A6304 4-Way Multi-Directional Anchor Plate
The Malta Dynamics A6304 is a temporary, reusable multi-directional roof anchor that mounts flat to metal decking, plywood sheathing, or a concrete slab. Its four directional connection points let a worker detach and reattach to extend reach without ever being unprotected, and they double as carry handles so the plates nest together for hauling several at once.
The 12 x 12 inch powder-coated A-36 steel plate has a 5,000 lb minimum breaking strength and a 130 to 310 lb worker capacity. One anchor supports a single worker in fall arrest or two workers in fall restraint. It meets OSHA 1910, OSHA 1926 Subpart M, and ANSI A10.32-12, and ships with a Malta Dynamics Declaration of Conformity backed by independent ISO 17025 lab testing.
Who Needs This Product
The A6304 is a fastened anchorage connector - the tie-off point of a personal fall arrest or restraint system for crews on metal decks, wood-framed roofs, or concrete slabs. Each connected worker still needs an ANSI full-body harness and a compatible connecting device (a self-retracting lifeline or a 900 lb maximum-arrest-force energy-absorbing lanyard). One plate serves a single worker in fall arrest or two workers in fall restraint - never both modes at the same time.
Features
Four-way connection
Four directional connection points accept load from any direction, so a worker can detach and reattach to extend reach while staying tied off.
One plate, three substrates
Engineered fastener patterns for ribbed steel decking, plywood sheathing, and concrete slabs - one anchor covers the whole roof.
Arrest or restraint
Rated for one worker in fall arrest or two workers in fall restraint - pick the mode the job calls for.
Carry-and-nest design
The raised connection points double as handles, and the plates nest together so a crew can carry several anchors at once.
Powder-coated A-36 steel
A 1/4-inch A-36 steel plate with a powder-coated finish withstands repeated jobsite reuse.
Independently verified
Backed by a Malta Dynamics Declaration of Conformity with third-party testing performed under ISO 17025 accreditation.
Technical Specifications
| SKU | A6304 |
|---|---|
| Type | Multi-directional roof anchor plate, temporary and reusable |
| Users | 1 worker in fall arrest, or 2 workers in fall restraint (maximum 1 worker per plate in arrest) |
| Worker capacity | 130 to 310 lb per user, including tools and equipment |
| Minimum breaking strength | 5,000 lb |
| Base plate | 12 in x 12 in (304.8 mm) square |
| Plate thickness | 1/4 in A-36 steel |
| Material | Powder-coated A-36 steel |
| Connection points | 4 directional points (also serve as carry handles) |
| Substrates | Ribbed steel decking (22 ga minimum), plywood sheathing (17/32 in CDX minimum), or solid concrete slab |
| Fasteners - metal | 20 x #14-10, 2 in hex-head self-drilling metal screws (corrosion-resistant, not included) |
| Fasteners - wood | 20 x #14-10, 2 in hex-head wood screws (corrosion-resistant, not included) |
| Fasteners - concrete | 4 x 1/2 in concrete anchors, each rated for 2,000 lb tension and shear (not included) |
| Connector requirement | 900 lb maximum-arrest-force energy-absorbing lanyard or leading-edge SRL; ANSI full body harness |
| Operating temperature | -40 F to +130 F |
| Product weight | 12.4 lb |
| Compliance | OSHA 1910.66; OSHA 1926 Subpart M; ANSI A10.32-12 (manufacturer also states ANSI Z359.18-2017) |
| UPC | 852492006271 |
| Warranty | 1 year limited (Malta Dynamics) against factory defects in workmanship and materials |
Fasteners and structure carry the load. The A6304 is only as strong as what it is fastened to. Fill the complete fastener pattern for your substrate with corrosion-resistant fasteners; never reuse fasteners; and have a competent person verify that the structure can support a 5,000-lb anchorage load. Never mix arrest and restraint on one plate, and calculate fall clearance before tying off.
Compliance Standards
ANSI A10.32-12
ANSI/ASSP standard for fall protection systems used in construction and demolition operations.
ANSI Z359.18-2017
Anchorage connectors standard: the manufacturer states that the A6304 is designed and tested to this standard.
OSHA 29 CFR 1926 Subpart M
Construction fall protection, including anchorage strength requirements under 1926.502(d).
OSHA 29 CFR 1910.66
General industry personal fall arrest anchorage requirements.
Typical Applications
Installation Overview
Install per the Malta Dynamics user instruction manual. The sequence below is an overview only.
- Inspect. Check the plate, connection points, finish, and labels before each use.
- Verify structure. Confirm that the deck, sheathing, or slab can carry a 5,000-lb anchorage load, verified by a competent person.
- Position. Lay the plate flat at the location specified in the manual, with the connection points oriented at 45 degrees to the substrate.
- Fasten. Use the schedule for your substrate - 20 metal screws, 20 wood screws, or 4 concrete anchors - and fill every fastener hole. Use corrosion-resistant fasteners and never reuse them.
- Connect. Clip a 900 lb maximum-arrest-force energy-absorbing lanyard or leading-edge SRL and an ANSI full body harness to a connection point - one worker in arrest or up to two in restraint.
- Verify clearance. Confirm fall clearance below the work surface before work begins.
Inspection and Retirement
Inspect before each use, with a documented competent-person inspection at least every six months. Remove the anchor from service for any of the conditions below.
- Plate: bending, cracks, elongated fastener holes, or corrosion beyond surface discoloration.
- Connection points: deformation, nicks, burrs, or sharp edges.
- Fasteners: stripped, loose, missing, or corroded - re-fasten per the manual before use.
- Finish: deep gouges exposing bare steel to rust.
- Labels: must remain legible and intact.
Retirement triggers: any fall-arrest event, any plate or connection-point deformation, or any case where fasteners were not fully embedded, or the connection points were not at a 45-degree angle- both signal the anchor was exposed to a fall and must be retired.
Fall ProtectionDistributors, LLC Free Tool · No Signup · OSHA 1926.502 Free Interactive Tool Fall Protection Calculator Pick your system. Run the math. Generate a plan. 1Pick Your SystemDetermine fall restraint vs. fall arrest based on your work surface, edge access, and clearance. 2Run the MathCalculate exact fall clearance required below the work surface for your SRL or lanyard setup. 3Generate a PlanGet a printable OSHA-compliant Fall Protection Plan structured around 29 CFR 1926.502(k).
Frequently Asked Questions
Malta Dynamics A6304 Submittals and Documentation
A6304 Spec Sheet (PDF)Key features, capacity, materials, weight, and compliance summary. A6304 User Instruction Manual (PDF)Fastener schedules by substrate, installation, anchorage positioning, inspection, and warranty. A6304 Declaration of Conformity (PDF)OSHA-compliant conformity statement with ISO 17025 third-party test verification.Compatible and Related Products
- Frontline RO4W Multifunction 4-Way Anchor. A permanent-style 4-way anchor for metal, wood, and concrete.
- Malta C7050 50 ft Vertical Lifeline Assembly. Rope lifeline and rope grab to connect a harness to the anchor.
- Malta HLL3001 100 ft Horizontal Lifeline Kit. Four-worker rope HLL the A6304 can anchor per the manual.
- Malta B2002 Warthog Full Body Harness. ANSI full body harness to complete the personal fall arrest system.
Specifying Anchorage for Your Crew?
Need help specifying the right anchor and system for your jobsite? Confirm your substrate, anchorage load, and fall clearance with us and we will walk through the full kit list so the right equipment ships together.
Call 863-703-4522 to talk to a fall protection specialist.
