Hex Washer Head Tapping Screw

ISO 7053 (Current)

Material: Stainless Steel, Carbon Steel
Finish: Passivated, Plain, Zinc Plated, Dacromet and more
Size range: ST2.2, ST2.9, ST3.5 + 6 more

TDSHex Washer Head Tapping Screw ISO 7053 - ISO 7053Download PDF

Select sizes and quantities — 59 confirmed sizes to ISO 7053

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dNominal Diameter (mm)	lLength (mm)	PThread Pitch (mm)	sWidth Across Flats (max) (mm)	eWidth Across Corners (min) (mm)	kNominal Head Height (mm)	MOQ
ST2.2	4.5	0.8	3	3.2	2	3000
ST2.2	6.5	0.8	3	3.2	2	3000
ST2.2	9.5	0.8	3	3.2	2	3000
ST2.2	13	0.8	3	3.2	2	3000
ST2.2	16	0.8	3	3.2	2	3000
ST2.2	19	0.8	3	3.2	2	3000
ST2.9	6.5	1.1	4	4.28	2.8	3000
ST2.9	9.5	1.1	4	4.28	2.8	3000
ST2.9	13	1.1	4	4.28	2.8	3000
ST2.9	16	1.1	4	4.28	2.8	3000
ST2.9	19	1.1	4	4.28	2.8	3000
ST3.5	9.5	1.3	5.5	5.96	3.4	3000
ST3.5	13	1.3	5.5	5.96	3.4	3000
ST3.5	16	1.3	5.5	5.96	3.4	3000
ST3.5	19	1.3	5.5	5.96	3.4	3000
ST3.5	22	1.3	5.5	5.96	3.4	3000

