Home > Marine & Water Treatment
We supply our marine and water treatment OEM customers the full range of custom fasteners, including custom screws/bolts, washers, springs, studs, nuts, pins, precision machined components and much more. We are proud to serve many of the premier manufacturers in this field including Blue White, Xylem, Teledyne, and DIG to name a few.
CALL US WITH YOUR INQUIRIES AT (866) 243-3044 OR EMAIL US AT SALES@ENGINEEREDSOURCE.COM

  • Custom 1/4-20 Fully Threaded Studs In Brass Material

    These are custom cut and chamfered 1/4-20 threaded studs in brass material that we supply to our long time customer at small 1,000-3,000 pieces quantities. Lead time is typically 1 to 2 weeks depending on the material availability, which can be significantly improved with a rush charge if necessary. Our internal part number is FTS-014048-O.

  • Custom 18-8 Stainless Steel Flat Washer

    These are domestic made 18-8 stainless steel flat washer measuring .170 X .500 X .030. Tolerances on the OD are +/-.0050 and the ID is maintained within .170-.177 per the customer specific requirements. The thickness on the washer ranges between .030 and .040 inches.


  • 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 316 Stainless Steel Round U-Bolts - 3/8 X 5 With 3-1/2 Inches of Thread

    These are custom 316 stainless steel round u-bolts we supplied to our customer at a bit over 1,000 pieces.  Lead time was at about 6-7 business days from order and material certs with certificate of conformance were provided with the parts as well per our customer's request.  The inside width is 2-5/8", inside length is 5", and approximately 3-1/2" of thread are incorporated at each leg.  Rush service is available upon request.

  • Custom 316 Stainless Steel Shoulder Screws - 4-40 X 1

    These custom 316 stainless steel shoulder screws were produced domestically in the USA for our water treatment OEM customer. Partial 4-40 thread was incorporated, with a machined shoulder incorporated per our customer specifications. The hex socket drive was broached rather than cold headed - you can see the slight rough nature of the drive when zooming into the photo.

  • Custom Bent Anchor Bolts - 3/16 Diameter in 316 Stainless Steel Material

    Pictured here are custom bent anchor bolts made domestically using 316 stainless steel material.  10-24 thread is used on one leg at approximately 7/8" in length.  An 85 degree bend was incorporate per customer's print, with the thread containing leg measuring 1-3/4" and the short leg measuring 1-1/2".

  • Custom Binding Post - Female In 316 Stainless Steel Material With 6Lobe (Torx Alternative) Drive

    These custom binding posts were manufactured using 316 stainless steel material, with 3/8 coarse internal thread tapped as close to the head as possible and a T30 drive cold headed all the way through.  The head diameter is 1.13" head height at .19" +/- .01".  The shoulder outside diameter is set to .63" and measures .75" in length, with both dimensions also limited to a +/-.01" tolerance.  4340 alloy steel material was also considered as an alternative, offering greater strength when heat treated than the 316 stainless steel material version pictured here.

  • Custom Brass Inserts - 8-32 X .255" Split Lock Inserts

    These are one of the custom brass inserts we supply our long time customer that had production facilities in the US and in Mexico.  We initially ran a test production cycle of 300 pieces for them to test in their assembly prior to committing for the full 10,000 pcs required in their first batch.  Plain brass material was used and the knurled outside diameter was set at .235".  Our customer was in a rush and we ran an expedited option with lead time at under 2 weeks.

  • Custom Coupling Nuts With Nylon Patch - 5/16-18 X 1.5"

    We had 10,000 pieces of these custom coupling nuts with nylon patch produced for our customer using 18-8 stainless steel material with partial internal thread. The drilled hole depth was at 19MM max and 16MM of that depth was to be threaded. Across the flats measures .500" and overall length at 1.5". The undrilled side required a 45 degree chamfer resulting in a .40" diameter round base. Nylon patch was applied at 180 degrees after the first 2 threads.


  • Custom Eye Bolts - 5/16 X 1-3/8 Stainless Steel Custom Eye Bolt With Coarse Thread

    These are custom eye bolts we supplied in 304 stainless steel material, with nuts and washers per our customers requirements.  5/16" coarse thread and bar stock was used and the parts were bent to create a 1-3/8" inside eye diameter and approximately 1" of thread.  Material certs were made available to the customer with the parts and the lead time to produce 75 pieces was approximately 7 business days.

  • Custom Flat HDPE Washers - .625 X .250 X .030 In Polyethylene Material

    We supply a number of different custom flat HDPE washers like this .030 thick washer.  This specific .625 X .250 flat washer we supply to our long time customer on a blanket purchase order basis, with a 12 month initial term.  Lead time on a part like this is typically 4-6 weeks from order and drawing approval if applicable.

  • Custom Large Stainless Steel Spacers - 1/2" Round OD X 3 Inches In Length

    Our marine OEM customer ordered approximately 4,000 pcs of these custom large stainless steel spacers. 5/16-18 thread was incorporated internally, 1-1/4 inches of thread min on each side. The gap between the two sides of thread was drilled all the way through for improved production time, allowing the entire part to be drilled through and then each side tapped on both sides. The outside diameter was set at 1/2" and the overall length at 3". Tolerances on all dimensions were +/- .015". 303 stainless steel material was used for production and material certs are available upon request.

