Ridgid 3786 Series NPT Manual ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$97.28
Ridgid 3786 Series NPT Manual Pipe & Bolt Threader Dies

Ridgid 3786 Series NPT Manual Pipe & Bolt Threader Dies

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Model: 37865

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

$97.28
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Ridgid 3786 Series NPT Manual Pipe & Bolt Threader Dies

The Ridgid 3786 Series Manual Pipe & Bolt Threader Dies, available in Models 37860 and 37865, are built to cut clean, accurate National Pipe Thread (NPT) profiles for professional electricians, plumbers, and pipefitters who rely on manual threading equipment for on-site conduit and pipe work. Engineered as replacement or upgrade dies for Ridgid's manual pipe threading tools, this series is designed to deliver consistent, precise NPT threads job after job across both available models. Backed by Ridgid's Full Lifetime Warranty and manufactured in the United States, the 3786 Series die sets are built for tradespeople who need dependable, long-lasting threading performance in demanding field and shop environments.

Key Features

  • Thread Type: Cuts National Pipe Thread (NPT) profiles for standard pipe and conduit threading applications.
  • Model Series: The 3786 Series is offered in Models 37860 and 37865, each designed to pair with compatible Ridgid manual pipe threaders.
  • Pipe & Bolt Dies: Dual-purpose die design supports both pipe threading and bolt threading tasks from a single set.
  • Full Lifetime Warranty: Every model in the 3786 Series is backed by Ridgid's Full Lifetime Warranty for long-term confidence in tool performance and durability.
  • Made in the USA: Manufactured in the United States to Ridgid's established quality and precision standards.
  • Manual Threading Compatibility: Designed for use with manual (hand-operated) pipe threading equipment commonly used in electrical and plumbing trades.

Technical Specifications

  • Model Options: 37860, 37865
  • Thread Standard: NPT (National Pipe Thread)
  • Product Warranty: Full Lifetime Warranty
  • Country of Origin: United States

Typical Applications

  • Conduit and Rigid Pipe Threading
  • Electrical Contractor Field Work
  • Plumbing and Pipefitting Installations
  • Bolt Threading Tasks
  • Manual Threading Tool Maintenance and Die Replacement

Why Ridgid?

Ridgid has long been a trusted name among professional tradespeople for threading, cutting, and pipe-working tools. The 3786 Series NPT dies, available in Models 37860 and 37865, carry Ridgid's Full Lifetime Warranty, giving contractors confidence in long-term reliability for repeated field use across either model. Manufactured in the United States, these dies are built to deliver the accurate, repeatable NPT threads that electrical and plumbing professionals depend on for code-compliant, leak-tight pipe connections, whether replacing worn dies or outfitting a manual threader from scratch.

Manufacturer Resources

Product Specs

Model Number:
(NPT) National Pipe
Product Warranty:
Full Lifetime Warranty
Country Of Origin:
United States
list_batch:
RID-20260924
Product Type:
Threading Dies
Series:
3786
Standards:
NPT
Department:
Electrical
Product Subgroup:
Power Tools
Warranty Length:
Lifetime
Product Group:
Power Tools & Accessories

Ridgid 37865 – Frequently Asked Questions

1) Do these dies work with a power threading machine or only a hand threader?
The 3786 Series dies are made for manual, hand-operated pipe threading equipment of the kind electricians and pipefitters use on site. If you are running a powered threading machine, you need dies cut for that head instead.
2) What thread standard do Ridgid 37860 and 37865 dies cut, NPT or BSPT?
NPT, National Pipe Thread, is the only standard these dies cut. That is the taper thread used on rigid conduit and standard US pipe for leak-tight joints with pipe dope or tape. If the job calls out BSPT or a straight NPSM thread, these are the wrong dies.
3) Will Ridgid 3786 dies cut threads on bolts as well as pipe?
Yes. The 3786 Series is a pipe and bolt die, so one set handles both pipe or conduit threading and bolt threading tasks rather than needing a separate bolt die.
4) Can I buy Ridgid 3786 dies as replacements for worn dies in a threader I already own?
That is one of their intended uses. The 3786 sets are sold as replacement or upgrade dies for Ridgid manual pipe threading tools, so a shop can refresh worn dies rather than replace the whole threader. Match the die set to your threader head and the pipe size you cut.
5) If I need to thread both 1/4 and 3/8 inch conduit, do I need two die sets?
Yes. The 3786 Series is sold one size per model, so you would order 37860 for the 1/4 inch NPT work and 37865 for the 3/8 inch. There is no single set in the series that spans both sizes.
6) Are Ridgid 3786 threading dies made in the USA?
Yes, country of origin on the 3786 Series is the United States, which matters on public and institutional work carrying domestic sourcing requirements.
How fast can I get the Ridgid 37865 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 Ridgid 37865 come with a warranty?
Absolutely. The Ridgid 37865 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 Ridgid 37865?
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 Ridgid 37865 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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