MT-LPS-MAR / CUSTOM SHEAR LOAD PINS
Marine Rigging & Yacht Stay Load Pins
Specify a load sensing pin for a forestay, backstay or marine rigging joint. Share the existing Harken-style pin drawing and instrument details for an independent replacement assessment.
Ranges describe a custom family envelope. Diameter and capacity are not freely interchangeable; each combination requires mechanical and calibration review.
JOINT-SPECIFIC DECISION POINTS
Check the contact geometry before the capacity.
- Stay terminal, toggle and clevis geometry, articulation and cable strain relief.
- 17-4PH strength versus 316L corrosion considerations for the actual joint.
- Immersion depth, duration, salt exposure and wireless antenna location above water.
Where this pin belongs
Yacht rig tuning · forestay and backstay tension · marine towing measurements
What the review returns
Joint-specific material/sealing proposal and readout/interface compatibility checklist.
LOAD-PATH DETAILS
Preserve orientation. Qualify the measurement.
IP68 needs an agreed depth and duration; it is not an unlimited subsea rating. Bluetooth radio links need an above-water path. NMEA 2000 connectivity requires a defined interface or gateway, data mapping and compatibility review.
For a Harken load cell replacement, provide the existing pin drawing and the instrument model. Our marine rigging load pin review covers mechanical fit and the complete readout interface.
From the blank pin to a calibrated channel
Request material/heat-treatment identification, dimensional inspection of the bore fit and groove locations, insulation checks, and calibration over the agreed load range using representative support geometry. State proof load, combined error, temperature and traceability requirements in the RFQ.
Define acceptance before manufacture.
The quote should identify the approved drawing, rated force direction, overload limits, calibration method, environmental test scope and output scaling. Certificates or lifting approvals are supplied only when explicitly included and verified for the assembly.
Match outputs & readouts ↗THE FIVE-DIMENSION BRIEF
Your existing pin is the starting point.
Measure D / L / A / B / C or attach a sketch. We review the joint, load cases and interfaces before releasing a drawing or quotation.
- D
- Pin diameter and fit
- L
- Overall loaded length
- A
- Center loading tongue width
- B
- Each outer clevis lug width
- C
- Shear-groove center spacing
L describes the loaded span here. Include the overall end-to-end length, asymmetric lugs, spacers and retention details in your drawing or notes. Five values start the review; they do not fully define a production pin.
Download sizing sheet ↓
Compare the other load paths.
Clevis pins↗
Hydraulic cylinder eyes · agricultural equipment · automation clevis joints
Winch & sheave↗
Mooring winches · crane sheaves · cable-laying equipment · mining hoists
Marine rigging↗
Yacht rig tuning · forestay and backstay tension · marine towing measurements
Dual-axis & subsea↗
Articulating heavy joints · variable-angle sheaves · subsea machinery
Lifting shackles↗
Suspended-load monitoring · rigging test equipment · stage truss monitoring