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Pin Hex Socket Cap Thread Rolling Screws (DIN 912 with Pin)

Pin Hex Socket Cap Thread Rolling screws host a 6-point star-shaped head with a centre pin that resists standard torx bits. They require a special insert bit or key wrench to insert and remove.

They are made to DIN 912 standard and are known for their safety and reliability, whilst remaining an economically viable option.

These screws are ideal for applications that have limited access as they require only a small amount of clearance to fasten. They can be used in locations where externally wrenched fasteners are not desirable and will sit flush with the fastening material if used with the head recessed in a counterbored hole.

Thread Rolling screws are typically designed for use with metals, but can be suitable for use with other malleable materials.

They host a three lobe thread design which when inserted into the fastening material, creates it’s own threads, pushing any excess material into the relief areas of the screw. This increases resistance to vibration and reduces the chance of the screw becoming loose.

Pin Hex Socket Cap Thread Rolling screws also help to avoid loose chips that are caused by other thread cutting processes, whilst able to be driven into a pre-drilled hole without the need for thread tapping. However an extruded hole may provide extra length and allow for improved retention.

Manufactured as standard in Steel Zinc Plated and Steel Black Plated.

Available from Fastenright in thread diameters M4 to M8 and lengths ranging from 8mm to 50mm as standard.

Non-standard sizes, materials and finishes are available to order as specials, including small volume manufacture, modifications and custom parts made to drawings.
Pin Hex Socket Cap Thread Rolling Screw Technical Drawing

Metric Technical Information & Available Sizes
Thread Diameter M4 M5 M6 M8 M10
d1 (mm) 7.00 8.50 10.00 13.00 16.00
k (mm) 4.00 5.00 6.00 8.00 10.00
C (mm) 4.08 5.09 6.10 8.13 10.15
S (mm) 3.00 4.00 5.00 6.00 8.00
Available Sizes M4 M5 M6 M8 M10
4mm
5mm
6mm
8mm black icon imageblack icon image black icon imageblack icon image
10mm black icon imageblack icon image black icon imageblack icon image black icon imageblack icon image
12mm black icon imageblack icon image black icon imageblack icon image black icon imageblack icon image
14mm
16mm black icon imageblack icon image black icon imageblack icon image black icon imageblack icon image black icon imageblack icon image
18mm
20mm black icon imageblack icon image black icon imageblack icon image black icon imageblack icon image black icon imageblack icon image
22mm
25mm black icon imageblack icon image black icon imageblack icon image black icon imageblack icon image black icon imageblack icon image
30mm black icon imageblack icon image black icon imageblack icon image black icon imageblack icon image
35mm black icon imageblack icon image
40mm black icon imageblack icon image black icon imageblack icon image
45mm
50mm black icon imageblack icon image black icon imageblack icon image
black icon image = Steel Zinc Plated
black icon image = Steel Black Plated (may have increased lead times, please make an enquiry)
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