The PROLOK Clutch Head Security Screw (CHRS10F-25) is a high-quality tamper-resistant fastener, expertly crafted from corrosion-resistant 304 stainless steel. Featuring a clutch (one-way) drive and AB-type self-tapping thread, this 10-gauge (4.8mm) x 19mm round head screw is ideal for applications where permanent, secure installation is critical. Suitable for metal, plastic, and timber substrates, these screws are widely used in public infrastructure, electrical enclosures, and security-sensitive installations.

What’s Included in the Box

• 25 × PROLOK Clutch Head Round Head Self-Tapping Screws – 10G x 19mm, 304 Stainless Steel

Main Features

• One-Way Clutch Head: Provides a permanent tamper-proof fastening that cannot be removed with standard tools.

• AB Type Self-Tapping Thread: Ideal for fast, clean installation into wood, plastic, and thin metal.

• 304 Stainless Steel Construction: Offers superior corrosion resistance in indoor and outdoor environments.

• Smooth Round Head Finish: Prevents snagging and tampering, while offering a clean, professional look.

• Multi-Surface Compatibility: Perfect for installations across construction, utilities, and public facilities.

Detailed Specifications

• Part Number: CHRS10F-25

• Size: 10 Gauge (4.8mm diameter) x 19mm length

• Head Type: Round

• Drive Type: Clutch Head (One-Way)

• Thread Type: AB Type Self-Tapping

• Material: 304 Stainless Steel

• Finish: Natural stainless steel

• Pack Size: 25 screws

• Application Mediums: Compatible with metal, plastic, and wood substrates

Warranty Information

Includes a standard manufacturer’s warranty against defects in material or workmanship under normal installation and environmental conditions.

Brand Description

PROLOK is a trusted security hardware brand specializing in tamper-resistant fasteners for high-risk environments. Designed with precision and durability, PROLOK fasteners are a go-to solution for professionals in security, infrastructure, utilities, and public space protection.

SKU / Part Number

CHRS10F-25

Practical Use Scenarios

• Access Control Systems: Secure housings and panels with tamper-proof fasteners.

• Public Infrastructure: Used for signage, public benches, and lighting where vandalism is a concern.

• CCTV & Alarm Installations: Permanently mount brackets and enclosures in high-traffic areas.

• Electrical Cabinets: Prevent unauthorized access to critical control panels.

• Retail Fixtures: Deter disassembly or theft of point-of-sale components and displays.

Excellence for the Australian and New Zealand Market

• Manufactured to support ANZ security standards and installation environments

• Ideal for coastal and outdoor settings thanks to 304 stainless steel corrosion resistance

• Supplied by authorized local distributors for genuine product assurance

• Widely used by electricians, security integrators, and facility managers across Australia and New Zealand

• Supported by local technical service and warranty handling

Datasheets / Downloadable Resources

📄 Technical Datasheet – PROLOK Security Screw CHRS10F-25 (PDF).

 FAQs – CHRS10F-25

Q1: What is the size of the PROLOK CHRS10F-25 screw?
A1: The screw is 10 gauge (4.8mm) in diameter and 19mm in length.

Q2: What materials is the CHRS10F-25 compatible with?
A2: It is suitable for metal, plastic, and wood applications.

Q3: What makes the CHRS10F-25 tamper-resistant?
A3: It uses a one-way clutch head that cannot be removed with standard tools, ensuring permanent fastening.

Q4: Is the CHRS10F-25 corrosion resistant?
A4: Yes, it’s made from 304 stainless steel, offering excellent corrosion resistance for outdoor use.

Q5: How many screws come in a pack of CHRS10F-25?
A5: Each pack contains 25 screws.

Q6: Can CHRS10F-25 be used for outdoor security fixtures?
A6: Yes, the 304 stainless steel material makes it ideal for outdoor and marine-adjacent environments.

Q7: What type of thread does CHRS10F-25 use?
A7: It features an AB-type self-tapping thread suitable for secure installation across various surfaces.

Q8: Where can I get installation instructions or the datasheet for CHRS10F-25?
A8: The Technical Datasheet – CHRS10F-25 (PDF) is available on request from your authorized distributor.

Q9: Is this screw suitable for fixing into hardwood?
A9: Yes, the AB thread type allows for effective penetration and grip in hardwood and dense materials.

Q10: Does the CHRS10F-25 meet Australian security compliance needs?
A10: Yes, it is widely used in installations requiring tamper-proof hardware in the Australian and New Zealand markets.