ST2.2 × 16 × 0.8 × 1.3 × 0.8 × 4 × 3.7 × 1.1 × 0.7 × 0.56 × 0.5 × 0.1 × 2 × 1.6 × 15.2 × 16.8
dNominal Diameter (mm)ST2.2
lLength (mm)16
PThread Pitch (mm)0.8
kNominal Head Height (mm)1.3
aThread Runout (max) (mm)0.8
dkHead Diameter (mm)4
MOQ3000
Slotted Pan Head Tapping Screw
ISO 1481 (Current)
- Material
- Stainless Steel, Carbon Steel
- Finish
- Passivated, Plain, Zinc Plated, Dacromet
- Size range
- ST2.2, ST2.9, ST3.5 + 6 more
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Select sizes and quantities — 29 confirmed sizes to ISO 1481
Material
Finish
| dNominal Diameter (mm) | lLength (mm) | PThread Pitch (mm) | kNominal Head Height (mm) | aThread Runout (max) (mm) | dkHead Diameter (mm) | MOQ | Quantity and inquiry |
|---|---|---|---|---|---|---|---|
| ST2.2 | 16 | 0.8 | 1.3 | 0.8 | 4 | 3000 | |
| ST2.2 | 25 | 0.8 | 1.3 | 0.8 | 4 | 3000 | |
| ST2.9 | 16 | 1.1 | 1.8 | 1.1 | 5.6 | 3000 | |
| ST2.9 | 25 | 1.1 | 1.8 | 1.1 | 5.6 | 3000 | |
| ST3.5 | 16 | 1.3 | 2.1 | 1.3 | 7 | 3000 | |
| ST3.5 | 25 | 1.3 | 2.1 | 1.3 | 7 | 3000 | |
| ST4.2 | 16 | 1.4 | 2.4 | 1.4 | 8 | 3000 | |
| ST4.2 | 25 | 1.4 | 2.4 | 1.4 | 8 | 3000 | |
| ST4.2 | 45 | 1.4 | 2.4 | 1.4 | 8 | 3000 | |
| ST4.8 | 16 | 1.6 | 3 | 1.6 | 9.5 | 3000 | |
| ST4.8 | 25 | 1.6 | 3 | 1.6 | 9.5 | 3000 | |
| ST4.8 | 45 | 1.6 | 3 | 1.6 | 9.5 | 3000 | |
| ST4.8 | 50 | 1.6 | 3 | 1.6 | 9.5 | 3000 | |
| ST5.5 | 16 | 1.8 | 3.2 | 1.8 | 11 | 3000 | |
| ST5.5 | 25 | 1.8 | 3.2 | 1.8 | 11 | 3000 | |
| ST5.5 | 45 | 1.8 | 3.2 | 1.8 | 11 | 3000 |
Showing 16 of 29 sizes
ST2.2 × 25 × 0.8 × 1.3 × 0.8 × 4 × 3.7 × 1.1 × 0.7 × 0.56 × 0.5 × 0.1 × 2 × 1.6 × 24.2 × 25.8
dNominal Diameter (mm)ST2.2
lLength (mm)25
PThread Pitch (mm)0.8
kNominal Head Height (mm)1.3
aThread Runout (max) (mm)0.8
dkHead Diameter (mm)4
MOQ3000
ST2.9 × 16 × 1.1 × 1.8 × 1.1 × 5.6 × 5.3 × 1.6 × 1 × 0.86 × 0.7 × 0.1 × 2.6 × 2.1 × 15.2 × 16.8
dNominal Diameter (mm)ST2.9
lLength (mm)16
PThread Pitch (mm)1.1
kNominal Head Height (mm)1.8
aThread Runout (max) (mm)1.1
dkHead Diameter (mm)5.6
MOQ3000
ST2.9 × 25 × 1.1 × 1.8 × 1.1 × 5.6 × 5.3 × 1.6 × 1 × 0.86 × 0.7 × 0.1 × 2.6 × 2.1 × 24.2 × 25.8
dNominal Diameter (mm)ST2.9
lLength (mm)25
PThread Pitch (mm)1.1
kNominal Head Height (mm)1.8
aThread Runout (max) (mm)1.1
dkHead Diameter (mm)5.6
MOQ3000
ST3.5 × 16 × 1.3 × 2.1 × 1.3 × 7 × 6.6 × 1.9 × 1.2 × 1.06 × 0.8 × 0.1 × 3.2 × 2.5 × 15.2 × 16.8 × 2.7
dNominal Diameter (mm)ST3.5
lLength (mm)16
PThread Pitch (mm)1.3
kNominal Head Height (mm)2.1
