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Washers 3/8 Split LockSt-zn (Jar 100)
Special Features
- lockwasher domestic
Manufacturer Resources
Product Specs
- Ansi:
- ANSI
- Country Of Origin:
- United States
- Division:
- Electrical H1
- Fits Bolt Size:
- 8-Mar IN
- Inside Diameter:
- 0.375 - 0.385 IN
- Outside Diameter:
- 0.68 IN
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Rockwell Hardness:
- C38- 46
- Sub Division:
- Electrical-E H2
- Washer Type:
- Split Lock Washer
- Department:
- Electrical
- Product Subgroup:
- Washers
- Product Finish:
- Zinc Chromate
- Product Length:
- 3 in
- Product Height:
- 2.15 in
- Product Material:
- Steel Zinc
- Product Weight:
- 0.66 lbs
- Product Width:
- 3 in
Metallics JLW174D – Frequently Asked Questions
1) Will the Metallics JLW174D split lock washer fit a 3/8 inch bolt?
Yes. The JLW174D is sized for 3/8 inch bolts, with an inside diameter of 0.375 to 0.385 inches so it slips over 3/8-16 threads without binding. Outside diameter is 0.68 inches, so it seats well inside a standard 3/8 nut or bolt head bearing face.
2) How many 3/8 split lock washers come in a jar of Metallics JLW174D?
One hundred washers per jar. The jar pack is what electricians and MRO stockrooms tend to want on the truck or the shelf, since it pours and reseals rather than spilling out of a bag. Jar weight is 0.66 lbs.
3) Is a zinc plated split lock washer OK for outdoor or damp electrical work?
The JLW174D is steel with a zinc chromate finish, which handles normal indoor and protected outdoor service like strut runs, panel mounting, and equipment grounding hardware. For continuous wet, coastal, or corrosive-chemical exposure, specify stainless rather than zinc plated steel.
4) Is this split lock washer hard enough to keep tension under vibration?
Yes. It is heat treated to Rockwell C38-46, the hardness range a helical spring washer needs to hold spring back against the nut instead of flattening out on first torque. That is what lets it resist loosening on vibrating loads like motors, transformers, and gear-mounted equipment.
5) Should I use a split lock washer or a flat washer under a 3/8 nut?
They do different jobs. A split lock washer like the JLW174D resists the nut backing off under vibration; a flat washer spreads the load over a larger bearing area and protects the surface. On soft material or oversized holes, use both: flat washer against the material, split lock against the nut.
6) Are Metallics JLW174D lock washers made in the USA?
Yes, domestic product, with country of origin listed as the United States. That matters on public work and other jobs carrying domestic-preference requirements for fasteners.
7) Will a 3/8 split lock washer sit inside a standard strut channel nut or washer face?
At 0.68 inches outside diameter it stays compact, so it bears on the nut face rather than hanging over the edge of typical 3/8 hardware and channel fittings. If your fitting has a recessed or shouldered seat narrower than about 0.68 inches, measure the recess before assuming it drops in.
How fast can I get the Metallics JLW174D 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 JLW174D come with a warranty?
Absolutely. The Metallics JLW174D 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 JLW174D?
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 JLW174D from ZenSupply?
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and
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