Comprehensive Tightening Torque Reference Chart, SAE and Metric, 8 x 5.5 Inch, for Aviation Workshop, Toolbox, and Hangar Fastener Torque Reference
Over-torquing strips threads and damages fastener and component interfaces. Under-torquing leaves fasteners that will work loose under vibration and service loads. In aviation, neither outcome is acceptable, and the correct torque value for a specific fastener grade, diameter, and material combination is not something that should be recalled from memory or estimated. Supplied by JHEARs Aerospace, this comprehensive SAE and metric tightening torque reference chart gives mechanics and engineers immediate access to the correct torque values across a wide range of fastener grades, sizes, and material combinations without having to locate and consult a manual for every fastener torqued during a maintenance task.
Printed at 8 by 5.5 inches, the chart is sized to live in a toolbox lid, on a workbench, or pinned up in the hangar where it is accessible during the work rather than filed away where it is theoretically available but practically unused. For apprentice engineers building correct torquing habits from the start, and for experienced mechanics who want a reliable quick reference for the fastener grades they encounter less frequently, this chart provides the reference data in a format that is actually present at the point of use.
Spec: Tightening torque reference chart covering SAE and metric fastener grades and sizes. 8 x 5.5 inch format. Suitable for toolbox, workbench, and hangar wall reference use in aviation maintenance and engineering workshops.
Who this is for: Aircraft mechanics and A and P technicians who need a reliable fastener torque quick reference accessible during maintenance tasks without consulting full manuals, apprentice engineers and student mechanics building correct torquing practice habits from the outset of their maintenance training, and any aviation workshop where having the correct torque values immediately at hand at the bench reduces the risk of fastener over or under-torquing during routine work.
FAQ
Does this chart cover the AN and MS fastener grades used in aircraft maintenance?
The chart covers SAE fastener grades and metric property classes across a range of sizes. AN and MS fastener torque values for specific aircraft applications are specified in the aircraft maintenance manual and AC 43.13-1B, which remain the authoritative sources for torque values on certified aircraft. This chart is a practical general reference for standard fastener grades and should be used alongside, not as a replacement for, aircraft-specific maintenance documentation where applicable.
What fastener size range does the chart cover?
The chart covers a comprehensive range of SAE and metric fastener diameters across the common fastener grades encountered in aviation and engineering maintenance work. Verify the specific size and grade range against your typical fastener requirements to confirm coverage before purchase.
Is the chart laminated or printed on durable material for workshop use?
The durability of the chart material determines how well it holds up in a workshop environment where it will be handled regularly and exposed to oils, solvents, and general maintenance conditions. Verify the chart's construction and surface treatment if long-term workshop durability in a working maintenance environment is a specific requirement.
Why should I purchase my workshop reference materials from JHEARs Aerospace?
At JHEARs Aerospace, we supply practical maintenance reference materials and tooling aids selected for professional use in aviation maintenance environments. Having the right reference data immediately accessible at the bench is part of maintaining the standard of work that aircraft maintenance demands.
