3 | 4 | 5 | 6 | 8 |
| d2 | | | 8.9 | 10.5 | 13 | 17 |
| K max | | | 4.23 | 5.25 | 6.25 | 8.35 |
| c max | | | 0.65 | 0.8 | 1.05 | 1.35 |
| S | | | 7 | 8 | 10 | 13 |
| L | |
| 5 | ◆ | | | | | |
| 6 | ◆ | ◆ | | | | |
| 8 | ◆ | ◆ | ◆ | | | |
| 10 | ◆ | ◆ | ◆ | ◆ | | |
| 12 | ◆ | ◆ | ◆ | ◆ | | |
| 16 | | ◆ | ◆ | ◆ | ◆ | ◆ |
| 18 | | ◆ | ◆ | ◆ | ◆ | ◆ |
| 20 | | ◆ | ◆ | ◆ | ◆ | ◆ |
| 25 | | ◆ | ◆ | ◆ | ◆ | ◆ |
| 30 | | | ◆ | ◆ | ◆ | ◆ |
Physical Performance
| Specification | Material | Case hardness | Core hardness | Torsion Kg/cm |
| M3 | ANSI1022 | 450 HV Min | 270 HV Min | 15 |
| M4 | ANSI1022 | 450 HV Min | 270 HV Min | 34 |
| M5 | ANSI1022 | 450 HV Min | 270 HV Min | 72 |
| M6 | ANSI1022 | 450 HV Min | 270 HV Min | 122 |
| M8 | ANSI1022 | 450 HV Min | 270 HV Min | 295 |
| M10 | ANSI1022 | 450 HV Min | 270 HV Min | 601 |
Finish
| Finish | Colors | Thickness | Charicteristic |
| Zinc | Blue ,White ,Black ,Yellow | 5-107μm | Bright and smooth surface ,corrosion resistance |
| Nickel | Silver | 1～3μm | Wear resistance ,bright appearance , anti-corrosion |
| Polishing | Silver | 0.01mm ( reference ) | Improving brightness of surface |
| Tin | Silver | 0.13～1.27μm | Good ductility ,corrosion resistance ,lower melting point
,eco-friendly ,brightness |
| Brass | Copper | 5gm～8gm | Good dispersibility ,Bright appearance |
| Dacromet | Grey | 4-8μm | High corrosion resistance , No hydrogen embrittlement ,Heat
resistance ,Easy to plated more ,eco-friendly |
| Chrome | Silver white | 0．25～0．5μm | Harden surface ,Bright surface ,Heat resistance ,Wear resistance
Corrosion resistance and eco-friendly
|
FAQs
Q What materials for thread forming screws ?
A Carbon steel , stainless steel ,alloy steel
Q What sizes offer ?
A We provide M12 thread diameter and max length is up to 100mm
Q Do you have stock for sizes ?
A Usually , we have small stock for standard thread forming screws
.
Q How many days for delivery ?
A We can deliver goods in one week for QTY over 100 000 pcs .
Q If I need samples , can you provide ?
A We are provide samples free for stock .
