You may also like
Washers M20 Split Lock Hi-Col 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 Nut
- Department:
- Electrical
- Product Subgroup:
- Washers
- Product Length:
- 3 in
- Product Height:
- 4.57 in
- Product Material:
- Steel Zinc
- Product Weight:
- 2.55 lbs
- Product Width:
- 3 in
Metallics JMLWHC020 – Frequently Asked Questions
1) What bolt size does the Metallics JMLWHC020 split lock washer fit?
It's an M20 split lock washer, so it pairs with M20 metric bolts and nuts. If your hardware is imperial (3/4 inch or 7/8 inch), this is the wrong washer, M20 sits between those two diameters and will not seat correctly under an imperial nut.
2) What does "hi-collar" mean on a split lock washer, and when do I need it over a regular one?
Hi-collar (high collar) means a heavier, narrower split washer with a smaller outside diameter and thicker section than a standard split lock washer. It is the one to use with socket head cap screws, where the small head would overhang a standard washer's OD, and in counterbored holes where the washer has to fit inside the bore. On a standard hex bolt either will work; on an M20 socket cap screw, the hi-collar version is the correct part.
3) How many M20 lock washers come in a jar of the Metallics JMLWHC020?
100 washers per jar, packed in a jar rather than a bag or box. The jar weighs 2.55 lbs total and measures 3 x 3 x 4.57 inches, so it stores easily on a van shelf or bin rack.
4) Are these M20 split lock washers plated or bare steel?
Zinc plated steel. That gives ordinary indoor and dry-location corrosion protection for strut, panel, and enclosure hardware. For wet exterior, submerged, or coastal work, zinc plating is not the right choice, specify stainless or hot dip galvanized instead.
5) Will a split lock washer keep an M20 bolt from vibrating loose on equipment mounts?
A split lock washer works by spring tension and the bite of its cut ends against the nut face and the joint, which resists back-off from vibration on motor mounts, panel frames, and strut assemblies. It is a mechanical helical spring washer, not a chemical or prevailing-torque lock. For high-vibration or safety-critical connections many specs call for a prevailing-torque nut or thread locker instead, or in addition.
6) Is this an M20 washer or an M20 lock nut? The two get mixed up.
It is a washer, not a nut. You still need M20 nuts and bolts separately, the jar contains only the 100 split lock washers.
How fast can I get the Metallics JMLWHC020 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 JMLWHC020 come with a warranty?
Absolutely. The Metallics JMLWHC020 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 JMLWHC020?
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 JMLWHC020 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.