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Washers 3/8 Ext Tooth Lock St-zn (Jar 100)
Manufacturer Resources
Product Specs
- Ansi:
- ANSI
- Country Of Origin:
- MUL
- Division:
- Electrical H1
- Field Application:
- Electrical, Plumbing, Heating and Air Conditioning Industries
- Pack Type:
- Jar
- Product Family:
- Electrical Supplies
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Washer Type:
- External Tooth Lock Washer
- Department:
- Electrical
- Product Subgroup:
- Washers
- Product Length:
- 3 in
- Product Height:
- 2.15 in
- Product Material:
- Steel
- Product Weight:
- 0.24 lbs
- Product Width:
- 3 in
Metallics JLWX8 – Frequently Asked Questions
1) What size bolt does the Metallics JLWX8 external tooth lock washer fit?
The JLWX8 is a 3/8 inch external tooth lock washer, so it goes over 3/8 inch bolts, screws, and threaded rod. Order it by model JLWX8.
2) Should I use an external tooth lock washer or an internal tooth type for grounding and panel work?
External tooth is the one you want where you need the teeth to bite through paint or plating on a wide bearing surface, such as grounding lugs, bonding connections, and equipment covers. The teeth sit outside the bolt head, so they grip a larger diameter and resist rotation better under vibration. Internal tooth washers hide the teeth under the head for a cleaner look but bite on a smaller circle. The JLWX8 is the external tooth style.
3) Are these 3/8 lock washers plated, and will they hold up in a damp mechanical room?
They are steel with a zinc finish. Zinc plated steel handles normal indoor and light damp service such as mechanical rooms and panel enclosures. For continuous wet or exterior corrosive exposure, step up to a stainless external tooth washer instead.
4) Do I still need a flat washer if I use a 3/8 external tooth lock washer?
On soft material, sheet metal, or slotted strut you generally want a flat washer under the tooth washer to spread the load, since the teeth are meant to dig in and will score a finished surface. On a solid steel bolted joint where you want the bite, the tooth washer goes directly against the metal. The JLWX8 jar contains the lock washers only, no nuts, bolts, or flat washers.
5) Are these washers only for electrical work, or can plumbers and HVAC crews use them too?
They are carried for the electrical, plumbing, heating and air conditioning trades. A 3/8 external tooth lock washer works the same on a strut clamp, a hanger rod nut, or a unit mounting bolt as it does on a ground lug.
How fast can I get the Metallics JLWX8 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 Metallics JLWX8 come with a warranty?
Absolutely. The Metallics JLWX8 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 Metallics JLWX8?
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 Metallics JLWX8 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.