Showing 16 of 59 sizes

ST2.2 × 4.5 × 0.8 × 3 × 3.2 × 2 × 0.8 × 0.25 × 2.8 × 4.2 × 3.8 × 1.7 × 0.9 × 0.1 × 0.15 × 2.86 × 2 × 1.6 × 3.7 × 5.3

dNominal Diameter (mm)ST2.2

lLength (mm)4.5

PThread Pitch (mm)0.8

sWidth Across Flats (max) (mm)3

eWidth Across Corners (min) (mm)3.2

kNominal Head Height (mm)2

MOQ3000

ST2.2 × 6.5 × 0.8 × 3 × 3.2 × 2 × 0.8 × 0.25 × 2.8 × 4.2 × 3.8 × 1.7 × 0.9 × 0.1 × 0.15 × 2.86 × 2 × 1.6 × 5.7 × 7.3

dNominal Diameter (mm)ST2.2

lLength (mm)6.5

PThread Pitch (mm)0.8

sWidth Across Flats (max) (mm)3

eWidth Across Corners (min) (mm)3.2

kNominal Head Height (mm)2

MOQ3000

ST2.2 × 9.5 × 0.8 × 3 × 3.2 × 2 × 0.8 × 0.25 × 2.8 × 4.2 × 3.8 × 1.7 × 0.9 × 0.1 × 0.15 × 2.86 × 2 × 1.6 × 8.7 × 10.3

dNominal Diameter (mm)ST2.2

lLength (mm)9.5

PThread Pitch (mm)0.8

sWidth Across Flats (max) (mm)3

eWidth Across Corners (min) (mm)3.2

kNominal Head Height (mm)2

MOQ3000

ST2.2 × 13 × 0.8 × 3 × 3.2 × 2 × 0.8 × 0.25 × 2.8 × 4.2 × 3.8 × 1.7 × 0.9 × 0.1 × 0.15 × 2.86 × 2 × 1.6 × 12.2 × 13.8

dNominal Diameter (mm)ST2.2

lLength (mm)13

PThread Pitch (mm)0.8

sWidth Across Flats (max) (mm)3

eWidth Across Corners (min) (mm)3.2

kNominal Head Height (mm)2

MOQ3000

ST2.2 × 16 × 0.8 × 3 × 3.2 × 2 × 0.8 × 0.25 × 2.8 × 4.2 × 3.8 × 1.7 × 0.9 × 0.1 × 0.15 × 2.86 × 2 × 1.6 × 15.2 × 16.8

dNominal Diameter (mm)ST2.2

lLength (mm)16

PThread Pitch (mm)0.8

sWidth Across Flats (max) (mm)3

eWidth Across Corners (min) (mm)3.2

kNominal Head Height (mm)2

MOQ3000

ST2.2 × 19 × 0.8 × 3 × 3.2 × 2 × 0.8 × 0.25 × 2.8 × 4.2 × 3.8 × 1.7 × 0.9 × 0.1 × 0.15 × 2.86 × 2 × 1.6 × 18.2 × 19.8

dNominal Diameter (mm)ST2.2

lLength (mm)19

PThread Pitch (mm)0.8

sWidth Across Flats (max) (mm)3

eWidth Across Corners (min) (mm)3.2

kNominal Head Height (mm)2

MOQ3000

ST2.9 × 6.5 × 1.1 × 4 × 4.28 × 2.8 × 1.1 × 0.4 × 3.5 × 6.3 × 5.8 × 2.5 × 1.3 × 0.1 × 0.2 × 3.82 × 2.6 × 2.1 × 5.7 × 7.3

dNominal Diameter (mm)ST2.9

lLength (mm)6.5

PThread Pitch (mm)1.1

sWidth Across Flats (max) (mm)4

eWidth Across Corners (min) (mm)4.28

kNominal Head Height (mm)2.8

MOQ3000

ST2.9 × 9.5 × 1.1 × 4 × 4.28 × 2.8 × 1.1 × 0.4 × 3.5 × 6.3 × 5.8 × 2.5 × 1.3 × 0.1 × 0.2 × 3.82 × 2.6 × 2.1 × 8.7 × 10.3

dNominal Diameter (mm)ST2.9

lLength (mm)9.5

PThread Pitch (mm)1.1

sWidth Across Flats (max) (mm)4

eWidth Across Corners (min) (mm)4.28

kNominal Head Height (mm)2.8

MOQ3000

ST2.9 × 13 × 1.1 × 4 × 4.28 × 2.8 × 1.1 × 0.4 × 3.5 × 6.3 × 5.8 × 2.5 × 1.3 × 0.1 × 0.2 × 3.82 × 2.6 × 2.1 × 12.2 × 13.8

dNominal Diameter (mm)ST2.9

lLength (mm)13

PThread Pitch (mm)1.1

sWidth Across Flats (max) (mm)4

eWidth Across Corners (min) (mm)4.28

kNominal Head Height (mm)2.8

MOQ3000

ST2.9 × 16 × 1.1 × 4 × 4.28 × 2.8 × 1.1 × 0.4 × 3.5 × 6.3 × 5.8 × 2.5 × 1.3 × 0.1 × 0.2 × 3.82 × 2.6 × 2.1 × 15.2 × 16.8

dNominal Diameter (mm)ST2.9

lLength (mm)16

PThread Pitch (mm)1.1

sWidth Across Flats (max) (mm)4

eWidth Across Corners (min) (mm)4.28

kNominal Head Height (mm)2.8

MOQ3000

ST2.9 × 19 × 1.1 × 4 × 4.28 × 2.8 × 1.1 × 0.4 × 3.5 × 6.3 × 5.8 × 2.5 × 1.3 × 0.1 × 0.2 × 3.82 × 2.6 × 2.1 × 18.2 × 19.8

dNominal Diameter (mm)ST2.9

lLength (mm)19

PThread Pitch (mm)1.1

sWidth Across Flats (max) (mm)4

eWidth Across Corners (min) (mm)4.28

kNominal Head Height (mm)2.8

MOQ3000

ST3.5 × 9.5 × 1.3 × 5.5 × 5.96 × 3.4 × 1.3 × 0.6 × 4.1 × 8.3 × 7.6 × 3 × 1.5 × 0.1 × 0.25 × 5.32 × 3.2 × 2.5 × 8.7 × 10.3 × 2.7