  • Custom Machined Flat Head Screws In 303 Stainless Steel

    These are custom machined flat head screws made domestically in the USA using 303 stainless steel material.  The unique application required the custom screw to have a stop shoulder machined and a 30 degree angle under the head.  10-24 thread was used for the threaded area and the head diameter was maintained at .312" +/-.005.  We supplied just 10 pieces of these custom machined screws for prototype purposes before our customer commits to a larger quantity.

  • Custom Metric Fine Thread Hex Cap Screw in A2 Stainless Steel

    This is a domestic manufactured custom fine thread metric hex head cap screw in A2 stainless steel material we supplied to one of our marine OEM customers - the parts measured M8 X 1.0 X 30MM and were made fully threaded to the customer's specific instructions. Lead time was 4-6 weeks from order.

  • Custom Nylon Precision Machined Plugs

    Easily one of the more odd specials we have worked on for a customer, this is the niche nipple repair plug made to a print provided by our long time customer. Each part is machined individually as opposed to injection molding process alternative, making it a fairly expensive item to produce but the ideal way to meet the critical tolerances. We typically ran approximately 1,000 pcs at a time for our customer.

  • Custom Oval Point Set Screws - 7/16-14 X 7/8 in 18-8 Stainless Steel Material

    These custom oval point set screws are manufactured domestically in the USA in 304 stainless steel material. Lead time for production was 6-8 weeks from order confirmation. These custom set screws measure 7/16-14 X 7/8 and our internal part number is SSO-4314-I.  Full certs were provided per our customer's request.

  • Custom Panel/Captive Screw With O-Ring

    This is a custom captive screw measuring 10-32 X 2-3/8 manufactured in the United States using 18-8 stainless steel material.  It has a standard pan head with a phillips drive and is partially threaded to act as a captive/panel screw.  An o-ring is incorporated on each screw to our customer's specifications.  We have carried this part on a blanket as-released purchase order basis for the same customer for over five years.

  • Custom Precision Flange Bushings In Stainless Steel Material

    These custom precision flange bushings were produced domestically in the USA using 18-8 stainless steel material.  The overall length measured .630" +/-.01" and the part incorporated both an external flange and an external flange per customer supplied drawings.  The OD on the barrel portion is .5" and .585" at the external flange, both with the same +/-.01" tolerance.  ID on the inside barrel portion is .45".

  • Custom Round 304 Stainless Steel U Bolts - 3/8 X 17-7/8 With Material Certs

    These are custom round 304 stainless steel u bolts with extra long threaded section to allow our customer to cut them down as needed for a variety of different applications.  This allowed him to get better pricing on a larger quantity and still service a different length requirements.  The inside width is measured at 1/2" and the inside depth is at 8-1/2 inches.  Each leg has approximately 7-1/4 inches of coarse thread.  Material certs were provided with the parts per our customer's request.

  • Custom Round 304 Stainless Steel U-Bolts - 1/2 X 3-1/2 Rush Order

    These are custom round 304 stainless steel u-bolts domestically manufactured for our customer at 535pieces. This was rush order and we were able to produce the parts within 3 days of order placement. Material certs and a certificate of conformance was provided with the parts per the customer's specific request. The inside width was set at 2-1/16 inches, inside depth at 3-1/2 inches, and 1-1/4 inches of 1/2 diameter coarse thread was incorporated on each leg.

  • Custom Rubber Vibration Isolation Mounts With Steel Zinc Pin - 10-24 Thread

    These are 10-24 thread version of custom rubber vibration isolation mounts we supply our customer base.  This specific part we supply on a revolving blanket purchase order basis.  The vibration isolation mounts are manufactured domestically in the USA and the initial lead time for first shipment is typically at 45-60 days from order confirmation.

  • Custom Stainless Steel Threaded Studs

    These custom stainless steel threaded studs were supplied to our custom at just 550 pieces with a lead time of 1-2 weeks from confirmed order.  The threaded studs were manufactured domestically using 18-8 stainless steel material with passivation to complete the production process.  They measure 6-32 X 7/8" and the internal part number is FTS-006014-I.

  • Special Metric Hex Head Fully Threaded Cap Screw in 410 Stainless Steel

    This is an M5 X 0.8 X 60MM hex head cap screw that is fully threaded per customer's specifications and manufactured in the United States using 410 stainless steel. Parts are then heat treated for required hardness. A similar part is supplied for the same customer at M6 diameter, which will be shown as a separate entry. Both parts are supplied on a one-time release basis at 5,000 pieces each.



  • Special PTFE Teflon Button Part Made to Print

    These custom PTFE button head pins were manufactured domestically in the USA using plain PTFE material and were supplied with full certs.  Although they look relatively simple they are very difficult to manufacture due to the tiny size and also the immense jamming issues you get running this material through the production equipment.  It took a long time to perfect our process and achieve the tolerances without consistent equipment issues.

  • Specialty Stainless Steel U-bolts - 1/2 X 8 U Bolts To Print In 304 Stainless Steel Material

    These specialty stainless steel u-bolts were manufactured domestically using plain 304 stainless steel material. The 1/2-13 thread was incorporated at 1-1/4 inches on both sides with the thread cut, as opposed to rolled. Unless the customer specifically requests rolled thread we typically always use the cut thread as the default option. The inside depth measured 3 inches and the inside width is 2-1/16". A rush fee was paid by the customer to get the custom u-bolts completed within 2 days from order.


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