P-00041-1 MD Post I-Beam Clamp Stanchion
The Malta Dynamics P-00041-1 is the steel I-beam version of the MD Post safety stanchion. It clamps tool-free onto a structural steel I-beam, giving a crew a temporary tie-off point at height before flooring, decking, or permanent fall protection is in place. Each post is sold individually and is the foundation post for a Malta Dynamics temporary horizontal lifeline system.
Two stanchions span up to 60 feet of cable to build a two-worker horizontal lifeline, or a single post can serve as a direct tie-off for up to two workers using self-retracting lifelines. The clamp fits flange thicknesses from 1/2 inch to 2-1/4 inch and flange widths from 8 inch to 22 inch, sets up without tools, and meets OSHA 1926 Subpart M.

Who Needs This Product
The P-00041-1 is an anchorage stanchion for crews working on structural steel before a deck or permanent fall protection exists - steel erectors, metal building crews, and bridge or industrial workers tying off to I-beams. It is the I-beam clamp post in the Malta Dynamics MD Post horizontal lifeline family. Personal fall protection never attaches to the stanchion directly. Each worker ties off to the horizontal lifeline cable assembly between two posts, or to a self-retracting lifeline rigged to the post, while wearing an ANSI full body harness.
Features
Tool-free I-beam clamp
Clamps directly onto a structural steel I-beam with no drilling and no fasteners, so a crew can set the post in minutes and relocate it as the work moves.
Wide flange range
Fits flange thicknesses from 1/2 inch to 2-1/4 inch and flange widths from 8 inch to 22 inch, covering most common structural beam sizes.
Anchor post or lifeline post
Use one post as a direct tie-off for up to two workers on self-retracting lifelines, or pair two posts to build a horizontal lifeline up to 60 feet.
Two-worker rated system
A complete two-post system safely accommodates a maximum of two workers, each up to 310 lb including tools and equipment.
Powder-coated steel build
An A-36 steel base and 2-1/2 inch Schedule 40 steel tube with a powder-coat finish stand up to repeated jobsite reuse.
Sold individually
Each MD Post ships as a single stanchion so you order exactly the post count your span and layout require.
Technical Specifications
| SKU | P-00041-1 |
|---|---|
| Product | MD Post stanchion for steel I-beams (I-beam clamp version) |
| Mounting | Tool-free clamp onto structural steel I-beam |
| Fits flange thickness | 1/2 in to 2-1/4 in |
| Fits flange width | 8 in to 22 in |
| Use | Single-post direct tie-off, or end and center post of a horizontal lifeline system |
| Maximum lifeline span | Up to 60 ft between stanchions |
| System capacity | Maximum 2 workers per system, 310 lb each including tools and equipment |
| SRL requirement | When used with an SRL, the SRL must limit maximum arrest force to 1,350 lb or less |
| Base material | A-36 steel, powder-coated |
| Tube | 2-1/2 in Schedule 40 steel, powder-coated |
| Connector requirement | ANSI full body harness with a shock-absorbing lanyard or self-retracting lifeline |
| Sold as | 1 each (individual post) |
| Product weight | 20 lb (9,072 g) |
| Compliance | OSHA 1926 Subpart M; system tested to ANSI Z359.1 |
| Manufactured by | Safe Approach, Inc. for Malta Dynamics |
| Warranty | 1 year limited (Malta Dynamics) against defects in material and workmanship |
Never tie off directly to the stanchion. Personal fall protection attaches only to the horizontal lifeline cable assembly or to a self-retracting lifeline rigged per the manual - never to the post itself. Verify the I-beam and clamp engagement with a competent person, never exceed two workers per system, and calculate fall clearance before tying off. A 60 foot system can let a fallen worker drop as much as 15 feet below work level.
Compliance Standards
OSHA 29 CFR 1926 Subpart M
Construction fall protection, including the anchorage and horizontal lifeline requirements under 1926.502(d).
ANSI Z359.1
Fall protection code the MD Post horizontal lifeline system is tested to as a complete assembly.
Two-Worker System Limit
A maximum of two workers may use one MD Post horizontal lifeline or extender system at a time.
SRL Arrest Force Limit
When used with a self-retracting lifeline, the SRL must limit maximum arrest force to 1,350 lb or less.
Typical Applications
Installation Overview
Install per the Malta Dynamics MD Post horizontal lifeline system manual. The sequence below is an overview only.
- Inspect. Check each stanchion, clamp, and cable assembly for shipping or prior-use damage before installation.
- Verify structure. Confirm the I-beam and supporting structure can carry the system loads, verified by a competent or qualified person.
- Clamp the posts. Engage the tool-free clamp on a beam flange within the 1/2 to 2-1/4 inch thickness and 8 to 22 inch width range, and seat it fully.
- Rig the lifeline. Connect the energy absorber end of each horizontal lifeline assembly to the center post and the clamp and thimble end to each end post, securing every shackle with the nut and cotter pin.
- Tension the cable. Pretension the cable at the turnbuckle to the manual's sag chart - 5 to 6 inch sag on a 41 to 60 foot span.
- Verify clearance. Confirm fall clearance below the work surface before any worker ties off.
Inspection and Retirement
Inspect before each use, and walk the installed line weekly applying moderate lateral pressure by hand. Re-torque any loose mounting hardware. Remove the system from service for any of the conditions below.
- Stanchion: bending, cracks, corrosion, or a clamp that will not seat fully on the flange.
- Energy absorber: any elongation showing black beyond the white band - the absorber is single use and must be replaced.
- Cable and hardware: kinks, broken wires, corrosion, or damaged shackles, thimbles, or turnbuckle.
- Loose mounting: re-torque per the manual before returning to service.
- Labels: must remain legible and intact.
Retirement trigger: after any fall-arrest event the system must not be used again until carefully inspected, and any deployed energy absorber must be retired and replaced.
Frequently Asked Questions
Malta Dynamics P-00041-1 Submittals and Documentation
MD Post HLL System Manual (PDF)Installation instructions, stanchion and cable assembly specifications, tensioning chart, inspection, and warranty.Compatible and Related Products
- Malta P-00147-60 60 ft Horizontal Lifeline Cable Assembly. The energy-absorbing cable that spans between two MD Posts to complete the system.
- Malta P-00041-10 Concrete Bolt-On Stanchion. The bolt-on MD Post version for concrete or steel structures.
- Malta P-00149-3 Intermediate By-Pass Adaptor. Adds an intermediate post so workers pass without disconnecting.
- Malta B2002 Warthog Full Body Harness. ANSI full body harness each worker wears on the lifeline.
- Malta C7002-G2 Warthog 50 ft SRL. Self-retracting lifeline for single-post direct tie-off.
Specifying a Horizontal Lifeline for Your Crew?
Need help specifying the right MD Post count, span, and cable assembly for your steel? Confirm your beam sizes, worker count, and fall clearance with us and we will walk through the full system list so the right equipment ships together.
Call 863-703-4522 to talk to a fall protection specialist.
