Custom Torx Drive 416 Stainless Flat Socket Head Gun Production Bolts

 

We provided our gun manufacturing customer these custom torx drive socket head bolts per print using 416 stainless steel material heat treated to HRC 36-44.  Approximately 13.8MM of 1/4-28 2A thread was rolled on both the 34.31MM and 43.61MM overall length version we had manufactured and the unthreaded shoulder diameter was set to 6.35MM +.00/-.22MM.  The head profile and countersink was customized to our customer's specifications.

Custom 360 Brass Alloy Precision Machined Spacers

 

These custom precision machined spacers were manufactured for our electronics customer using 360 Brass Alloy material per QQ-B-626.  The small diameter extension pin had the tightest tolerance measuring .038" +.000/-.002" while the main body diameter was set to .125" +/- .002".  Overall length of the spacer is set to .234".  Full certs were provided with the parts.  

Custom Spinning Flange Nylon Insert Lock Nuts

 

These custom spinning flange nylon insert lock nuts were manufactured to our aerospace/defense customer's dimensional requirements and Class 10 specifications with black zinc nickel finish.  The combination of free spinning flange washer and nylon insert was the trickiest part of these M12 X 1.75 custom lock nuts - typically you either have one feature or the other.  Full certs were provided with the parts.

Custom Brass Precision Machined Electronics Components

 

These custom precision machined electronics parts were manufactured for our customer using 360 Brass Alloy material.  All production was done domestically in the USA with full certs.  The larger OD was set to .280" +/-.005" and the smaller OD was set to .250" with the same tolerance.  Overall thickness was set to .050".

Custom Automotive Hex Flange Bolts

 

These custom long automotive hex flange bolts were manufactured for our customer to Grade 10.9 specifications with black zinc finish.  100MM of M13-1.75MM thread was rolled behind a 84MM unthreaded shoulder.  The flange diameter was set to 50MM and the hex above to 19MM across the flats.  Black zinc finish is good for corrosion resistance but is always cosmetically tricky due to the imperfections you get on the surface from the bake process, as well as the tumbling of large parts during packaging and transport.  

Custom Tapered Shoulder Socket Head Bolts

 

These custom tapered shoulder socket head bolts were manufactured using 4140 alloy steel material with 28-32 HRC hardness and zinc clear finish.  The shoulder diameter tapers form 0.78" down to 0.75" and the head diameter was set to 1.00 +/-.015".  Underneath the shoulder approximately .55" of 3/8-24 2A thread was rolled with thread relief allowance of roughly .085".  

Custom Drilled Hole Grade 10.9 Carriage Bolts

 

These custom carriage bolts were produced to our customer's drawing to class 10.9 characteristics with black oxide finish.  Approximately 27MM of M10-1.5MM 6G thread was rolled underneath the square shoulder and a 3MM hole was drilled through one side of the shoulder.  The square shoulder was produced to 10MM across the flats. Under the head a R45 radius was maintained to match the mating washer.

Custom Grade 5 Rounded Hex Nuts

 

These custom grade 5 hex nuts were manufactured with both sides rounded to match the mating fitting internal radius.  Production was done with cold forming process and parts were made to a 17MM across the flats dimension and an overall height of 14MM at the maximum.  M10-1.5 6H thread was tapped with a standard chamfer on each side.  Commercial zinc clear finish was run to complete the parts, with accompanying bake.  

Custom 3/8-24 Slotted Alloy Steel Lock Nuts

 

These custom slotted lock nuts were manufactured using 4140 alloy steel material heat treated to 28-32 HRC.  A 5% taper on the shoulder was required which created some difficulties in modifying the cold heading equipment to meet the required tolerances.  The outside diameter was set to 1.00" and the tapered shoulder reaches 0.75" at its minimum.  Parts were run through black oxide process as the final step in the production process.

Custom T651 Aluminum Precision Machined Anodized Washers

 

These custom precision machined washers were manufactured for our electronics customer using 6061-T651 aluminum material with a flash hard anodize finish.  The ID was set to 1.015-1.005" and OD at 1.625".  One of the corners required a R.062 machined radius and the washer thickness had to be between .125" and .135".  Full certs were provided with the parts.