aThread Runout (max) (mm)1.3
dkHead Diameter (mm)7
MOQ3000
ST3.5 × 25 × 1.3 × 2.1 × 1.3 × 7 × 6.6 × 1.9 × 1.2 × 1.06 × 0.8 × 0.1 × 3.2 × 2.5 × 24.2 × 25.8 × 2.7
dNominal Diameter (mm)ST3.5
lLength (mm)25
PThread Pitch (mm)1.3
kNominal Head Height (mm)2.1
aThread Runout (max) (mm)1.3
dkHead Diameter (mm)7
MOQ3000
ST4.2 × 16 × 1.4 × 2.4 × 1.4 × 8 × 7.6 × 2.2 × 1.51 × 1.26 × 1 × 0.2 × 3.7 × 2.8 × 15.2 × 16.8 × 3.2
dNominal Diameter (mm)ST4.2
lLength (mm)16
PThread Pitch (mm)1.4
kNominal Head Height (mm)2.4
aThread Runout (max) (mm)1.4
dkHead Diameter (mm)8
MOQ3000
ST4.2 × 25 × 1.4 × 2.4 × 1.4 × 8 × 7.6 × 2.2 × 1.51 × 1.26 × 1 × 0.2 × 3.7 × 2.8 × 24.2 × 25.8 × 3.2
dNominal Diameter (mm)ST4.2
lLength (mm)25
PThread Pitch (mm)1.4
kNominal Head Height (mm)2.4
aThread Runout (max) (mm)1.4
dkHead Diameter (mm)8
MOQ3000
ST4.2 × 45 × 1.4 × 2.4 × 1.4 × 8 × 7.6 × 2.2 × 1.51 × 1.26 × 1 × 0.2 × 3.7 × 2.8 × 43.7 × 46.3 × 3.2
dNominal Diameter (mm)ST4.2
lLength (mm)45
PThread Pitch (mm)1.4
kNominal Head Height (mm)2.4
aThread Runout (max) (mm)1.4
dkHead Diameter (mm)8
MOQ3000
ST4.8 × 16 × 1.6 × 3 × 1.6 × 9.5 × 9.1 × 2.7 × 1.51 × 1.26 × 1.2 × 0.2 × 4.3 × 3.2 × 15.2 × 16.8 × 3.6
dNominal Diameter (mm)ST4.8
lLength (mm)16
PThread Pitch (mm)1.6
kNominal Head Height (mm)3
aThread Runout (max) (mm)1.6
dkHead Diameter (mm)9.5
MOQ3000
ST4.8 × 25 × 1.6 × 3 × 1.6 × 9.5 × 9.1 × 2.7 × 1.51 × 1.26 × 1.2 × 0.2 × 4.3 × 3.2 × 24.2 × 25.8 × 3.6
dNominal Diameter (mm)ST4.8
lLength (mm)25
PThread Pitch (mm)1.6
kNominal Head Height (mm)3
aThread Runout (max) (mm)1.6
dkHead Diameter (mm)9.5
MOQ3000
ST4.8 × 45 × 1.6 × 3 × 1.6 × 9.5 × 9.1 × 2.7 × 1.51 × 1.26 × 1.2 × 0.2 × 4.3 × 3.2 × 43.7 × 46.3 × 3.6
dNominal Diameter (mm)ST4.8
lLength (mm)45
PThread Pitch (mm)1.6
kNominal Head Height (mm)3
aThread Runout (max) (mm)1.6
dkHead Diameter (mm)9.5
MOQ3000
ST4.8 × 50 × 1.6 × 3 × 1.6 × 9.5 × 9.1 × 2.7 × 1.51 × 1.26 × 1.2 × 0.2 × 4.3 × 3.2 × 48.7 × 51.3 × 3.6
dNominal Diameter (mm)ST4.8
lLength (mm)50
PThread Pitch (mm)1.6
kNominal Head Height (mm)3
aThread Runout (max) (mm)1.6
dkHead Diameter (mm)9.5
MOQ3000
ST5.5 × 16 × 1.8 × 3.2 × 1.8 × 11 × 10.6 × 2.9 × 1.91 × 1.66 × 1.3 × 0.25 × 5 × 3.6 × 15.2 × 16.8 × 4.3
dNominal Diameter (mm)ST5.5
lLength (mm)16
PThread Pitch (mm)1.8
kNominal Head Height (mm)3.2
aThread Runout (max) (mm)1.8
dkHead Diameter (mm)11
MOQ3000
ST5.5 × 25 × 1.8 × 3.2 × 1.8 × 11 × 10.6 × 2.9 × 1.91 × 1.66 × 1.3 × 0.25 × 5 × 3.6 × 24.2 × 25.8 × 4.3
