Custom Stainless Steel Socket Shoulder Bolts

 

These custom stainless steel socket shoulder bolts were manufactured using 18-8 stainless steel material with factory passivation finish.  The head was fully cold formed, which took multiple tooling iterations to get just right.  1/4-20 2A thread was rolled at a length of .575" underneath the .305-.311" diameter shoulder.  A .190" across the flats hex socket drive was incorporated at a depth of .120" min.  Certs were made available to our customer's specifications.

Custom 6-Lobe (Torx Alternative) Shoulder Screws in 416 Stainless Steel

 

We had these custom 6-lobe shoulder screws manufactured in 416 stainless steel in the USA for our electronics customer.  DFARS compliant material was used and the parts were heat treated to achieve 26-32 RC.  The 6-lobe drive (T10 size) was made using a combination of broaching and punch, allowing us to bypass cold forming that carries a much longer lead time in our current conditions.  The shoulder measures .13" X .500" in length and the threaded portion is #4-40 with a minimal undercut.  Full certs were included with the parts per our customers requirements.

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.