The PROLOK RTBM520-25 Resytork Button Head Machine Screw provides secure and removable tamper resistance for sensitive or public-facing installations. Featuring a 2-way Resytork drive and manufactured from high-grade 304 stainless steel, this M5 x 20mm screw is perfect for applications that require a balance of controlled access and anti-tamper protection. The pack includes 25 screws and one matching driver bit—making it ideal for tradespeople, contractors, and facility technicians.

What’s Included in the Box

• 25 × PROLOK Resytork Button Head Machine Screws – M5 x 20mm, 304 Stainless Steel

• 1 × Resytork 2-Way Driver Bit

Main Features

• Resytork 2-Way Drive: Offers tamper resistance while allowing authorized removal.

• Button Head Design: Low-profile and clean finish ideal for public installations.

• 304 Stainless Steel: Exceptional corrosion resistance for indoor and outdoor use.

• Precision Machine Thread: Ensures strong engagement in metal or pre-threaded inserts.

• Installation Ready: Supplied with a driver bit for convenience and immediate deployment.

Detailed Specifications

• Part Number: RTBM520-25

• Size: M5 x 20mm

• Thread Type: Machine

• Head Type: Button

• Drive Type: Resytork (2-Way)

• Material: 304 Stainless Steel

• Finish: Natural Stainless

• Pack Size: 25 Screws + 1 Driver Bit

• Application: For controlled-access installations in public, commercial, and industrial environments

Warranty Information

Covered by a standard manufacturer’s warranty for material and workmanship defects under normal installation and use conditions.

Brand Description

PROLOK is trusted across Australia and New Zealand for advanced tamper-resistant fasteners. Their Resytork and clutch head screws are widely used by contractors, councils, utilities, and commercial installers requiring reliable and secure fixing solutions.

SKU / Part Number

RTBM520-25

Practical Use Scenarios

• Access Control Equipment: Secure enclosures while maintaining service access.

• Public Infrastructure: Prevent tampering of fixtures, bollards, and signage.

• Retail Display & POS Units: Maintain structural security in high-traffic areas.

• Electrical Panels & Terminals: Allow authorized service personnel access while deterring tampering.

• Transit Systems: Use in stations, kiosks, and transit enclosures.

Excellence for the Australian and New Zealand Market

• Compliant with regional safety and quality standards

• Manufactured using 304 stainless steel, suited for harsh or coastal climates

• Supplied through certified ANZ distributors

• Trusted by professionals in council infrastructure, public transport, and commercial installations

• Driver included for efficient on-site deployment and installation

Datasheets / Downloadable Resources

📄 Technical Datasheet – PROLOK RTBM520-25 (PDF

 FAQs – RTBM520-25

Q1: What is the size of the RTBM520-25 security screw?
A1: The screw measures M5 x 20mm.

Q2: What is the drive type of the RTBM520-25?
A2: It features a 2-way Resytork drive, which allows secure removal with the included driver.

Q3: Is the RTBM520-25 screw corrosion-resistant?
A3: Yes, it is made from 304 stainless steel, which is highly resistant to rust and corrosion.

Q4: How many screws come in a pack of RTBM520-25?
A4: Each pack contains 25 screws and one Resytork driver bit.

Q5: Can RTBM520-25 be used outdoors?
A5: Absolutely. Its stainless steel construction makes it suitable for outdoor and high-moisture environments.

Q6: Is RTBM520-25 a tamper-proof or tamper-resistant screw?
A6: It is tamper-resistant, meaning it deters unauthorized removal but can be removed with the correct Resytork driver.

Q7: Where is RTBM520-25 commonly used?
A7: It's ideal for access panels, public fixtures, control cabinets, and security enclosures.

Q8: Is this screw compliant with Australian and New Zealand installation standards?
A8: Yes, it meets the performance and material standards for use across ANZ installations.

Q9: Does the RTBM520-25 include the correct driver?
A9: Yes, each pack includes one Resytork 2-way driver bit for convenient installation.

Q10: Where can I request the datasheet for RTBM520-25?
A10: The Technical Datasheet – RTBM520-25 (PDF) is available from authorized PROLOK distributors upon request.