3/16” x 1-3/32” Small Shackle Lock Pin | Safety & Rigging Hardware

The 3/16" x 1-3/32" Small Shackle Lock Pin is a precision-engineered retention component critical for securing small shackles, clevises, safety cables, and valve lockout chains across the well pad and flowback site. In high-vibration oilfield environments, standard retaining pins can easily rattle loose over time, leading to dropped objects, disconnected instrumentation, or the failure of secondary safety restraints. This durable locking pin is specifically designed to provide a fail-safe, positive lock, ensuring your rigging and safety systems remain completely intact during heavy pumping and fluid transfer operations.

Forged from high-strength steel and treated for extreme environments, this locking pin delivers exceptional shear strength despite its compact size. It is purpose-built to withstand sudden mechanical shocks when used on high-pressure hose whip checks or instrument tethers. The specialized locking design prevents accidental back-out or loosening, giving safety managers and field mechanics peace of mind when securing overhead components or critical valve lockout/tagout (LOTO) chains.

Designed with precise dimensional tolerances (3/16” diameter by 1-3/32” usable length), it provides a snug, secure fit in standard small-bore shackles. Whether you are outfitting a mobile flowback trailer or conducting routine safety audits on the rig floor, this small but mighty hardware component is essential for maintaining a hazard-free worksite.

Features & Benefits

• Exact Dimensional Fit: Precision-machined 3/16" diameter and 1-3/32" length ensures a snug, wobble-free fit in compatible shackles and clevises.

• Positive Locking Design: Engineered to prevent accidental back-out caused by the relentless mechanical vibration of high-pressure pumps and flowlines.

• High Shear Strength: Forged to withstand sudden shock loads, ensuring that whip checks and safety tethers hold firm during pressure anomalies.

• Corrosion Resistance: Plated and treated to aggressively resist rust, oxidation, and degradation from saltwater brines, crude oil, and drilling muds.

• Fast Field Deployment: Designed for quick, tool-free installation and removal by field hands, accelerating rig-up and safety tagging procedures.

Specifications & Technical Details

Applications

This small shackle lock pin is universally deployed for light-duty rigging and safety compliance in the oilfield. It is heavily utilized for securing whip checks on high-pressure rotary hoses, fastening lockout/tagout (LOTO) chains around flowline plug valves, tethering expensive flowmeters and sensors to the iron to prevent dropped objects, and general utility fastening on the rig floor.

Quality Assurance

Each pin is manufactured to strict dimensional tolerances to guarantee compatibility with standard 3/16" rigging hardware. Batches are rigorously tested for shear strength limit and salt-spray corrosion resistance, ensuring the hardware will not fail or rust shut when exposed to harsh marine or oilfield environments.

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