Dimensional data for M3 Clip-On Nuts (Sheet Metal Speed Nuts) to Trade series (U-clip speed nut), with the drive and the installation notes for this type.
Values are taken from the governing standard rather than from a general machine-thread table, because this type is not selected on one.
M3 Dimensional Row (Trade series (U-clip speed nut))
| Thread size | Panel thickness (mm) | Clip length (mm) | Clip width (mm) | Hole centre from edge (mm) | Panel hole (mm) | Material | Finish |
|---|---|---|---|---|---|---|---|
| M3 | 0.7~1.6 | 14 | 10 | 6.5 | 4.5 | Spring steel | Zinc plated |
Spanner & Drive for M3 Clip-On Nuts (Sheet Metal Speed Nuts)
Drive geometry for M3 Clip-On Nuts (Sheet Metal Speed Nuts) is given by the row above; match the tool to the listed values.
Tightening Torque for M3
| Class 8.8 (dry, ~µ 0.125) | ≈ 1.3 Nm |
|---|---|
| Class 10.9 (dry, ~µ 0.125) | ≈ Nm |
| Class 12.9 (dry, ~µ 0.125) | ≈ 2.2 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.
Proof Load & Strength for M3
Nuts are graded to ISO 898-2 by the proof load the nut itself will hold (classes 04, 05, 5, 6, 8, 10 and 12), not by the 8.8 / 10.9 / 12.9 scale used for bolts. A class-8 nut is the correct mate for a class-8.8 bolt, and the joint is designed on the bolt, so no bolt-tension figure is quoted here.
Installation Tips for M3 Clip-On Nuts (Sheet Metal Speed Nuts)
- At M3 the joint is sensitive to over-torque — use a torque-limiting driver and check the head doesn't bury into a softer counterpart.
Mating Parts for M3
Pair M3 with the matching M3 bolt or screw, plus a M3 flat washer where required to distribute load on softer materials.
Custom manufacturing · Made to drawing
Need clip-on nuts (sheet metal speed nuts) in a size this table does not list?
This page covers M3 clip-on nuts (sheet metal speed nuts). Height and across-flats are the two most often changed — a thinner nut for clearance, a larger hex for a tool that is already on the line. Made by cold heading or tapping.
Minimum order from 2,000 pieces; samples within 7 days of drawing approval.
