Hex Flange Self-Drilling Screw with Aluminium EPDM Bonded Washer

ISO 15480 (Current)

Material: Stainless Steel, Carbon Steel
Finish: Passivated, Plain, Zinc Plated, Dacromet and more
Size range: ST4.8, ST5.5, ST6.3

Select sizes and quantities — 24 confirmed sizes to ISO 15480

Material

Finish

Find a size

dNominal Diameter (mm)	lLength (mm)	tDrilling Capacity (min) (mm)	tDrilling Capacity (max) (mm)	PThread Pitch (mm)	aThread Runout (max) (mm)	MOQ
ST5.5	50	1.75	5.25	1.8	1.8	1000
ST6.3	19	2	6	1.8	1.8	1000
ST6.3	22	2	6	1.8	1.8	1000
ST6.3	25	2	6	1.8	1.8	1000
ST6.3	32	2	6	1.8	1.8	1000
ST6.3	38	2	6	1.8	1.8	1000
ST6.3	45	2	6	1.8	1.8	1000
ST6.3	50	2	6	1.8	1.8	1000

Showing 8 of 24 sizes

ST5.5 × 50 × 1.75 × 5.25 × 1.8 × 1.8 × 1 × 6.3 × 11 × 10 × 8.71 × 5.4 × 4.8 × 2.7 × 0.25 × 0.4 × 8 × 7.78 × 39

dNominal Diameter (mm)ST5.5

lLength (mm)50

tDrilling Capacity (min) (mm)1.75

tDrilling Capacity (max) (mm)5.25

PThread Pitch (mm)1.8

aThread Runout (max) (mm)1.8

MOQ1000

ST6.3 × 19 × 2 × 6 × 1.8 × 1.8 × 1 × 7.3 × 13.5 × 12.2 × 10.95 × 5.9 × 5.3 × 3.1 × 0.25 × 0.5 × 10 × 9.78 × 7

dNominal Diameter (mm)ST6.3

lLength (mm)19

tDrilling Capacity (min) (mm)2

tDrilling Capacity (max) (mm)6

PThread Pitch (mm)1.8

aThread Runout (max) (mm)1.8

MOQ1000

ST6.3 × 22 × 2 × 6 × 1.8 × 1.8 × 1 × 7.3 × 13.5 × 12.2 × 10.95 × 5.9 × 5.3 × 3.1 × 0.25 × 0.5 × 10 × 9.78 × 10

dNominal Diameter (mm)ST6.3

lLength (mm)22

tDrilling Capacity (min) (mm)2

tDrilling Capacity (max) (mm)6

PThread Pitch (mm)1.8

aThread Runout (max) (mm)1.8

MOQ1000

ST6.3 × 25 × 2 × 6 × 1.8 × 1.8 × 1 × 7.3 × 13.5 × 12.2 × 10.95 × 5.9 × 5.3 × 3.1 × 0.25 × 0.5 × 10 × 9.78 × 13

dNominal Diameter (mm)ST6.3

lLength (mm)25

tDrilling Capacity (min) (mm)2

tDrilling Capacity (max) (mm)6

PThread Pitch (mm)1.8

aThread Runout (max) (mm)1.8

MOQ1000

ST6.3 × 32 × 2 × 6 × 1.8 × 1.8 × 1 × 7.3 × 13.5 × 12.2 × 10.95 × 5.9 × 5.3 × 3.1 × 0.25 × 0.5 × 10 × 9.78 × 20

dNominal Diameter (mm)ST6.3

lLength (mm)32

tDrilling Capacity (min) (mm)2

tDrilling Capacity (max) (mm)6

PThread Pitch (mm)1.8

aThread Runout (max) (mm)1.8

MOQ1000

ST6.3 × 38 × 2 × 6 × 1.8 × 1.8 × 1 × 7.3 × 13.5 × 12.2 × 10.95 × 5.9 × 5.3 × 3.1 × 0.25 × 0.5 × 10 × 9.78 × 26

dNominal Diameter (mm)ST6.3

lLength (mm)38

tDrilling Capacity (min) (mm)2

tDrilling Capacity (max) (mm)6

PThread Pitch (mm)1.8

aThread Runout (max) (mm)1.8

MOQ1000

ST6.3 × 45 × 2 × 6 × 1.8 × 1.8 × 1 × 7.3 × 13.5 × 12.2 × 10.95 × 5.9 × 5.3 × 3.1 × 0.25 × 0.5 × 10 × 9.78 × 33

dNominal Diameter (mm)ST6.3

lLength (mm)45

tDrilling Capacity (min) (mm)2

tDrilling Capacity (max) (mm)6

PThread Pitch (mm)1.8

aThread Runout (max) (mm)1.8

MOQ1000

ST6.3 × 50 × 2 × 6 × 1.8 × 1.8 × 1 × 7.3 × 13.5 × 12.2 × 10.95 × 5.9 × 5.3 × 3.1 × 0.25 × 0.5 × 10 × 9.78 × 38

dNominal Diameter (mm)ST6.3

lLength (mm)50

tDrilling Capacity (min) (mm)2

tDrilling Capacity (max) (mm)6

