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Approved Vendor
Black Zinc-Plated Steel Locknut
Manufacturer part: 90328A101
To save on assembly time, these locknuts combine a hex nut with a free-spinning lock washer, so you can twist them into place by hand. Once the nut is against your material surface, tighten it down with a wrench or socket to get the teeth to bite. Although these nuts install more quickly than nylon-insert locknuts, they don't hold up as well against vibration and can mar your material. As long as the washer stays intact, you can reuse them. Also known as Keps and K-lock nuts.Low-Strength Steel—Rated Grade 2, Class 6, or lower, these locknuts are about half as strong as medium-strength steel nuts. Use them with screws that have a similar strength rating to avoid stripping threads during installation.Black-Zinc-Plated Steel—The dark zinc plating withstands occasional exposure to moisture while creating a finished look.
- Availability
- In stock
- Lead time
- Contact supplier
- Sold by
- Approved Vendor
Technical data
Specifications
Normalized product attributes for faster comparison and sourcing.
- OD
- 0.281"
- ECCN
- EAR99
- Width
- 1/4,"
- Height
- 1/8,"
- Material
- Steel
- Nut Type
- Hex, Locknut
- Thread Fit
- Unified Standard Class 2B
- Drive Style
- External Hex
- Performance
- Vibration Resistant
- Thread Size
- 4-40
- Thread Type
- UNC
- Washer Type
- Tooth
- Locking Type
- Lock Washer
- Thread Spacing
- Coarse
- Tooth Location
- External
- Hex Nut Profile
- Standard
- RoHS Compliance
- RoHS 3 (2015/863/EU) Compliant
- DFARS Compliance
- Specialty Metals COTS-Exempt
- REACH Compliance
- REACH (EC 1907/2006) (06/27/2024, 241 SVHC) Compliant
- Thread Direction
- Right Hand
- USMCA Qualifying
- No
- Country of Origin
- Canada, China, Germany, India, Italy, Japan, Mexico, Taiwan, Thailand, United States, Vietnam
- Finished Material
- Black-Zinc-Plated Steel
- Schedule B Number
- 731816.0000
- System of Measurement
- Inch
- Fastener Strength Rating
- Low
Supplier coverage
Compare available offers
Review pricing, availability, and fulfillment details from verified distributors.
| Supplier | Supplier SKU | Price | Stock | Lead time | Type |
|---|---|---|---|---|---|
| Approved Vendor | 90328A101 | $10.37 USD | Contact supplier | Contact supplier | Authorized · US distributor |
Prices and availability are provided by suppliers and may change.