dNominal Diameter (mm)ST3.5

lLength (mm)9.5

PThread Pitch (mm)1.3

sWidth Across Flats (max) (mm)5.5

eWidth Across Corners (min) (mm)5.96

kNominal Head Height (mm)3.4

MOQ3000

ST3.5 × 13 × 1.3 × 5.5 × 5.96 × 3.4 × 1.3 × 0.6 × 4.1 × 8.3 × 7.6 × 3 × 1.5 × 0.1 × 0.25 × 5.32 × 3.2 × 2.5 × 12.2 × 13.8 × 2.7

dNominal Diameter (mm)ST3.5

lLength (mm)13

PThread Pitch (mm)1.3

sWidth Across Flats (max) (mm)5.5

eWidth Across Corners (min) (mm)5.96

kNominal Head Height (mm)3.4

MOQ3000

ST3.5 × 16 × 1.3 × 5.5 × 5.96 × 3.4 × 1.3 × 0.6 × 4.1 × 8.3 × 7.6 × 3 × 1.5 × 0.1 × 0.25 × 5.32 × 3.2 × 2.5 × 15.2 × 16.8 × 2.7

dNominal Diameter (mm)ST3.5

lLength (mm)16

PThread Pitch (mm)1.3

sWidth Across Flats (max) (mm)5.5

eWidth Across Corners (min) (mm)5.96

kNominal Head Height (mm)3.4

MOQ3000

ST3.5 × 19 × 1.3 × 5.5 × 5.96 × 3.4 × 1.3 × 0.6 × 4.1 × 8.3 × 7.6 × 3 × 1.5 × 0.1 × 0.25 × 5.32 × 3.2 × 2.5 × 18.2 × 19.8 × 2.7

dNominal Diameter (mm)ST3.5

lLength (mm)19

PThread Pitch (mm)1.3

sWidth Across Flats (max) (mm)5.5

eWidth Across Corners (min) (mm)5.96

kNominal Head Height (mm)3.4

MOQ3000

ST3.5 × 22 × 1.3 × 5.5 × 5.96 × 3.4 × 1.3 × 0.6 × 4.1 × 8.3 × 7.6 × 3 × 1.5 × 0.1 × 0.25 × 5.32 × 3.2 × 2.5 × 21.2 × 22.8 × 2.7

dNominal Diameter (mm)ST3.5

lLength (mm)22

PThread Pitch (mm)1.3

sWidth Across Flats (max) (mm)5.5

eWidth Across Corners (min) (mm)5.96

kNominal Head Height (mm)3.4

MOQ3000

Product details

Description: This is a hex washer head tapping screw manufactured to ISO 7053. The screw features a hexagon drive and a self-tapping thread, with a washer face under the head for increased bearing surface. It is supplied in carbon steel or stainless steel, with finishes including zinc plated, Dacromet, Ruspert, passivated, or plain. Diameters range from ST2.2 to ST8. When requesting a quotation, specify the diameter, length, material, and finish required.
Features: Hex washer head with integrated flange · Hexagon drive for use with standard spanners and sockets · Self-tapping thread for forming its own mating thread in pre-drilled holes · Available in diameters ST2.2 to ST8, in carbon steel or stainless steel
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 Hex Washer Head Tapping Screw do you supply?

Execution standard: ISO 7053. The confirmed specification table covers 2.2–8 diameters and 4.5–50 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. 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.

Quote Hex Washer Head Tapping Screw

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Hex Washer Head Tapping Screw

