The PROLOK RTBS12J-20 Resytork Self-Tapping Security Screw delivers powerful tamper resistance for high-risk or publicly accessible installations. Designed with a 12-gauge (5.5mm) diameter and extended 50mm length, this screw provides exceptional grip in timber, plastic, and thin metal surfaces. Its 2-way Resytork drive allows secure installation and controlled removal using the included bit. Built from 304-grade stainless steel, it's ideal for outdoor and corrosion-prone environments—perfect for councils, utilities, and industrial infrastructure.
What’s Included in the Box
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20 × PROLOK Resytork Button Head Self-Tapping Screws – 12G x 50mm, 304 Stainless Steel 
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1 × Resytork 2-Way Driver Bit 
Main Features
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2-Way Resytork Drive: Enables tamper resistance with authorized removability using the supplied bit. 
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AB-Type Thread: Ensures secure, self-tapping hold across a variety of materials. 
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12 Gauge Strength (5.5mm): Delivers enhanced structural security and grip in demanding settings. 
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304 Stainless Steel: Ideal for harsh or marine environments thanks to superior corrosion resistance. 
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Installation-Ready Kit: Driver included for fast, professional deployment. 
Detailed Specifications
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Part Number: RTBS12J-20 
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Size: 12 Gauge (5.5mm) x 50mm 
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Drive Type: Resytork (2-Way) 
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Head Style: Button 
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Thread Type: AB Type, Self-Tapping 
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Material: 304 Stainless Steel 
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Finish: Natural 
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Pack Size: 20 Screws + 1 Driver Bit 
Warranty Information
Covered by a manufacturer's warranty against defects in material and workmanship under standard usage conditions.
Brand Description
PROLOK specializes in high-security, tamper-resistant fasteners designed for industrial, public infrastructure, and commercial use. Known for their precision-engineered clutch and Resytork systems, PROLOK screws offer reliable security where vandalism or unauthorized access is a concern.
SKU / Part Number
RTBS12J-20
Practical Use Scenarios
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Public Infrastructure: Install on signage, bollards, and electrical access points in outdoor environments. 
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Transport Systems: Secure equipment, enclosures, and access plates in stations or terminals. 
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Utilities and Maintenance Panels: Ideal for high-security panels that require controlled servicing. 
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Industrial Settings: Withstand extreme conditions while preventing tampering in production zones. 
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Construction & Fit-Outs: Long-length screw supports deep, permanent fixing of timber or cladding panels. 
Excellence for the Australian and New Zealand Market
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Designed for compliance with ANZ anti-tamper and material standards 
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Made from 304 stainless steel for outstanding performance in coastal or corrosive environments 
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Distributed through authorized Australian and New Zealand hardware suppliers 
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Widely used in council contracts, public safety upgrades, and high-risk infrastructure projects 
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Delivered with support and warranty backed by local distribution channels 
Datasheets / Downloadable Resources
📄 Download Technical Datasheet – PROLOK RTBS12J-20 (PDF)
 FAQs – RTBS12J-20
Q1: What are the dimensions of the RTBS12J-20 screw?
A1: The screw is 12 gauge (5.5mm) in diameter and 50mm in length.
Q2: What makes the RTBS12J-20 tamper-resistant?
A2: It uses a Resytork 2-way drive which prevents standard tool removal; a matching driver is included.
Q3: Can the RTBS12J-20 be used outdoors?
A3: Yes, it's made from 304 stainless steel, suitable for harsh or marine environments.
Q4: Is this screw suitable for wood and metal?
A4: Yes, the AB-type self-tapping thread provides secure grip in wood, plastic, and thin metal.
Q5: What is included in the RTBS12J-20 pack?
A5: 20 screws and 1 Resytork 2-way driver bit.
Q6: What industries commonly use RTBS12J-20?
A6: Utilities, government infrastructure, industrial sites, and transportation facilities.
Q7: Does this product meet Australian standards?
A7: Yes, it is designed for compliance with Australian and New Zealand durability and anti-tamper regulations.
Q8: How does the Resytork drive work?
A8: It requires a matching Resytork driver for installation and removal—preventing tampering with common tools.
Q9: What’s the advantage of 12-gauge size?
A9: Greater strength and deeper penetration make it ideal for demanding load-bearing or high-security applications.