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SILICON BRONZE SPLT LCK WASHER 5/16
Manufacturer Resources
Product Specs
- Country Of Origin:
- Taiwan, Province Of China (TW)Japan (JP)Korea, Republic Of (KR)Switzerland (CH)Italy (IT)
- Product Group:
- Components & Hardware
- Product Type:
- Split Lock Washer
- Selling Unit Of Measure:
- each
- Suitable For:
- 5/16 Inch
- Type2:
- Split washer
- Department:
- Electrical
- Product Subgroup:
- Washers
- Product Material:
- Silicon Bronze
Blackburn 31030SW-C – Frequently Asked Questions
1) Why use a silicon bronze lock washer instead of a steel one on a ground connection?
Silicon bronze is the material here, and that matters on grounding and bonding hardware where the bolt, lug, and connector are bronze or copper alloy. Mixing a plated steel washer into a bronze-to-copper joint introduces dissimilar metals, which is where corrosion and a rising-resistance connection start. Keeping the washer in silicon bronze keeps the whole stack compatible, including in damp and direct-burial-adjacent locations.
2) What does a split lock washer actually do on a grounding lug bolt?
It is a single-coil split washer, which means it acts as a spring under the nut. Once torqued, the sprung gap keeps tension on the joint so vibration and thermal cycling don't back the nut off. On grounding and bonding work that tension is what holds the low-resistance contact over time. It is not a flat washer and won't spread load over a large bearing surface, so if you need bearing area use a flat washer with it.
3) What is the manufacturer part number for the Blackburn 5/16 silicon bronze split lock washer?
Blackburn part number 31030SW-C. That is the number to quote for a 5/16 inch silicon bronze split lock washer, and the only model offered under it, so there is no size or finish option to specify when ordering.
4) Is the Blackburn 31030SW-C sold individually or in a bag?
It sells each, one washer per unit, so you order the exact count a job needs rather than a fixed bag quantity. For a panel or ground bar build-out where you want a spare or two, just raise the quantity.
How fast can I get the Blackburn 31030SW-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 31030SW-C come with a warranty?
Absolutely. The Blackburn 31030SW-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 31030SW-C?
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