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BOLT UNDRILLED AN3-7A
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| Dash No. | Nominal Length | Grip Length |
|---|---|---|
| -7 | 29/32 | 1/2 |
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 centerless 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, and with or without drilled head for safety wire. Specify bolts to have undrilled shank by adding letter "A" after the dash number. For bolts with drilled head add letter "H" after the AN number. (AN3H-15) See illustrated examples. "C" represents Type 431 Stainless Steel (contains iron which is magnetic). 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 callout. "C" stands for stainless. Others are cadmium plated.
15% discount on qty of 50-99 20% discount on qty of 100+ Note: Drilled bolts listed above are drilled shank only. To order drilled head only or both drilled head and shank bolts, please use our AN Bolt Selector by clicking the link below. Click here for the AN Bolt Selector |
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WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov. |
Reference Chart
Reviews
Good
Verified Purchase
BOLT UNDRILLED AN3-7A (PACK OF 25)
Standard AN parts. Always quality.
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BOLT UNDRILLED AN3-7A
exactly as advertised in the catalog and very reasonably priced. telephone call service was very knowledgeable in the product details.
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BOLT UNDRILLED AN3-7A
Verified Purchase
BOLT UNDRILLED AN3-7A (PACK OF 25)
Verified Purchase
BOLT UNDRILLED AN3-7A
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Verified Purchase
BOLT UNDRILLED AN3-7A
Verified Purchase
BOLT UNDRILLED AN3-7A
Verified Purchase
BOLT UNDRILLED AN3-7A (PACK OF 25)
Verified Purchase
BOLT UNDRILLED AN3-7A (PACK OF 25)
Great products/company shipping is high!!!
Verified Purchase
BOLT UNDRILLED AN3-7A
Q&A
Please note, Aircraft Spruce'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 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"
The chart online only offers the bolts with drilled or undrilled shank in both stainless and cadmium. If you wish to order drilled head, you will need to either use the "AN Bolt Selector" which can be foundby searching that phrase on our site, or using the "Order By Part Number" link near the "Cart" icon on each page.
AN3 bolts use AN365-1032A (Cad Plated) or AN365C-1032 (Stainless) for locknuts and AN310-3 for castle nuts.
The tech data sheet does not list a separate tensile strength for corrosion-resistant steel bolts. That would indicate they would be rated the same per the TDS.
The discount schedule for large quantities are: 50-100 = 15% / 100+ = 20%. Package quantities are usually 25 but we can sort them however you prefer as long as you mention it in special instructions at checkout.
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.
