The specification recipe
Write your RFQ as:
Metric SHCS · [Thread] × [Length mm] · [Drive] · [Material/Class] · [Standard]
Example:
Metric SHCS · M6 × 20 · Hex socket · A2-70 / 304 · DIN 912 / ISO 4762
Field guide
| Field | Example | Notes |
|---|---|---|
| Thread | M6 | Diameter in mm |
| Length | 20 | Under-head length |
| Drive | Hex socket | Allen / hex key |
| Material | 304 / A2-70 | Match drawing |
| Standard | DIN 912 / ISO 4762 | Prefer one primary callout |
Using the FASTENLAB catalog
- Type the recipe into the homepage search
- Filter thread → length on
/catalog - Open the SKU page for engineering dimensions
- Download PDF/CAD and add tier quantity to cart
FAQ
Q: Is length overall or under head?
A: Catalog length is the standard under-head length for SHCS.
Q: What if I need a custom length?
A: Use custom MOQ / lead-time fields or email sales with the drawing.