dNominal Diameter (mm)ST5.5
lLength (mm)25
PThread Pitch (mm)1.8
kNominal Head Height (mm)3.2
aThread Runout (max) (mm)1.8
dkHead Diameter (mm)11
MOQ3000
ST5.5 × 45 × 1.8 × 3.2 × 1.8 × 11 × 10.6 × 2.9 × 1.91 × 1.66 × 1.3 × 0.25 × 5 × 3.6 × 43.7 × 46.3 × 4.3
dNominal Diameter (mm)ST5.5
lLength (mm)45
PThread Pitch (mm)1.8
kNominal Head Height (mm)3.2
aThread Runout (max) (mm)1.8
dkHead Diameter (mm)11
MOQ3000
Product details
- Description
- Slotted pan head tapping screw with a self-tapping thread. The pan head provides a low profile with a flat bearing surface, and the slotted drive accepts a standard flat-blade screwdriver. Thread dimensions follow ISO 1481 for ST2.2 and ST2.9 diameters, with lengths from 16 mm to 50 mm. Supply materials are stainless steel and carbon steel, with finishes of passivated, plain, zinc plated, or Dacromet. When requesting a quotation, specify diameter, length, material, and finish.
- Features
- Pan head with flat bearing surface · Slotted drive for flat-blade screwdriver · Self-tapping thread per ISO 1481 · Available in stainless steel and carbon steel with four finishes
- Applications
- Sheet metal assembly, Enclosure and cabinet fixing, HVAC ducting and light fabrication
Order assurance
Confirmed for the quoted product and order.Reports & inspection
Agreed in the quotation.
- EN 10204 3.1 material certificate
- Dimensional inspection report
- Certificate of conformity
- Mechanical test report
- Chemical analysis report
- Coating inspection report
- Batch and lot traceability
Packaging & delivery
Options we supply.
- Bulk carton packing
- Small boxes with outer cartons
- Palletized shipment
- Fumigation-free pallets
- Inner poly bags
- Buyer branding and labels
Product questions
What sizes of Slotted Pan Head Tapping Screw do you supply?
Execution standard: ISO 1481. The confirmed specification table covers 2.2–9.5 diameters and 16–50 lengths. Use the specification table to select the exact variant required for quotation.
Which materials, grades and finishes can I order?
Material: Stainless Steel, Carbon Steel; Finish: Passivated, Plain, Zinc Plated, Dacromet. Availability should be confirmed against the selected specification and order quantity.
Where are these self-tapping screws typically used?
Typical applications include Sheet metal assembly, Enclosure and cabinet fixing, HVAC ducting and light fabrication. Final suitability depends on the selected material, grade, finish and operating conditions.
