Aircraft Spruce Australia
Melbourne, VIC Australia
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AN Bolt Drilled Head AN6H-7A
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Overview
| Hex head aircraft bolts are made of high-strength type 4037 or 8740 alloy steel (type 8740 is most commonly used). The bolts are center-less ground and threaded after heat treatment. Minimum tensile strength 125,000 PSI. Cadmium plated per specification QQ-P-416A, Type II, Class 3. Available with shank drilled for cotter pin or undrilled for stop nut application, & with or without drilled head for safety wire. Specify bolts to have undrilled shank by adding letter "A" after dash number. For bolts with drilled head add letter "H" after AN number. See illustrated examples. The length of AN aircraft bolts is measured from under the head to the end of the shank. The "grip" is the unthreaded portion of the shank. See table for conversion of length and/or grip to proper AN call-out. |
Drawing
Reference Chart
Reviews
Prop bolts for my airboat.
Aircraft Spruce is always a constant, and reliable source for what I need. Products are always of good quality. Shipping, well, I’m sure Aircraft Spruce has little latitude in that area.
Was able to pick the bolts I needed, showed up perfect!
These are the prettiest AN6H-6A Bolts I have ever seen.
Good quality
I used these in a Dana 41 Jeep reared to secure. the ring gear to the carrier. These ring gear are known to work loose, so I used Locktite on them and safety wire through the heads. Worked fantastic.
Exactly what I wanted delivered promptly.
Bolts arrived on time.
I am very happy to get the 8 bolts ,only wish they could have been in stock in Ontario. Still good service.
The bolts are fine but is there any way to improve turnaround time? It took 2 1/2 weeks between order and arrival?
Q&A
Please note, Aircraft Spruce Australia's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Australia assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.
The max is .374", and min .371"
It depends on the application, but both .032 and .041 will fit through the hole.
Per the Tech Data Sheet, the hole location is determined from the start of the threads, on the head side, to the center of the drilled hole. AN3 = 17/64", AN4 = 5/16", AN5 = 23/64", AN6 = 7/16", AN7 = 31/64", AN8 = 39/64".
Stainless bolts are corrosion resistant for applications where corrosion is a problem. CAD plated bolts are made of steel with CAD plating to help surface corrosion, but it can been worn or chipped off.
The nominal length is the length from under the head to the end of the shank.
We do offer all of the types shown, but unfortunately not in every size. For example, drilled head is not available in AN4-3 stainless, but is available in AN5-4 cadmium.
It is drilled for 1/16" cotter pin so it will be slightly larger than 1/16".
1/4
The grip length is the unthreaded portion on the bolt.