Hafren PHRM Raised Countersunk Pin Hex Machine Screws
Product overview
Hafren PHRM Raised Countersunk Pin Hex Machine Screws
Hafren PHRM Raised Countersunk Pin Hex Machine Screws are premium, high-security hexagon socket screws with a raised countersunk head. This advanced Hafren PHRM design features an internal pin that prevents removal using standard hexagon tools, making them ideal for medium torque applications where security and integrity are critical. The raised countersunk design ensures a neat, professional finish while offering excellent tamper resistance.
- Also stocked: AB Self Tapping and Metric Machine Screws (A2 Stainless Steel)
- Other materials and finishes available to order, subject to minimum order quantities
Part Numbers: PHRM3512, PHRM3520, PHRM3525, PHRM3530, PHRM3540, PHRM3550, PHRM3560.
Hafren PHRM – Features
Material: A2 Stainless Steel
Heat Treatment: None
Finish: Passivated
Part Numbers & Driver Sizes
| Size | Screw Part No | Driver Part No |
| M3.5 | PHRM3512 | H30 |
| M3.5 | PHRM3520 | H30 |
| M3.5 | PHRM3525 | H30 |
| M3.5 | PHRM3530 | H30 |
| M3.5 | PHRM3540 | H30 |
| M3.5 | PHRM3550 | H30 |
| M3.5 | PHRM3560 | H30 |
Hafren Security Fasteners
Hafren Fasteners manufacture and supply security & tamper resistant fasteners; special headed screws, nuts & bolts. Their solutions are either permanent, or removable only by using a matching driver tool. They design and supply a wide range of security fasteners including bespoke made to measure security fasteners. If they don’t have what you need they’ll make it just the way you want.
Security: The need to safeguard against theft and vandalism is increasingly an essential part of many design specifications.
Safety: Complying with stringent Health & Safety Law, their fasteners keep the public safe.
Aesthetics: Security fasteners are not only secure and vandal-resistant, but aesthetically pleasing to the eye complementing their surrounding environment
For Additional Information on Hafren PHRM Raised Countersunk Pin Hex Machine Screws, please consult the Technical Data Table or PDF Files below.
*Technical Data subject to change without notice.
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Contact us for enquiries concerning this and all other products: +44 (0) 1744 762 929
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+44 (0)1744 762 929Technical Data
| Part Number | Size | Driver Part Number | Length (L) | Box Quantity |
| PHRM3512 | M3.5 | H30 | 12mm | 100 |
| PHRM3520 | M3.5 | H30 | 20mm | 100 |
| PHRM3525 | M3.5 | H30 | 25mm | 100 |
| PHRM3530 | M3.5 | H30 | 30mm | 100 |
| PHRM3540 | M3.5 | H30 | 40mm | 100 |
| PHRM3550 | M3.5 | H30 | 50mm | 100 |
| PHRM3560 | M3.5 | H30 | 60mm | 100 |
Additional Information
Tools & Accessories:
