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Hospa Screw, Jet, Countersunk Head with T Star Drive Bit, Partially Threaded

Part Number: 017.91.321
Multi-Purpose, Length 80 mm, thread Ø 4.5 mm, head Ø 9 mm, TS20, 200 Pack
Price:
£8.78
Per 200 Pack
VAT excluded

Hospa Screw, Jet, Countersunk Head with T Star Drive Bit, Partially Threaded (Product Part No: 017.91.321) is a... Read More

Product Information

Product Details

Hospa Screw, Jet, Countersunk Head with T Star Drive Bit, Partially Threaded (Product Part No: 017.91.321) is a reliable, multi-purpose screw made for professionals and DIY users who want clean, secure fixing in wooden and board applications. Included in this 200 Pack, this Hospa Screw is an excellent choice when you need consistent performance across projects—without compromising on strength or finish.

Designed with a countersunk head, the screw sits neatly for a smoother final appearance, helping you achieve a professional-looking build. Its TS20 drive makes installation fast and controlled using a matching Torx/T-Star bit, giving you confidence as you tighten and secure.

With a length of 80 mm and a thread diameter of 4.5 mm (head Ø 9 mm), this screw is built to grip firmly. The partially threaded design and high/low thread pattern support strong holding power, especially when fastening into wood or coated/non-coated board materials.

For added durability and corrosion resistance, the screw features a zinc plated finish and is made from steel. That combination supports dependable use in everyday building conditions—ideal for interior fitting, structural-style joins, and panel work.

Area of application: for wooden material and coated and non-coated board materials. Choose the Hospa Screw, Jet, Countersunk Head with T Star Drive Bit, Partially Threaded. Multi-Purpose, Length 80 mm, thread Ø 4.5 mm, head Ø 9 mm, TS20, 200 Pack and stock up for your next job with confidence.

Specifications

Colour/finish

Zinc plated

Material

Steel

Type of head

countersunk head

Drive

T-Star / Torx

Thread

Partially Threaded

Thread type

High/low thread

Area of application

For wooden material
for coated and non-coated board materials

FAQ

Product Details

What does Hospa Jet Scr Prt Csk TS20 D4.5x80mm Glv mean?

TS20 refers to the T Star Torx drive size, D4.5 is the thread diameter, and 80 mm is the screw length. Csk indicates a countersunk head, designed to sit flush in the material for a neat finish.

Will these screws work on both treated and untreated timber based boards?

Yes. These screws are suitable for wooden material and coated and non coated board materials, making them a good all round choice for common fixing tasks around the workshop or home.

Are these screws designed for a countersunk, flush fit?

Yes. The countersunk head is intended to sit flush with the surface when driven correctly, helping to reduce snagging and improving the overall appearance of the finished job.

What drive tool do I need for the TS20 head?

You will need a TS20 T Star Torx bit or driver. Using the correct drive size helps prevent cam out and gives better control, especially when installing multiple screws.

Is the thread fully threaded or partially threaded?

These screws use a partially threaded design with a high low thread profile. This arrangement can help with pulling the joint tight and providing good grip in the upper portion of the fixing.

What length and thickness are these screws suitable for?

The screw length is 80 mm with a 4.5 mm thread diameter. This size is commonly used for stronger structural type connections in timber and board applications where extra bite and length are needed.

Do I need to worry about corrosion when using them indoors or outdoors?

The screws are zinc plated, which provides corrosion resistance for everyday fixing work. For fully exposed outdoor applications, conditions vary, so it is still worth checking the environment and considering additional protection if needed.

How many screws come in the pack and what are they ideal for?

Each pack contains 200 screws. That makes them handy for projects where you expect repeated fixings, such as assembling furniture components, general joinery work, and multiple board or timber connections without running short.