Custom Nickel Plated Socket Head Screws - 4340 Material

These custom nickel plated socket head screws were produced domestically using 4340 material instead of the originally requested 17-4PH version, with heat treatment to get the parts up to required 35-45 HRC hardness.  1/2-20 thread with 2A thread fit was incorporated with thread length of .77 inches.  Overall length underneath the head was set at 1.37" +.00/-.03".  The large .945" diameter head presented a challenge from the start for the cold heading operation - it took multiple sets of tooling and adjustments to finally get the head shape just right.

Custom Captive Shoulder Screws - Flat Socket Head In 302HQ DFARS Material

Slightly over 4,000 pieces of these custom captive shoulder screws were made domestically for our aerospace customer.  An MS24671-32 part made using 302HQ DFARS compliant material was used as a base part to create this final version.  Part of the 1/4-20 3A thread was turned down to a shoulder diameter of .175" +/-.005 and length of .339" +/- .015.  .375" of thread remained after the modification.  The resulting captive shoulder screws were then passivated per AMS QQ-P-35 and run through a thread lock patch process per MIL-F-18240.

Custom Aerospace Socket Head Cap Screws - 8-32 X 4.25" In 18-8 Stainless Steel Material

We supplied 54 pieces of these custom aerospace socket head cap screws to our long time customer.  They were made in the USA using 18-8 stainless steel material (no DFARS requirement on these) with a broached 9/64" hex socket drive with min .077" engagement depth.  1" of the overall 4.25" length under the head was threaded at 8-32.  Due to the smaller quantity required the thread was cut rather than rolled.  Material certs and a certificate of conformance was provided but no FAIR was required for this specific part.

Custom Slotted Fillister Screws - 303 Stainless Steel, DFARS Compliant

Custom slotted fillister screws we supplied to our aerospace customer at 100 pieces - ASTM A582 DFARS compliant 303 stainless steel material (Italy Melt) was used for the domestic manufacturing.  2-56 thread was incorporated at .25-.37" in length, with the overall length underneath the head at .625 +0/-.030".  The head height measures .070-.095" and the slot depth is set at .033-.043".  Head diameter was set between .145" and .161".  Full certs were provided with the parts per our customers usual requirements.

Custom 4140 Flat Socket Head Screws - Custom 1/4-28 X .595" Flat Socket Screws For Aerospace Applications

These custom 4140 flat socket head cap screws were produced domestically for our aerospace customer using AISI 4140 alloy steel material per AMS 6349.  Heat treat to 160-180 ksi per AMS 2759 was performed to finalize the production process.  Magnetic particle inspection per ASTM 1444 (Type I, Meth A, Sens Lev 3) was performed after the machining process was completed.  Lead time for this part varies significantly based on how busy the manufacturing and testing facilities are at the time of start.