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You can shop for these six lobe screws, Torx Screws by clicking on any of the pictures above
or Search Our Store for a specific fastener item or
Browse Our Store catalog index.
Six Lobe Screws with Torx Drive are unique and very efficient.
Let Aaron's web site stores be your single source for Aerospace and Military fasteners (sujetadores).
We have dedicated this store just for Six Lobe users. In this regard we have provided a page on
this web site where you can go to find more information about Six Lobe Screws. It will be updated frequently to respond to questions
that we receive as the web site matures. It is the only place, on
the web or off of the web, where all of your screw requirements can be met. If
we do not have it in inventory when you place your order, we will get it and
guarantee you that we will have it in inventory the next time you order that
item.
We currently have over 2,146 different
sizes of 100 degree, flat head screws which are 8740 (UNS G87400) alloy steel in
accordance with AMS 6322
These Alloy Steel Six Lobe Screws come Cadmium Plated, Flat
Head, 100 Degrees, UNJC and UNJF threads.
All credit cards are accepted. If you need a quote
by e-mail,
Click Here. These
fasteners are normally sold in quantities of 10, 100, 1,000 (or multiples
thereof) but discounts are given for full carton orders. You may find that a
carton order has the same or more pieces in the carton than an order for 100 or
1,000 and yet has a lower price. Because we are a volume warehouse supplier, we
reward customers for volume business. Our web store prices are approximately 20%
lower than our street prices at our physical stores.
Shipping charges are calculated automatically
while you are in the buying process. After you press the "Checkout" button a new
screen will ask for shipping method, billing address and shipping address. If
you are in California, there will be an automatic sales tax added unless you
complete the tax exempt window in the shopping cart. In addition there will be a
$6.50 handling charge added to all orders when the shipment is freight collect.
If you should want to try different shipping methods to get the one best suited
for you, simply click the "Back" button on your browser, change the shipping
method and click on "Continue". If you want to try still another shipping
method, simply repeat this procedure.
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NAS 514 vs NAS 517
These six lobe screws on this web site meet the
general requirements of the
NAS 514 and NAS 517 specification with the only difference being the
drive system is Torx® or Six Lobe instead of CrossRecess/Phillips. The
NAS 514 is called a tension screw, is full thread and is heat
treated to 125 - 145 KSI tensile strength in accordance with
MIL-H-6875. The NAS 517 is called a shear screw, is partial thread
and is heat treated to 160 - 180 KSI in accordance with AMS2759. The portion of the NAS 517 screw that is unthreaded is called the GRIP
LENGTH and is measured from the top of the head to the start of
threads. The Grip Body Diameter is critical on this screw and we
have attached a table of this requirement (click
here). We have also attached a table of GRIP LENGTHS for all the NAS
517 screws. To access this table of grip lengths, please (click
here).
Both screws are Cadmium
Plated but because of the hardness after heat treating, the NAS 514
is Cadmium Plated to spec QQ-P-416 Type I (Silver Color), Class 2
which requires no special pre or post baking to prevent hydrogen
embrittlement. But, the NAS 517 after heat treating is much harder
and therefore requires special pre and post baking when Cadmium
plated to prevent hydrogen embrittlement. The NAS 517 is Cadmium
Plated per AMS QQ-P-416 Type II, (Yellow Color), Class 2.
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