Custom Metric Dacromet Coated U-Bolts - M4 X 52.07MM

We had 1,100 pieces of these custom metric dacromet coated u-bolts produced using 42CrMo  material with heat treat hardening.  The part was originally designed to be made using 17-4PH stainless steel material but a number of attempts resulted in multiple failures during bending - the material was too hard and repeatedly snapped as the tool pressed the 90 degree corners.  As a result we switched to the 42CrMo material with heat treat to obtain the required hardness and strength, with a combination of the dacromet coating to achieve the corrosion resistance needed.  Turned out to be a much trickier part than originally anticipated!

Custom Construction Bent Anchors - 1-1/4" by 39.37" In A36 Material

These custom construction bent anchors were manufactured domestically using A36 material with plain finish.  1-1/4" bar stock was used and the threaded portion was turned down to allow for cutting M42 thread.  Overall length was set at 1,000MM or 39.37", with the outside hook measuring 180MM.  Tricky part to bend within tolerance but ended up turning out great.  Two heavy hex nuts and washers per anchor bolt were included with the shipment.

Custom Class 12.9 Metric Aerospace Screws With Cad Plated Finish - M5 - 0.8MM Thread

These custom class 12.9 metric aerospace screws with cad plated finish were manufactured domestically using DFARS compliant 4140 alloy steel material per ASTM A108.  1,100 pieces were produced measuring 5M X 0.8MM X 16.15MM +/0.03MM.  6G class thread was rolled and the head incorporated a cold formed socket drive, fine knurl feature, and a .050" diameter through hole.  Parts were run through a cadmium plating process at .0003/.0005" type II, Class 2 per AMS QQ-P-416, followed by non destructive magnetic particle inspection testing per ASTM-E-1444.  Full certs and FAIR was provided with the parts.

Custom 1"-8 Grade 5 Serrated Hex Flange Nuts With Zinc Clear Finish

These custom 1"-8 grade 5 serrated hex flange nuts were produced at approximately 27,000 pieces, with zinc clear finish per ASTM B633 Type III.  Full certs were provided with the parts to document surface and core hardness, material chemical properties, proof load, and certificate of conformance.  3rd party lab testing was also procured to confirm all factory documentation.  The nuts were required to pass a 72,000 psi min proof load requirement and core hardness of 32 Rc max.  Outside diameter was set at 1.95"-2.00" and overall nut height at .700"-.730".

Custom Dual Shoulder Screws In 316 Stainless Steel Material

These custom dual shoulder screws were manufactured domestically using 316 stainless steel material with plain finish for our medical device customer.  M4-0.7 thread was incorporated at the end of the custom screw with a ball point.  Two raised shoulders were incorporated with the outside diameter of both at .153 +/- .005" - the captive areas between the shoulders were set to an outside diameter of .133 +/- .005".  The head measured .270" X .198" with a standard slotted drive.

Custom Internally Threaded Socket Head Screws - 304 Stainless Steel

These custom internally threaded socket head screws were manufactured domestically using 304 stainless steel material with plain finish.  Outside thread was M12-1.75 and the internal thread was set to M8-1.25, threaded all the way through.  10MM X 4MM deep hex socket drive was incorporated with a broach process.  For very high volume production this part would likely be made using a cold headed process instead for the hex drive.

Custom Slotted Internally & Externally Threaded Studs

We supply five different size configurations of these custom slotted internally & externally threaded studs to our construction customer.  45K plain steel material is used to produce the parts, with plain and light oil finish.  This specific slotted stud incorporates 1/4-20 internal thread and 1/2-13 external thread.  Both sides are slotted and an extended outer chamfer is required on one side to allow easier installation and removal in the application.  While the different variations have other external thread diameters and length they share the same 1/4-20 internal thread requirement.

Custom 316 Stainless Captive Shoulder Screws - M4-0.7 Thread

These custom 316 stainless captive shoulder screws were manufactured domestically with plain finish.  The captive shoulder area measured 2.94MM X 12MM +/-.005" and the M4-0.7 thread covered 8MM of the overall length.  Slotted pan head was incorporated per standard IFI dimensions.  The metric thread on these parts was cut rather than rolled.

Custom Precision Dowel Pins In 18-8 Stainless Steel Material

We had 3,200 pieces of these custom precision dowel pins made domestically for our medical device customer using 18-8 stainless steel material with plain finish.  Overall length was set to .240" +/- .005" and the diameter was set to .092" +/-.005".  These were relatively simple parts and the lead time was much faster than the more involved parts that require a special finish.  Full certs were provided with the parts.

Custom Captive Shoulder Screws - 18-8 Stainless Steel Material

These custom captive shoulder screws were manufactured using a modification to a COTS part for our defense customer using 18-8 stainless steel material with standard 2-56 3A thread and standard socket head dimensions.  Length underneath the head was designed to .750" +/- .005" and the shoulder was turned to a diameter of .052-.054", at a length of .066" +/- .005".  The thread had to be chased for each part to ensure smooth thread transitions after the additional shoulder was incorporated.