Specifications
Brand Name :
JIASHAN
Certification :
ISO 9001
Place of Origin :
china
MOQ :
10pcs
Price :
$0.01~2.56,Piece/Pieces
Payment Terms :
L/C,D/A,D/P,T/T
Supply Ability :
10000,Piece/Pieces,Month
Delivery Time :
about 12-18days
Packaging Details :
Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film.
Product name :
Security Screw
Service :
OEM
Corrosion Resistance :
Yes
Port :
Shenzhen, Guangzhou
Corrosionresistance :
High
Thread Type :
Standard/Customization
Package :
Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film.
Finish :
customized
Description
Astm A193 Plain Triangular Flat Csk Head Security Metal Screw Anti Theft Screw M3 M4

Astm A193 Plain Triangular  Flat Csk Head Security Metal Screw Anti Theft Screw  M3 M4

Product Description

This security screw features a triangular recess drive with a flat countersunk (CSK) head for flush installation. Conforming to ASTM A193 material specifications, the screw is made from high‑quality alloy steel or stainless steel (plain finish as standard). The triangular drive is designed to accept only a matching triangular bit, providing effective anti‑theft protection. The countersunk head allows the screw to sit below or level with the workpiece surface, making it difficult to grip with pliers or other extraction tools. Available in M3 and M4 sizes, these screws are commonly used in panels, signage, and light‑duty security applications.

Applications
Industry Usage
Automotive High-strength applications in engines, heavy-duty machinery, and bridge construction
Mechanical Connecting mechanical parts, circuit boards, engines, transmissions in various industries
Energy Connecting power generation equipment and transmission lines
Architectural Building structures, shipbuilding, and petrochemical equipment
  • Street furniture – bench planks, litter bin access panels.

  • Electrical switchgear covers in public buildings.

  • Signage and advertising displays – prevents unauthorised removal.

  • University and school laboratory equipment housings.

  • Access covers on vending machines and ticket validators.

Key Features
  • Countersunk head – sits flush, cannot be grabbed by hand tools.

  • Triangular drive – requires dedicated key, blocks standard bits.

  • ASTM A193 material – reliable mechanical properties for structural use.

  • Plain finish – suitable for indoor applications or as base for painting.

  • M3/M4 sizes – cover small to medium panel mounting needs.

Company Information
Astm A193 Plain Triangular  Flat Csk Head Security Metal Screw Anti Theft Screw  M3 M4 Astm A193 Plain Triangular  Flat Csk Head Security Metal Screw Anti Theft Screw  M3 M4 Astm A193 Plain Triangular  Flat Csk Head Security Metal Screw Anti Theft Screw  M3 M4 Astm A193 Plain Triangular  Flat Csk Head Security Metal Screw Anti Theft Screw  M3 M4
Frequently Asked Questions
Q: Are you trading company or manufacturer?
A: We are factory and OEM are available.
Q: How long is your delivery time?
A: Generally 7-10 days if in stock, or 15-20 days if not in stock (depending on quantity).
Q: Do you provide samples? Is it free or extra?
A: Yes, we offer free samples but customers pay the freight cost.
Q: What are your payment terms?
A: 30% T/T in advance, balance before shipment or L/C.
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Astm A193 Plain Triangular Flat Csk Head Security Metal Screw Anti Theft Screw M3 M4

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Brand Name :
JIASHAN
Certification :
ISO 9001
Place of Origin :
china
MOQ :
10pcs
Price :
$0.01~2.56,Piece/Pieces
Payment Terms :
L/C,D/A,D/P,T/T
Contact Supplier
video
Astm A193 Plain Triangular  Flat Csk Head Security Metal Screw Anti Theft Screw  M3 M4
Astm A193 Plain Triangular  Flat Csk Head Security Metal Screw Anti Theft Screw  M3 M4
Astm A193 Plain Triangular  Flat Csk Head Security Metal Screw Anti Theft Screw  M3 M4
Astm A193 Plain Triangular  Flat Csk Head Security Metal Screw Anti Theft Screw  M3 M4

Hunan Jia Shan Hardware Tech Co., Ltd.

Verified Supplier
1 Years
hunan
Since 2007
Business Type :
Manufacturer, Exporter, Seller
Total Annual :
15000000-20000000
Employee Number :
100~200
Certification Level :
Verified Supplier
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