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1/4 BRONZE SPLIT LOCKWASHER
Manufacturer Resources
Product Specs
- Country Of Origin:
- Taiwan, Province Of China (TW)
- Product Group:
- Components & Hardware
- Product Type:
- Split Lock Washer
- Selling Unit Of Measure:
- each
- Suitable For:
- 1/4 Inch
- Type2:
- Split washer
- Department:
- Electrical
- Product Subgroup:
- Washers
- Product Material:
- Silicon Bronze
Blackburn 14030SW-C – Frequently Asked Questions
1) What bolt size does the Blackburn 14030SW-C split lock washer fit?
The 14030SW-C is a 1/4 inch split lock washer, so it goes over 1/4 inch bolts, studs, or threaded rod. Using it on a 3/8 or 5/16 fastener won't work, the washer has to match the bolt diameter to spring against the nut face properly.
2) Is the Blackburn 1/4 inch lock washer suitable for outdoor grounding and direct burial connections?
It's silicon bronze, which is the material used for grounding and bonding hardware exactly because it resists corrosion in wet, buried, and outdoor conditions and is galvanically compatible with bronze lugs, ground rod clamps, and copper conductors. That's why you'd choose this over a plain steel or zinc plated split washer on an electrical ground.
3) Can I use a steel split lock washer instead of the bronze 14030SW-C on a bronze ground clamp?
Not a good idea outdoors or in damp locations. Pairing steel or zinc plated hardware against bronze and copper sets up a dissimilar metal couple that corrodes the joint and raises resistance over time. The 14030SW-C is silicon bronze specifically so the whole stack stays the same metal family.
4) Is the Blackburn 14030SW-C sold individually or in a bag of 100?
It's sold each, so quantity on the order is the number of washers you get. If you're kitting out a run of ground rod clamps or lug terminations, order the piece count you need rather than assuming a bagged quantity.
5) Why use a split lock washer on a bonding connection instead of a flat washer?
A flat washer spreads load, it does nothing to stop a nut backing off. The 14030SW-C is a split type, so the helical gap acts as a spring and bites the nut and the bearing surface to resist loosening from vibration and thermal cycling. On a bonding or grounding termination that matters, because a loose nut means a high resistance path. Use both if you need load spreading plus locking.
6) What is the manufacturer part number for the Blackburn 1/4 inch bronze split lockwasher?
Blackburn part number 14030SW-C. That's the number to quote for a 1/4 inch silicon bronze split lock washer if you're matching a submittal or reordering to spec.
7) Where is the Blackburn 14030SW-C bronze lock washer made?
Country of origin is Taiwan. Worth knowing if you're submitting on a project with domestic sourcing requirements, since that will disqualify it on Buy American jobs.
How fast can I get the Blackburn 14030SW-C delivered?
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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 Blackburn 14030SW-C come with a warranty?
Absolutely. The Blackburn 14030SW-C 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 Blackburn 14030SW-C?
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