What are Dome Head Nipple Screws used for?

These screws are specifically designed for holding weather bars and drip bars in place on doors and windows. They can be anchored straight into uPVC frame skins and are also suitable for use on composite and timber doors.

Do I need separate caps to cover the screw heads?

No, separate caps are not needed. These screws feature an enlarged, dome-shaped nipple head designed to provide a neat, finished look that is meant to be seen.

Are these screws easy to install into uPVC frames?

Yes, they are designed for easy installation. With a self-drilling point and self-tapping thread, these screws bite straight into the material without requiring pre-drilling.

What sizes and quantities are available for these screws?

These zinc-plated carbon steel screws come in a 4.0 x 13 mm size. You can choose your pack size from the drop-down menu, with options ranging from a pack of 4 up to a pack of 100.

What are Dome Head Nipple Screws used for?

Dome Head Nipple Screws are specifically designed for holding weather bars and drip bars in place on doors and windows. These screws can be anchored straight into uPVC frame skins and are also suitable for use on composite and timber doors, providing a neat and secure finish.

1 7

Rapierstar

Dome Head Nipple Screws - Weather Bar & uPVC Frame Fixing

£4.95 GBP

Sale Sold out

Taxes included.

Pack Size Pack of 4 Pack of 8 Pack of 12 Pack of 16 Pack of 20 Pack of 50 Pack of 100

Dome Head Nipple Screws

We use these screws for holding weather bars & drip bars in place on doors and windows — they also anchor straight into uPVC frame skins, and are used on timber and composite doors. The enlarged, dome-shaped “nipple” head is meant to be seen: a neat, finished head with no separate cap needed. A self-drilling point and self-tapping thread mean they bite straight in.

Specification

Size: 4.0 × 13 mm
Head: enlarged dome / nipple head
Point & thread: self-drilling, self-tapping
Material: zinc-plated carbon steel (silver)
Manufacturer part no: NSR 4.0 × 13Z

Choose your pack size from the drop-down — from a single pack up to 100.

We have been manufacturing, installing & repairing windows, doors & glass for over 30 years, and only sell tried & tested products that we use ourselves. Free postage & packing, we aim to despatch same day. Price includes VAT.

View full details