The PROLOK CHRS10I-25 Clutch Head Security Screw is a tamper-resistant, self-tapping screw designed for permanent, secure installations in high-risk and public access environments. Made from 304-grade stainless steel for superior corrosion resistance, it features a one-way clutch drive and a smooth round head finish. This 10 gauge (4.8mm) x 38mm fastener is ideal for use in metal, wood, and plastic applications—commonly specified in correctional facilities, electrical enclosures, and urban infrastructure.
What’s Included in the Box
Main Features
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Tamper-Resistant Clutch Head: One-way drive prevents unauthorized removal.
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Self-Tapping AB Thread: Versatile use across timber, plastic, and thin metal surfaces.
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Round Head Profile: Delivers a clean and secure finish ideal for public-facing fixtures.
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304 Stainless Steel: Corrosion-resistant and suitable for indoor and outdoor applications.
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Permanent Fastening: Designed for security-critical and high-vandal-risk areas.
Detailed Specifications
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Part Number: CHRS10I-25
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Size: 10 Gauge (4.8mm) x 38mm
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Head Type: Round
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Drive Type: Clutch Head (1-Way)
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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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Quantity per Pack: 25 Screws
Warranty Information
This product includes a manufacturer’s warranty covering defects in materials and workmanship when used under standard installation and environmental conditions.
Brand Description
PROLOK is an industry leader in tamper-resistant fastener technology. Their secure and reliable hardware solutions are used across government, commercial, and utility sectors where safety, permanence, and durability are critical.
SKU / Part Number
CHRS10I-25
Practical Use Scenarios
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Correctional Facilities: Secure fixtures and panels where tampering must be prevented.
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Urban Installations: Mount street furniture, signage, and infrastructure components.
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Public Access Areas: Used in schools, parks, and stations to prevent unauthorized removal.
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Security Systems: Fasten enclosures, access panels, and alarm system components.
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Commercial Fit-Outs: Maintain secure assembly of high-value or sensitive fixtures.
Excellence for the Australian and New Zealand Market
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Designed in compliance with Australian safety and material standards
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Made from 304 stainless steel, ensuring longevity in coastal and outdoor applications
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Distributed through authorized ANZ suppliers for assured quality
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Widely used by electricians, builders, and security professionals
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Backed by local technical support and warranty services
Datasheets / Downloadable Resources
📄 Technical Datasheet – PROLOK CHRS10I-25 Security Screw (PDF
FAQs – CHRS10I-25
Q1: What is the size of the CHRS10I-25 screw?
A1: It is a 10 gauge (4.8mm diameter) x 38mm length self-tapping screw.
Q2: What materials is this screw compatible with?
A2: CHRS10I-25 is suitable for metal, wood, and plastic substrates.
Q3: Is the screw tamper-resistant?
A3: Yes, it features a one-way clutch head that prevents removal using standard tools.
Q4: What material is the CHRS10I-25 screw made from?
A4: It is manufactured from 304-grade stainless steel for maximum corrosion resistance.
Q5: How many screws are in each pack?
A5: Each pack contains 25 screws.
Q6: Can this be used outdoors?
A6: Yes, the stainless steel material makes it suitable for both indoor and outdoor environments.
Q7: Is CHRS10I-25 compliant with Australian standards?
A7: Yes, it is manufactured to industry-standard specifications and distributed through ANZ-authorized channels.
Q8: What is the application type for this screw?
A8: It’s a self-tapping AB-thread screw suitable for permanent installations requiring security.
Q9: What tool is required for installation?
A9: A clutch head driver is required for installation—removal is not possible with standard tools.
Q10: Where can I get the technical datasheet for CHRS10I-25?
A10: The Technical Datasheet – CHRS10I-25 (PDF) is available upon request from authorized PROLOK distributors.