Boshart SS304P 304 Stainless S...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$0.59
Boshart SS304P 304 Stainless Steel Cored Plug, ISO4144 Threaded Fitting

Boshart SS304P 304 Stainless Steel Cored Plug, ISO4144 Threaded Fitting

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Model: SS304P-02

In Stock (leaves warehouse same day if ordered before 3pm ET)

$0.59
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Boshart SS304P 304 Stainless Steel Cored Plug, ISO4144 Threaded Fitting

The Boshart SS304P is a 304 stainless steel cored plug built to the ISO4144 thread standard for use in stainless steel threaded piping systems. Available in sizes ranging from 1/4" through 1-1/2", this cored plug family gives plumbers and contractors a corrosion-resistant, threaded closure option for stainless steel pipe runs, rough-in assemblies, and process piping where standard carbon steel or brass components are not suitable. Manufactured in 304 stainless steel across the full size range, it resists rust and corrosion in demanding environments, making it a dependable choice for both residential and light industrial rough-in work. Every size in this family is sold in bulk carton packaging, well suited to contractors and distributors stocking stainless steel threaded fittings at volume.

Key Features

  • Size Range: Available from 1/4" up to 1-1/2" to fit a wide range of stainless steel threaded pipe runs.
  • Durable Construction: Manufactured from 304 stainless steel for strong corrosion resistance in threaded piping applications, across every size in the family.
  • Thread Standard: Machined to the ISO4144 thread standard for compatibility with stainless steel threaded fitting systems, regardless of size selected.
  • Cored Plug Design: Functions as a threaded closure/plug for capping off stainless steel threaded pipe runs and fittings.
  • Installation Tip: Boshart recommends using Gray Stainless Steel PTFE Tape together with Gray Magic Pipe Thread Compound when joining stainless steel threaded fittings for a proper seal, on any size in this range.
  • Bulk Packaging: Supplied in cartons, ideal for contractors and distributors stocking stainless steel rough-in components across multiple sizes.

Technical Specifications

  • Size Range: 1/4" - 1-1/2"
  • Material: 304 Stainless Steel
  • Thread Standard: ISO4144
  • Country of Origin: China
  • Prop 65 Warning: No

Typical Applications

  • Stainless Steel Threaded Pipe Systems
  • Rough-In Plumbing Installations
  • Corrosion-Resistant Piping Applications
  • Commercial and Light Industrial Piping
  • Distributor and Contractor Stock Replenishment

Why Boshart?

Boshart's SS304P cored plug family is built from 304 stainless steel to the ISO4144 thread standard across its full 1/4" to 1-1/2" size range, giving plumbers and contractors a reliable, corrosion-resistant option for stainless steel threaded piping systems. Combined with Boshart's recommended sealing method of Gray Stainless Steel PTFE Tape and Gray Magic Pipe Thread Compound, this cored plug supports proper installation practice for stainless steel threaded connections in any size. Stocked in bulk cartons, it's a practical option for professionals working with stainless steel rough-in components at volume.

Manufacturer Resources

Product Specs

Prop 65 Warning:
No
list_batch:
BOS-20260923
Product Type:
Cored Plug
Standards:
ISO4144
Department:
Plumbing
Product Subgroup:
Plugs
Product Material:
Stainless Steel
Product Group:
Plumbing Fittings

Boshart SS304P-02 – Frequently Asked Questions

1) Will a Boshart SS304P plug thread into my existing stainless steel fittings?
The plug is machined to the ISO4144 thread standard, which is the thread used across Boshart's stainless steel threaded fitting line, so it mates with ISO4144 stainless couplings, tees and elbows in the matching size. Thread standard is the thing to confirm before you order, because a plug cut to a different standard may start but will not seal properly.
2) What should I use to seal a stainless steel threaded plug so it does not gall?
Boshart recommends Gray Stainless Steel PTFE Tape used together with Gray Magic Pipe Thread Compound when joining stainless steel threaded fittings, and that applies to every size of the SS304P cored plug. Stainless on stainless threads are prone to galling, so tape plus compound is the combination to carry on the truck for these joints.
3) Is a 304 stainless plug the right choice instead of a brass or carbon steel plug?
Use the 304 stainless version where carbon steel or brass would corrode or where the rest of the run is stainless, mixing brass or steel into a stainless line invites galvanic problems and defeats the point of the piping. The SS304P is 304 stainless through the full size range and is intended for corrosion-resistant piping, rough-in assemblies and light industrial process lines. For ordinary potable water in copper or brass systems, a brass plug is the cheaper and adequate choice.
4) What is a cored plug and how does it differ from a solid square-head plug?
A cored plug is a threaded closure with a hollowed (cored) body rather than a solid slug of metal, it threads into the female end of a fitting or pipe to cap the run. Function is the same as a solid plug, closing off the opening, but the cored body uses less material. The Boshart SS304P is used to cap stainless steel threaded pipe runs and fittings.
5) Is the Boshart SS304P plug sold individually or in bulk cartons?
Every size of the SS304P is supplied in bulk carton packaging, which suits contractors and distributors stocking stainless threaded fittings at volume rather than someone needing a single plug for one repair.
6) Does the Boshart SS304P stainless plug carry a Prop 65 warning?
No Prop 65 warning applies to the SS304P cored plug. It is manufactured in China from 304 stainless steel, useful to know if your institutional or government spec asks for country of origin on submittals.
How fast can I get the Boshart SS304P-02 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Boshart SS304P-02 come with a warranty?
Absolutely. The Boshart SS304P-02 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Boshart SS304P-02?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Boshart SS304P-02 from ZenSupply?
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