Custom 17-4PH Double Shoulder Bolts - Hex Socket Drive With 5/16-24 Thread

We supplied our aerospace customer 200 pieces of these custom 17-4PH double shoulder bolts. 17-4 PH material heat treated to condition H1100 was used for the domestic production of these parts, with resulting hardness between 34 and 36 HRC. Passivation per QQ-P-35 was performed to complete the production process. The hex socket drive was cold headed and the 5/16-24 thread rolled per customer requirements. Full certs were provided with the shipments.

Custom 316 Stainless Steel Shoulder Screws - 4-40 X 1

We had a small batch of these custom 316 stainless steel shoulder screws produced domestically for our electronics OEM customer. Partial 4-40 thread was incorporated, with a machined shoulder incorporated per our customer specifications. Due to the smaller quantity involved the hex socket drive was broached rather than cold headed - you can see the slight rough nature of the drive when zooming into the photo. The lead time for these parts was relatively fast, with 2-3 weeks for production.

Custom Slotted Round Metric Screws - M7 X 1.0 X 34.5MM In Mild Steel With Black Oxide

These custom slotted round metric screws were manufactured using a cold heading process mild steel material, finished with a black oxide treatment. 90-92 degree angle was incorporated underneath the head, which had an outside diameter of 13.37MM-13.80MM and overall height of 5.15MM max inclusive of the undercut portion. Full M7 X 1.0M thread was rolled to a 6G thread fit. The slotted drive was designed to 1.81MM-2.06MM width and depth of 2.5MM at minimum. Our internal part number for this custom metric machine screw is MMSO-07035-F.

Custom Cone Point Screws - 8-32 Slotted Machine Screw In 18-8 Stainless Steel

These custom cone point screws were manufactured using 304 stainless steel material with plain finish.  8-32 fine thread was incorporated with the overall length of the threaded portion and the cone point set at .2925"-.3125".  The head diameter was .306"-.322" and slot depth at .045"-.058".  Head height was set at .085"-.096".  Production was completed at just over 13,000 pieces within 8 weeks from order.

Custom Long 316 Stainless Steel Screws - 8-32 X 3 Socket Head Cap Screws

These are custom long 316 stainless steel screws at 8-32 X 3 in dimensions, manufactured domestically at a small batch of approximately 40 pieces.  The parts were completed in a relatively quick turnaround time-frame of approximately 4 weeks from order, especially considering the holiday timing.  To allow for the small quantity and speed the hex socket drive was broached instead of using a cold headed approach.  You can see evidence of this at the inside of the recess drive where you would see machining marks instead of the typical clean concave interior seen in cold headed parts.  The partial thread was also cut rather than rolled to allow for the short production run option.

Custom 316 Stainless Steel Socket Head Screws

These are custom 316 stainless steel socket head cap screws at 10-32 X 1/2 and 10-32 X 3/8 in dimensions, manufactured domestically at a small batch of approximately 100 pieces.  The parts were completed in a relatively quick turnaround time-frame of approximately 4 weeks from order, especially considering the holiday timing.  To allow for the small quantity and speed the hex socket drive was broached instead of using a cold headed approach.  You can see evidence of this at the inside of the recess drive where you would see machining marks instead of the typical clean concave interior seen in cold headed parts.

Custom Stainless Binding Posts - Painted & In Black Oxide

These custom stainless binding posts were manufactured domestically to our customer's drawing using 18-8 stainless steel material.  8-32 female thread is incorporated with the shoulder diameter at .250" and shoulder length at .250" as well.  The dome head was made to a diameter of .406" and head height of .060".  For the final application we provided this part with both custom painted heads to match the color and also with black oxide finish.

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 Flat Socket Head Screws - 302 Stainless Steel Material

These custom flat socket head screws were manufactured domestically at 20,000 pieces in the 1.695" overall length and the same quantity in 1.29" overall length.  302 stainless steel material was used with plain passivated finish.  Head diameter was .375" and head height at .097", with a 90 degree countersunk base.  Partial thread of .75" was rolled for both length variations.  Material certs and certificate of conformance was provided with the parts.