PThread Pitch (mm)1.8

aThread Runout (max) (mm)1.8

MOQ1000

Product details

Description: This hex flange self-drilling screw features a bonded aluminium EPDM washer and is supplied to ISO 15480. The hex washer head provides a wide bearing surface, and the self-drilling point eliminates the need for pre-drilling in light-gauge steel. Available in ST4.8, ST5.5, and ST6.3 diameters with lengths from 13 mm to 50 mm. Material options include carbon steel and stainless steel, with finishes such as zinc plated, Dacromet, Ruspert, phosphate, plain, or passivated. When requesting a quotation, specify the diameter, length, material, finish, and required quantity.
Features: Hex washer head with bonded aluminium EPDM washer · Self-drilling point for direct installation into light-gauge steel · Available in ST4.8, ST5.5, and ST6.3 diameters · Supplied in carbon steel or stainless steel with multiple finish options
Applications: Metal roofing and wall cladding, Steel purlin and light gauge steel framing, HVAC ducting

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 ISO 15480 self-drilling screws do you supply?

Execution standard: ISO 15480. The confirmed specification table covers 4.8–6.3 diameters and 13–50 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, Ruspert, Phosphate. Availability should be confirmed against the selected specification and order quantity.

Where are these self-drilling screws typically used?

Typical applications include Metal roofing and wall cladding, Steel purlin and light gauge steel framing, HVAC ducting. Final suitability depends on the selected material, grade, finish and operating conditions.

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Hex Flange Self-Drilling Screw with Aluminium EPDM Bonded Washer

Select sizes and quantities — 24 confirmed sizes to ISO 15480

ST5.5 × 50 × 1.75 × 5.25 × 1.8 × 1.8 × 1 × 6.3 × 11 × 10 × 8.71 × 5.4 × 4.8 × 2.7 × 0.25 × 0.4 × 8 × 7.78 × 39

ST6.3 × 19 × 2 × 6 × 1.8 × 1.8 × 1 × 7.3 × 13.5 × 12.2 × 10.95 × 5.9 × 5.3 × 3.1 × 0.25 × 0.5 × 10 × 9.78 × 7

ST6.3 × 22 × 2 × 6 × 1.8 × 1.8 × 1 × 7.3 × 13.5 × 12.2 × 10.95 × 5.9 × 5.3 × 3.1 × 0.25 × 0.5 × 10 × 9.78 × 10

ST6.3 × 25 × 2 × 6 × 1.8 × 1.8 × 1 × 7.3 × 13.5 × 12.2 × 10.95 × 5.9 × 5.3 × 3.1 × 0.25 × 0.5 × 10 × 9.78 × 13

ST6.3 × 32 × 2 × 6 × 1.8 × 1.8 × 1 × 7.3 × 13.5 × 12.2 × 10.95 × 5.9 × 5.3 × 3.1 × 0.25 × 0.5 × 10 × 9.78 × 20

ST6.3 × 38 × 2 × 6 × 1.8 × 1.8 × 1 × 7.3 × 13.5 × 12.2 × 10.95 × 5.9 × 5.3 × 3.1 × 0.25 × 0.5 × 10 × 9.78 × 26

ST6.3 × 45 × 2 × 6 × 1.8 × 1.8 × 1 × 7.3 × 13.5 × 12.2 × 10.95 × 5.9 × 5.3 × 3.1 × 0.25 × 0.5 × 10 × 9.78 × 33

ST6.3 × 50 × 2 × 6 × 1.8 × 1.8 × 1 × 7.3 × 13.5 × 12.2 × 10.95 × 5.9 × 5.3 × 3.1 × 0.25 × 0.5 × 10 × 9.78 × 38

Product details

Order assurance

Reports & inspection

Packaging & delivery

Product questions

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