Dimensional data for M4 Thumb Screws, Flat Spade Head to Trade series (spade-head hand screw), with 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.
M4 Dimensional Row (Trade series (spade-head hand screw))
| Thread size | Pitch (mm) | Blade width dk (mm) | Blade height k (mm) | Blade thickness (mm) | Common length range (mm) | Material | Finish |
|---|---|---|---|---|---|---|---|
| M4 | 0.7 | 12 | 10 | 2.5 | 8~25 | Steel / A2 | Zinc / plain |
Hole Sizes for M4
| Coarse-thread pitch (ISO 724) | 0.7 mm |
|---|---|
| Through-hole / clearance (ISO 273 medium) | 4.5 mm |
| Tapping drill, coarse thread | 3.3 mm |
Mating Parts for M4
For M4, pair with a M4 hex nut (ISO 4032 / DIN 934) and, where used, a M4 flat washer (ISO 7089 / DIN 125A) under the head and under the nut.
Custom manufacturing · Made to drawing
Need thumb screws, flat spade head in a size this table does not list?
This page covers M4 thumb screws, flat spade head. Dimensions, material, finish and form are specified from the drawing — a screw outside the standard range is a variation on existing tooling rather than a new design. Made by cold heading or warm forging.
Minimum order from 2,000 pieces; samples within 7 days of drawing approval.
