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We supply our gun and weapon manufacturers the full range of custom fasteners, including custom screws/bolts, standoffs/spacers, springs, washers, nuts, pins, machined components, and much more. We are proud to serve a small but critical part with many specialized gun and accessory manufacturers across the nation including SCCY, Christensen Arms, Royal Arms, and Connectec to name a few.

CALL US WITH YOUR INQUIRIES AT (866) 243-3044 OR EMAIL US AT SALES@ENGINEEREDSOURCE.COM

  • Custom 4140 Precision 10-24 Nuts - AISI 4140 Material With Plain Finish

    Tight tolerances were required on these 4140 steel precision nuts, with most dimensions at +.000/-.005 or +.000/-.003 inches. Overall thickness of the nut was set at .155" and 10-24 class 2B thread tapped all the way through. Full production of this part was at 20,000 pieces and lead time at approximately 75-90 days from order confirmation.

  • Custom 6-Lobe Socket Cap Screws - 4037 Alloy Steel Heat Treated Material

    These are custom 6-lobe socket cap screws made domestically using 4037 alloy steel material.  Strength was absolutely critical to our customer and the parts were heat treated to 39-43 hrc. In the absence of an available drawing for this part we had to work off samples our customer provided for all dimensional attributes.  After confirming the material, strength, and dimensional requirements we had 1,000 pcs produced for our customer with a lead time of approximately 12 weeks from order confirmation.  Heat treat and material certs were included with the parts.

  • Custom 6-Lobe Socket Head Screws - 4140 Alloy Steel Material

    These custom 6-lobe socket head screws were manufactured domestically using 4140 alloy steel material with heat treat to 42-47 HRC.  2A 6-48 UNS thread was incorporated with thread length at .375".  T15 6-lobe drive was cold formed and the thread rolled.  

  • Custom Bead Blast Flat Socket Screws - AISI 303 Stainless Steel Material

    Approximately 34,000 pieces of these custom bead blast flat socket screws were supplied to our customer in the weapons & gun manufacturing sector.  Half the parts were set at 1.29" length while the other half set to 1.695" length.  The same 1/4-28 thread was incorporated on both parts and the socket drive was cold headed.  A spherical readius shape was incorporated into the top of the flat head, which is difficult to discern in the photos shown.  The head height measured .097" and the head diameter at .375".  Glass bead blast process was used to add the matte sand finish desired by our customer.

  • Custom Flat Socket Head Cap Screws - 2-56 X .335/.345 In 18-8 Stainless Steel Material

    These are custom flat socket head cap screws manufactured domestically using 18-8 stainless steel material.  The production run was relatively low in quantity at approximately 10,000 pcs, with a standard non-expedited lead time of 6-7 weeks.  Material certs, certificate of conformance, and passivation certs to QQ-P-35 were provided with the parts.

  • 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 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 Round Dowel Pins in 303 Stainless Steel

    These custom 303 stainless steel round dowel pins were manufactured domestically for our gun manufacturing customer.  The OD was set to .1874-.1876 and overall length to .430 +/-.001.  R.093 radius was incorporated on one side and commercial passivation was used as the last step to complete the parts for shipment.

  • Custom Torx 6-48 Socket Head Screws - 4140 Alloy Steel Material

    These custom torx 6-48 socket head cap screws were manufactured domestically using 4140 alloy steel material with heat treat to 42-47 HRC.  2A 6-48 UNS thread was incorporated with thread length at .200".  T15 6-lobe drive was cold formed and the thread rolled.  

CALL US WITH YOUR INQUIRIES AT (866) 243-3044 OR EMAIL US AT SALES@ENGINEEREDSOURCE.COM