Select sizes and quantities — 59 confirmed sizes to ISO 7053

ST2.2 × 4.5 × 0.8 × 3 × 3.2 × 2 × 0.8 × 0.25 × 2.8 × 4.2 × 3.8 × 1.7 × 0.9 × 0.1 × 0.15 × 2.86 × 2 × 1.6 × 3.7 × 5.3

ST2.2 × 6.5 × 0.8 × 3 × 3.2 × 2 × 0.8 × 0.25 × 2.8 × 4.2 × 3.8 × 1.7 × 0.9 × 0.1 × 0.15 × 2.86 × 2 × 1.6 × 5.7 × 7.3

ST2.2 × 9.5 × 0.8 × 3 × 3.2 × 2 × 0.8 × 0.25 × 2.8 × 4.2 × 3.8 × 1.7 × 0.9 × 0.1 × 0.15 × 2.86 × 2 × 1.6 × 8.7 × 10.3

ST2.2 × 13 × 0.8 × 3 × 3.2 × 2 × 0.8 × 0.25 × 2.8 × 4.2 × 3.8 × 1.7 × 0.9 × 0.1 × 0.15 × 2.86 × 2 × 1.6 × 12.2 × 13.8

ST2.2 × 16 × 0.8 × 3 × 3.2 × 2 × 0.8 × 0.25 × 2.8 × 4.2 × 3.8 × 1.7 × 0.9 × 0.1 × 0.15 × 2.86 × 2 × 1.6 × 15.2 × 16.8

ST2.2 × 19 × 0.8 × 3 × 3.2 × 2 × 0.8 × 0.25 × 2.8 × 4.2 × 3.8 × 1.7 × 0.9 × 0.1 × 0.15 × 2.86 × 2 × 1.6 × 18.2 × 19.8

ST2.9 × 6.5 × 1.1 × 4 × 4.28 × 2.8 × 1.1 × 0.4 × 3.5 × 6.3 × 5.8 × 2.5 × 1.3 × 0.1 × 0.2 × 3.82 × 2.6 × 2.1 × 5.7 × 7.3

ST2.9 × 9.5 × 1.1 × 4 × 4.28 × 2.8 × 1.1 × 0.4 × 3.5 × 6.3 × 5.8 × 2.5 × 1.3 × 0.1 × 0.2 × 3.82 × 2.6 × 2.1 × 8.7 × 10.3

ST2.9 × 13 × 1.1 × 4 × 4.28 × 2.8 × 1.1 × 0.4 × 3.5 × 6.3 × 5.8 × 2.5 × 1.3 × 0.1 × 0.2 × 3.82 × 2.6 × 2.1 × 12.2 × 13.8

ST2.9 × 16 × 1.1 × 4 × 4.28 × 2.8 × 1.1 × 0.4 × 3.5 × 6.3 × 5.8 × 2.5 × 1.3 × 0.1 × 0.2 × 3.82 × 2.6 × 2.1 × 15.2 × 16.8

ST2.9 × 19 × 1.1 × 4 × 4.28 × 2.8 × 1.1 × 0.4 × 3.5 × 6.3 × 5.8 × 2.5 × 1.3 × 0.1 × 0.2 × 3.82 × 2.6 × 2.1 × 18.2 × 19.8

ST3.5 × 9.5 × 1.3 × 5.5 × 5.96 × 3.4 × 1.3 × 0.6 × 4.1 × 8.3 × 7.6 × 3 × 1.5 × 0.1 × 0.25 × 5.32 × 3.2 × 2.5 × 8.7 × 10.3 × 2.7

ST3.5 × 13 × 1.3 × 5.5 × 5.96 × 3.4 × 1.3 × 0.6 × 4.1 × 8.3 × 7.6 × 3 × 1.5 × 0.1 × 0.25 × 5.32 × 3.2 × 2.5 × 12.2 × 13.8 × 2.7

ST3.5 × 16 × 1.3 × 5.5 × 5.96 × 3.4 × 1.3 × 0.6 × 4.1 × 8.3 × 7.6 × 3 × 1.5 × 0.1 × 0.25 × 5.32 × 3.2 × 2.5 × 15.2 × 16.8 × 2.7

ST3.5 × 19 × 1.3 × 5.5 × 5.96 × 3.4 × 1.3 × 0.6 × 4.1 × 8.3 × 7.6 × 3 × 1.5 × 0.1 × 0.25 × 5.32 × 3.2 × 2.5 × 18.2 × 19.8 × 2.7

ST3.5 × 22 × 1.3 × 5.5 × 5.96 × 3.4 × 1.3 × 0.6 × 4.1 × 8.3 × 7.6 × 3 × 1.5 × 0.1 × 0.25 × 5.32 × 3.2 × 2.5 × 21.2 × 22.8 × 2.7

Product details

Order assurance

Reports & inspection

Packaging & delivery

Product questions

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