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.

Custom Large Anchor Bolts - F1554 Grade 36 Material, Galvanized

These custom large anchor bolts were manufactured domestically using F1554 grade 36 material for the threaded anchors, F436 material for the washers, and A563 material for the nuts.  All parts were 2" in diameter with coarse thread, with galvanized finish.  The large anchor bolts measured 6 feet in overal length and each was provided with 5 heavy hex nuts and 3 washers.  Production was done with an expedited rush option to be completed within 7 business days.  Material certs were provided with the parts.

Custom Modified Grade 8 Machine Screws - Special Head Shape

These custom modified grade 8 machine screws were made using 5/16-18 X 1-1/4 Grade 8 hex head cap screws in grade 8 steel material with zinc/clear finish.  The head of each COTS part was machined to the shape seen here, with the head height at .190" +/-.005" and head diameter at .485" +/-.005".  Single flat .42" section was incorporated at one section per our customer's provided sample piece.  Total of 300 pieces were modified on this specific production run and the lead time was approximately 2 weeks from the order receipt.

Custom Double End Shoulder Studs - A193 B7 Material

These custom double end shoulder studs were manufactured domestically using B7 material with plain finish.  1" coarse thread was incorporated on one side at a length of 1-1/4".  1-5/8" of 3/4" coarse thread was cut on the other side of the stud, with the shoulder machined to a diameter of .75" +/- .01".  Overall length of the double ended stud is 4" +/-.01" and in plain finish this part can be produced relatively quick with a lead time of 2-4 weeks depending on the production volume required.  Material certs were provided with the parts per customer's requirements.

Custom Low Profile Socket Head Screws - 302 Stainless Steel With 6 Lobe Drive

These custom low profile socket head screws with a  6-lobe (torx) drive were manufactured domestically using 302 stainless steel material with a commercial passivated plain finish.  5,000 pieces of two sizes were produced: M10 - 1.5M X 65MM with a T-45 drive size and M8 - 1.25M X 65MM with a T-30 drive size.  26-30MM of thread was incorporated on the larger version and 22-25MM on the smaller diameter part.  The low profile & 6-lobe drive combination is relatively tricky, especially for these larger diameters as additional controls in tooling are required to avoid flowering on the outside profile of the head.

Custom Galvanized Anchor Bolts - A36 Steel, Galvanized

These custom galvanized anchor bolts were manufactured domestically with a rush timeline using A36 steel material with a galvanized finish.  7 inches of 1"-8 coarse thread was incorporate on the long leg, with cut thread as opposed to a rolled alternative.  Overall length was set at 17" and the length of the short leg on the outside is 3".  Two galvanized nuts and washers were supplied per anchor bolt.