Ultimate Fall Protection with the Malta Dynamics A6305 12-inch Threaded Top Roof Anchor
The Malta Dynamics A6305 12-inch Threaded Top Roof Anchor is a fixed post roof anchor designed for permanent installation on steel and concrete substrates. This 12-inch threaded top anchor post fastens through roofing materials, providing a secure and accessible attachment point during and after roof construction. Thoroughly tested and compliant with OSHA, ANSI, and IWCA standards, the A6305 offers a versatile and reliable solution for safety applications, including use with self-retracting lifelines (SRLs), vertical lifelines, and shock-absorbing lanyards.
Looking for the taller version? The Malta Dynamics A6306 Threaded Roof Anchor provides the same 5,000-lb protection with an 18-inch post for thicker insulation. For non-threaded standard eyelet anchors, see the Malta Dynamics 12-inch A6300 Anchor.
Durable Threaded Top Construction for Versatile Safety Applications
The galvanized steel Malta Dynamics A6305 is engineered to withstand harsh environmental conditions while providing life-of-the-building durability. This anchor features a 1/2″-13 threaded top, allowing for the direct attachment of swivel D-rings or horizontal lifeline components (sold separately). This threaded design makes the A6305 a top choice for engineered systems where a standard eyelet post may not provide the necessary mechanical interface.
Certified Performance on Steel and Concrete Substrates
The A6305 is a professional-grade anchor post that extends beyond the roofing substrate, ensuring the attachment point is always accessible for maintenance. Its round-post profile is compatible with standard pipe flashing kits, ensuring a watertight, leak-free installation. Refer to the specific fastener requirements for concrete and steel in the technical documentation below.
Malta Dynamics A6305 Technical Submittal Data & Compliance Docs:
Download the official engineering and compliance documentation for the A6305 12-inch Threaded Top Anchor:
- Malta Dynamics A6305 Anchor Instruction Manual – Detailed substrate fastening and setup guide.
- Malta Dynamics A6305 Technical Spec Sheet & Submittal Data – Dimensional drawings and 1/2″-13 thread details.
- OSHA Roof Anchor Inspection Form – Essential interactive form for mandatory annual inspections.
Malta Dynamics A6305 Threaded Top Anchor FAQ
1. What is the difference between the A6305 and the standard A6300?
The Malta Dynamics A6300 has a built-in permanent eyelet at the top. The A6305 features a 1/2″-13 threaded hole at the top. This allows you to bolt on a swivel D-ring or utilize the post as a base for a permanent horizontal lifeline system.
2. Does the A6305 include the D-ring?
No. The D-ring and the 1/2″-13 hex bolt required for attachment are sold separately. This modular design allows engineers to choose the specific swivel or HLL hardware that fits their project requirements.
3. Can this be installed on a wood substrate?
The A6305 is primarily engineered and tested for structural steel and concrete. While some rigid post anchors can be adapted for wood with specialized backer plates, you must consult the A6305 Anchor Instruction Manual above or a qualified engineer to ensure the 5,000-lb load rating is maintained on wood.
4. What size bolt is needed for the top thread?
The internal threads are 1/2″-13. You should always use a Grade 5 or higher bolt with appropriate thread engagement as specified in your safety system design.
5. Is this anchor suitable for window washing?
Yes, when paired with the proper swivel D-ring, the A6305 meets the IWCA I-14.1 requirements for window cleaning safety, providing a permanent and highly durable tie-off point.
6. What type of flashing is required?
Because the post is a standard round 2.375″ OD pipe, it is compatible with most off-the-shelf "cone" or "deck-flange" flashing kits. This makes it very easy for roofing contractors to seal regardless of the membrane type (TPO, EPDM, etc.).
7. How do I avoid common installation mistakes with the A6305?
- 1. Improper Fastener Torque: Always use a calibrated torque wrench when mounting the base plate to concrete or steel as specified in the manual.
- 2. Thread Damage: Protect the top internal threads during the roofing process. If bitumen or debris clogs the threads, it can prevent proper bolt engagement.
- 3. Low Clearance: Ensure the 12-inch height is sufficient to clear your insulation. If the top of the post is flush with the roof, you won't be able to flash it or attach your safety gear.
