Custom Vented A354 BD Socket Head Screws With Drilled Hole

 

These custom vented socket head screws were manufactured for our aerospace customer using A354 Grade BD material with MIL-DTL-13924 black oxide finish.  5/16-24 UNF was rolled to a length of .625 inches and the head was cold formed with drawing specified markings.  A hole was drilled through to vent the parts at a diameter of .152 +.004/-.001" and a .063" hole was drilled across the thread.  The drilled holes created burrs, especially at the drilled hole area on at the threaded end, which made these parts very tricky and time consuming to get perfectly right.

Custom Flat Head Breakaway Screws

 

These custom breakaway screws are manufactured domestically in the USA for our aerospace customer using 303 stainless steel material with zinc nickel plating and black topcoat.  Threebond thread locking patch is applied on the flat head screw to complete the parts.  The breakaway section also incorporates a hex socket recess drive to allow for faster and easier assembly.  The cosmetic finish on the parts is not perfect due to the top coat getting nicked during the transport and patch application process.  The high level of corrosion resistance however and mechanical properties are unaffected.

Custom Aluminum Button Socket Vented Screws

 

These custom vented button head screws were manufactured for our automotive trailer manufacturing customer using 6061 aluminum material with 10-32 cut thread measuring .313 inches in length below the head.  Certs were included with the parts.