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Washers 5/16 Split Lock SS (Jar 100)
Manufacturer Resources
Product Specs
- Ansi:
- ANSI
- Country Of Origin:
- MUL
- Division:
- Electrical H1
- Field Application:
- Electrical, Plumbing, Heating and Air Conditioning Industries
- Fits Bolt Size:
- 16-May IN
- Inside Diameter:
- 16-May IN
- Pack Type:
- Jar
- Product Family:
- Electrical Supplies
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Washer Type:
- Split Lock
- Department:
- Electrical
- Product Subgroup:
- Washers
- Product Length:
- 3 in
- Product Height:
- 2.15 in
- Product Material:
- Stainless Steel
- Product Weight:
- 0.45 lbs
- Product Width:
- 3 in
Metallics JSLW81 – Frequently Asked Questions
1) Are these Metallics 5/16 lock washers stainless steel, and can they be used outdoors or in damp areas?
Stainless steel is the material, which is why they get specified for wet locations, exterior strut runs, rooftop mechanical work, and washdown areas where a plain or zinc-plated washer would bloom rust. Pair them with stainless bolts and nuts to avoid mixing metals in the same joint.
2) What does a split lock washer actually do, and do I still need a flat washer with it?
A split lock washer is a single coil with a split and offset ends. As you torque the nut down the coil flattens and loads the joint, and the sharp ends bite into the nut face and the surface to resist loosening from vibration. It is not a bearing washer, so on soft material, sheet metal, or an oversized hole you still want a flat washer underneath to spread the load. The JSLW81 is the 5/16 size in stainless.
3) How many 5/16 stainless split lock washers come in a jar of the Metallics JSLW81?
One hundred washers per jar, and the pack is a jar rather than a box or bag, so it stays closed in a gang box or on a service truck. Jar weight is listed at 0.45 lbs. For a crew doing repetitive strut or panel mounting, one jar covers a hundred fastener points at 5/16.
4) Will the Metallics JSLW81 washer fit a 5/16 inch threaded rod hanger?
Yes. The inside diameter is 5/16 inch, matching 5/16-18 threaded rod and 5/16 bolts, so it drops on a standard 5/16 rod hanger under the nut. Keep in mind stainless on stainless threads can gall when run down fast, so snug by hand before final torque.
5) Are these washers suitable for electrical and mechanical trade work, or just electrical?
Metallics lists the field application as the electrical, plumbing, heating and air conditioning industries, so the same 5/16 stainless split lock washer is used on panel and enclosure mounting, hanger and strut assemblies, pipe support, and equipment anchoring. It is a general fastening washer, not an electrically rated component.
How fast can I get the Metallics JSLW81 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 JSLW81 come with a warranty?
Absolutely. The Metallics JSLW81 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 JSLW81?
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