5 each National Aerospace Standards NAS148DH-56 Internal Wrenching Six-point Allen Head Bolts in new surplus condition. They are 1/2" Diameter with 20 TPI and have a 1/2" Internal Wrenching hex socket head, are 3-1/2” Long with a 2-11/16” Grip Length and have a drilled head.

Buyer is responsible to make sure that this part will work for their application as there is no warranty or guarantee expressed or implied.

Please Note: Shipping charges are not refundable. Items are subject to a 20% re-stocking fee, on a case to case basis. If you purchase more then one item please wait for an invoice with a combined reduced shipping rate. 

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