The M8 size of Thumb Screws, Flat Spade Head is dimensioned by Trade series (spade-head hand screw). The table below gives the dimensional row from the standard, followed by 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.
M8 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 |
|---|---|---|---|---|---|---|---|
| M8 | 1.25 | 22 | 17 | 4.0 | 12~50 | Steel | Zinc |
Hole Sizes for M8
| Coarse-thread pitch (ISO 724) | 1.25 mm |
|---|---|
| Through-hole / clearance (ISO 273 medium) | 9 mm |
| Tapping drill, coarse thread | 6.75 mm |
Mating Parts for M8
For M8, pair with a M8 hex nut (ISO 4032 / DIN 934) and, where used, a M8 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 M8 thumb screws, flat spade head. A non-standard screw is quoted from the drawing; where one already exists in the catalog, the special is usually a variation on its tooling. Made by cold heading or warm forging.
Minimum order from 2,000 pieces; samples within 7 days of drawing approval.
