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Washers M3 Split Lock St-zn (Jar 100)
Manufacturer Resources
Product Specs
- Ansi:
- ANSI
- Division:
- Electrical H1
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Washer Type:
- Lock Washer
- Department:
- Electrical
- Product Subgroup:
- Washers
- Product Length:
- 3 in
- Product Height:
- 2.15 in
- Product Material:
- Stainless Steel
- Product Weight:
- 0.08 lbs
- Product Width:
- 3 in
Metallics JMLW03 – Frequently Asked Questions
1) What screw size do the Metallics JMLW03 lock washers fit?
These are M3 split lock washers, so they go on M3 metric screws and bolts (roughly 3 mm nominal thread diameter). They will not do anything useful on an imperial #6 or 1/4-20 fastener. If you are working a metric panel, enclosure, or imported fixture with M3 hardware, this is the matching size.
2) How many M3 split lock washers come in a jar of Metallics JMLW03?
One hundred per jar. The JMLW03 ships as a 100-piece jar rather than loose count or a bulk box, which is the sort of quantity an electrician keeps on the truck for panel and device screws rather than something you buy for a single fixture.
3) Should I use a split lock washer or a flat washer on an M3 screw?
They do different jobs. A split lock washer like the JMLW03 is a spring ring that bites into the nut face and the joint to resist loosening from vibration, so it is what you want on terminal screws, enclosure covers, and mounting hardware that gets shaken. A flat washer spreads the load and protects a soft surface but does nothing against back-off. On a joint that both vibrates and bears on thin sheet metal, use both: flat washer against the material, split lock under the nut.
4) Are these Metallics M3 lock washers made to an ANSI standard?
The JMLW03 is produced to ANSI dimensional standards, which matters if you are specifying fasteners for a job that calls out a recognized standard rather than a shop-grade part. Country of origin is China.
5) How much shelf or bin space does a jar of Metallics JMLW03 washers take up?
The jar measures 3 x 3 x 2.15 inches and weighs 0.08 lbs, so it drops into a standard small-parts bin or a van drawer without repackaging. Useful to know if you are standardizing a fastener wall and sizing bins per jar.
6) Can I order the M3 split lock washer by part number for a repeat MRO stock order?
Order it as Metallics JMLW03. That single part number covers the M3 split lock washer in the 100-piece jar, so there is no size or finish option to specify on the purchase order.
How fast can I get the Metallics JMLW03 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 JMLW03 come with a warranty?
Absolutely. The Metallics JMLW03 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 JMLW03?
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product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Metallics JMLW03 from ZenSupply?
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and
rewards on
every order.
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