The PROLOK RTBM620-25 Resytork Security Machine Screw is a reliable tamper-resistant solution designed for installations requiring controlled access and high durability. Featuring a 2-way Resytork drive and a clean button head, these M6 x 20mm screws are made from premium 304 stainless steel for superior corrosion resistance. Suitable for both indoor and outdoor applications, the set comes with a matching driver bit—making it ideal for quick deployment in commercial, public, and industrial environments.
What’s Included in the Box
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25 × PROLOK Resytork Button Head Machine Screws – M6 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: Tamper-resistant system allows removal with a matched driver only. 
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M6 x 20mm Machine Thread: Precise and strong threading for secure fastening into metal or inserts. 
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304 Stainless Steel: Offers excellent corrosion resistance for long-term durability in harsh environments. 
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Button Head Profile: Smooth and secure design for public or exposed installations. 
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Driver Included: Installation-ready for tradespeople and maintenance crews. 
Detailed Specifications
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Part Number: RTBM620-25 
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Size: M6 x 20mm 
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Drive Type: Resytork (2-Way) 
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Head Style: Button Head 
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Thread Type: Machine 
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Material: 304 Stainless Steel 
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Finish: Natural 
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Pack Size: 25 Screws + 1 Resytork Driver Bit 
Warranty Information
Backed by a manufacturer’s warranty covering workmanship and material integrity under typical use conditions.
Brand Description
PROLOK is a market leader in tamper-resistant fastening systems, delivering dependable anti-tamper security for critical installations across utilities, transport, commercial, and government sectors throughout Australia and New Zealand.
SKU / Part Number
RTBM620-25
Practical Use Scenarios
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Utility Cabinets & Panels: Prevent unauthorized access in public infrastructure. 
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Commercial Equipment: Secure displays, POS terminals, and kiosk housings. 
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Public Installations: Used on signage, lighting covers, and enclosures. 
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Transport Systems: Lock down transit station panels and terminals. 
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Controlled-Access Areas: Enable secure but serviceable access to electrical and data boxes. 
Excellence for the Australian and New Zealand Market
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Manufactured to meet ANZ compliance standards for tamper-resistant hardware 
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304 stainless steel ensures longevity in coastal and outdoor applications 
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Supplied through authorized regional distributors 
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Includes driver bit for fast, accurate installation 
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Widely used in infrastructure, government, retail, and industrial security settings 
Datasheets / Downloadable Resources
📄 Download Technical Datasheet – PROLOK RTBM620-25 (PDF)
FAQs – RTBM620-25
Q1: What size is the PROLOK RTBM620-25 screw?
A1: The screw measures M6 x 20mm with a machine thread and button head.
Q2: What is the drive type for RTBM620-25?
A2: It uses a 2-way Resytork drive, which is tamper-resistant and removable with the included driver.
Q3: Is the screw corrosion-resistant?
A3: Yes, it is made from 304-grade stainless steel for excellent corrosion resistance.
Q4: Can the RTBM620-25 be used outdoors?
A4: Yes, it’s suitable for outdoor environments due to its stainless steel composition.
Q5: Does the pack include a driver?
A5: Yes, one Resytork driver bit is included for convenience.
Q6: Is the RTBM620-25 tamper-proof or tamper-resistant?
A6: It is tamper-resistant—removal requires the matching Resytork driver.
Q7: What is the head type of RTBM620-25?
A7: It features a smooth, button head profile.
Q8: Where can this screw be used?
A8: It’s used in public infrastructure, electrical cabinets, security panels, and controlled-access systems.
Q9: How many screws are included in each pack?
A9: The RTBM620-25 pack includes 25 screws and one driver bit.