Penta Head Bolt

Tengco's Penta Bolts are Tamper-Resistant Fasteners for High-Security Applications. Penta bolts, also known as pentagon head screws or 5-point screws, are specially designed security fasteners featuring a unique five-sided (pentagonal) head. Unlike standard hex bolts, penta bolts require a specialized penta socket tool for removal, making them an excellent choice for applications where security is a top priority.

Where Are Penta Bolts Used?

Due to their tamper-resistant design, penta bolts are commonly used in utility and infrastructure security applications, including:

• Polymer concrete vaults – Providing a secure locking mechanism for underground enclosures.
• Meter boxes – Preventing unauthorized access to electrical and gas meters.
• Pole top transformers – Ensuring the safety of electrical components by restricting tampering.
• Manholes and access covers – Enhancing security in public utility spaces.
• Industrial enclosures and secure facilities – Used in settings where vandalism or theft is a concern.

Material Options & Specifications

Penta bolts are available in various materials to suit different environmental conditions and durability requirements:

• Stainless Steel – Corrosion-resistant and ideal for outdoor and marine applications.
• Bronze & Brass – Excellent resistance to rust, often used in electrical and water utility industries.
• Low Carbon Steel – A cost-effective option for general applications requiring security fasteners.

Thread options include both standard threads and coil threads, ensuring compatibility with different fastening needs.

Available Sizes

Penta bolts are offered in multiple diameters to accommodate different security requirements:

• 3/8" diameter
• 1/2" diameter
• 5/8" diameter

Why Choose Penta Bolts?

• Enhanced Security – Their unique design prevents removal with common hand tools, reducing the risk of unauthorized access.
• Durability – Manufactured from high-quality materials for long-lasting performance in harsh environments.
• Industry-Trusted – Used by utility companies, municipalities, and industrial facilities worldwide.

Don't see your item? Don't see your size? We will custom manufacture penta head bolts to your exact specifications.