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Washers 5/16 Split Lock St-zn (Jar 1000)
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:
- 3.5 in
- Product Height:
- 5.75 in
- Product Material:
- Steel
- Product Weight:
- 4.11 lbs
- Product Width:
- 3.5 in
Metallics JLW173M – Frequently Asked Questions
1) What size bolt does the Metallics JLW173M split lock washer fit?
The JLW173M is a 5/16 inch split lock washer, so it goes under the nut on 5/16 inch bolts, screws and threaded rod. It is sold as model JLW173M in a jar of 1000.
2) Are these split lock washers steel or stainless?
Plain carbon steel with a zinc plating, not stainless. That suits dry indoor electrical work, panel and strut assembly, and general MRO. For wet, washdown or exterior coastal locations, specify a stainless lock washer instead.
3) What is the difference between a split lock washer and a flat washer on an electrical ground connection?
A flat washer spreads load across the surface; a split lock washer like the JLW173M is a helical spring that bites into the nut and the mating surface to resist loosening from vibration. On bonding and grounding hardware, the two often get stacked: flat washer against the material, split lock under the nut. The JLW173M is the lock washer half of that stack, not a load-spreading flat washer.
4) Are the Metallics 5/16 lock washers sold loose or only by the jar?
They ship as a jar of 1000 pieces, one part number, JLW173M. That is a bulk MRO and jobsite quantity rather than a small blister pack, so it suits crews standardizing one fastener size across a building or fleet of panels.
5) How much does a jar of 1000 of these 5/16 lock washers weigh, and how big is the jar?
The packed jar runs 4.11 lbs and measures 5.75 by 3.5 by 3.5 inches, so it stores easily on a van shelf or in a parts bin drawer without repackaging.
6) Are these washers dimensioned to ANSI standards?
The JLW173M 5/16 split lock washer is an ANSI dimensioned part, which is what lets it interchange with other ANSI 5/16 lock washers already in your bins. Country of origin is listed as multiple.
How fast can I get the Metallics JLW173M 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 JLW173M come with a warranty?
Absolutely. The Metallics JLW173M 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 JLW173M?
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 JLW173M from ZenSupply?
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and
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every order.
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