4 x 1/2" Self Tapping Screws Pan Head CRCS Zinc Plated (Part No. OJ172781)
Part Number: OJ172781
SOLD INDIVIDUALLY
Key Features
- Self-tapping screw designed to cut its own thread into pre-drilled materials
- Suitable for use with sheet metal, plastic, and other thin materials
- Pan head design provides a neat finish with a broad bearing surface
- Cross recessed drive (CRCS) allows quick and easy installation with hand or power tools
- AB sharp point ensures efficient thread cutting and secure fastening
- Ideal for applications where access is only available from one side
- Bright Zinc Plated (BZP) finish helps protect against corrosion
- Manufactured in accordance with BS4174 standards
Specifications
- Screw Size: No. 4
- Length: 1/2" (12.7mm)
- Head Type: Pan Head
- Drive Type: Cross Recessed (CRCS)
- Point Type: AB Sharp Point
- Finish: Bright Zinc Plated (BZP)
- Standard: BS4174
Benefits
- Forms its own thread, simplifying installation and reducing assembly time
- Ideal for thin materials where nuts and bolts may not be practical
- Suitable for one-sided fixing applications with limited rear access
- Corrosion-resistant zinc finish helps extend the life of the fixing
- Pan head design provides good load distribution and a tidy appearance
Recommended Applications
- Fixing sheet metal panels
- Securing plastic components and enclosures
- Electrical and mechanical assembly work
- DIY repairs and maintenance projects
- Workshop and fabrication applications
- Attaching brackets, covers, and lightweight fittings
Product Overview
The 4 x 1/2" Self Tapping Pan Head Screws are versatile fasteners designed to create their own thread in pre-drilled sheet metal, plastic, and similar materials. Featuring a cross recessed drive, pan head profile, and sharp AB point, they provide quick installation and reliable holding power without requiring access to the rear of the fixing. Finished in Bright Zinc Plate (BZP) for enhanced corrosion resistance and manufactured to BS4174 standards, these screws are ideal for DIY, maintenance, workshop, and light industrial applications.
UK Mainland* Zone 1 - Standard Parcel
| Order Value |
Delivery Charge |
| Up to £49.99 |
£4.95 |
| £50 and over |
FREE |
UK Mainland* Zone 1 - Large Parcel (items over 1 metre in length)
| Order Value |
Delivery Charge |
| Any Value |
£9.99 |
*Excludes Scottish Highlands
For information on deliveries to Northern Ireland, Scottish Highlands, Islands & IOM please see our UK Deliveries page.
FREE DELIVERIES FOR ORDERS OVER £30 ISLANDWIDE
Orders Under £30 - carriage is £4.95
Our own vans deliver to the following areas on the stated days.
| Monday |
East Island |
| Tuesday |
West Island |
| Wednesday |
East Island |
| Thursday |
West Island |
| Friday |
East Island |
For a more comprehensive list please Click Here and search for your postcode.
We don't deliver weekends or Bank Holidays.