Custom Automotive 12 Point Bolts - Grade 8

 

We had these custom automotive 12 point bolts manufactured for our aftermarket automotive customer in batches of 20,000-40,000 pieces using 4140 alloy steel material to Grade 8 specifications.  The bolts were finished with either Geomet or Zinc Aluminum and were combined with a Nitrile 70A o-ring to provide a "sealing" effect.  7/16-20 thread was rolled on the part and a .365" X .725" point was incorporated with .125" radius.  The 12 point flange head was cold formed to a height of .350".  Full certs were available with the parts and Level 3 PPAP as well.

Custom Automotive Ball Studs - 1215 Steel, Zinc Yellow

 We had 20,000 pieces of these custom automotive ball studs produced in 1215 steel material with heat treat hardening to 25-34 HRC and zinc yellow finish.  The across the flats dimension on this ball stad was relatively large compared with the .25" ball diameter, measuring .437 +/-.01".  Overall length measured .950" with the 1/4-28 thread taking up approximately .423".  

Custom Grade 5 Automotive Screws - Tricky 1/4-32 Thread With Nylon Thread Locking Patch

These custom grade 5 automotive screws are exactly the same dimensionally as the 1/4-28 version shown in one of the previous posts but with two specific distinctions: the thread had to be 1/4-32 instead for this 2,500 pcs batch and the lead time had to be FAST.  To accomplish this the hex socket drive was broached instead of cold heading, the marks of which you can see at the very bottom of the hex recess.  That allowed us to save weeks of lead time and we also expedited the thread lock application process as well as all the transit in between processes.  Level III PPAP paperwork is provided with the parts per our customers original request and requirement.

Custom Automotive Hardware - Regulator Vented Plug In Grade 5 Material With Level III PPAP

These custom regulator vented plugs are a perfect example of the large number of custom automotive hardware components we supply our customer base.  We worked with the customer through a number of design iterations to forgo an initial design that included a brazed component and instead go towards a design shown here with a vented hole.  The socket recess provided another challenge - going with a broached alternative would provide a better cost profile but add risk of excess material affecting the vented hole.  Instead we decided to take on the additional cost and run a cold headed process for the recess, providing a clean look and application to the part.

Custom Automotive Flat Socket Machine Screw - 1/4-28 X 1/2 In Grade 5 Steel Material With Thread Lock Patch & Level III PPAP

These are custom automotive flat socket machine screws we supply our aftermarket automotive OEM customer.  Parts are manufactured domestically with production runs of 5,000 pcs and lead time of approximately 8-10 weeks.  Cold headed 5/32 hex drive is incorporated with fully threaded 1/4-28 body and 60 degree countersink angle.  3/32 of hex key engagement is required and nylon thread lock patch is added to finalize the parts.  Level III PPAP was provided to the customer with the parts.