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
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25 × PROLOK Resytork Button Head Machine Screws – M5 x 20mm, 304 Stainless Steel
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1 × Resytork 2-Way Driver Bit
Main Features
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Resytork 2-Way Drive: Offers tamper resistance while allowing authorized removal.
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Button Head Design: Low-profile and clean finish ideal for public installations.
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304 Stainless Steel: Exceptional corrosion resistance for indoor and outdoor use.
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Precision Machine Thread: Ensures strong engagement in metal or pre-threaded inserts.
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Installation Ready: Supplied with a driver bit for convenience and immediate deployment.
Detailed Specifications
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Part Number: RTBM520-25
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Size: M5 x 20mm
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Thread Type: Machine
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Head Type: Button
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Drive Type: Resytork (2-Way)
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Material: 304 Stainless Steel
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Finish: Natural Stainless
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Pack Size: 25 Screws + 1 Driver Bit
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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
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Access Control Equipment: Secure enclosures while maintaining service access.
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Public Infrastructure: Prevent tampering of fixtures, bollards, and signage.
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Retail Display & POS Units: Maintain structural security in high-traffic areas.
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Electrical Panels & Terminals: Allow authorized service personnel access while deterring tampering.
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Transit Systems: Use in stations, kiosks, and transit enclosures.
Excellence for the Australian and New Zealand Market
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Compliant with regional safety and quality standards
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Manufactured using 304 stainless steel, suited for harsh or coastal climates
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Supplied through certified ANZ distributors
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Trusted by professionals in council infrastructure, public transport, and commercial installations
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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.
