Hillman 5/16 in. Zinc-Plated Steel Split Lock Washer, 100-Pack
Regular price $5.045/16 in. Zinc-Plated Split Lock Washers (100-Pack)
Durable steel split lock washers designed to keep nuts and bolts from loosening due to vibration or corrosion. The zinc-plated finish offers moderate rust resistance for indoor and outdoor projects. Sized for 5/16 in. fasteners and packaged in a convenient 100-pack.
Key Features:
- Secure Fastening: Split design bites into mating surfaces to resist loosening from vibration
- Corrosion Protection: Zinc-plated finish provides moderate rust resistance for indoor/outdoor use
- Durable Construction: Made from steel for strength and long-lasting performance
- Sized for 5/16 in. Hardware: Fits bolts and nuts of matching diameter
- Bulk Value Pack: 100 washers per box for jobs of any size
Specifications Table:
| Specification | Details |
|---|---|
| Material | Steel |
| Finish | Zinc-Plated |
| Diameter | 5/16 in. |
| Product Type | Split Lock Washer |
| Number in Package | 100 pk |
| Packaging Type | Boxed |
| Unit of Measurement | Metric |
| California Prop 65 Warning | Yes |
| Package Weight | 0.43 lb |
| Package Length | 2.55 in |
| Package Width | 2.5 in |
| Package Height | 1.7 in |
| Manufacturer Part Number (MPN) | 300021 |
Frequently Asked Questions (FAQ):
Q: What size bolts do these washers fit?
A: They are designed for 5/16 in. diameter bolts and nuts.
Q: Are they suitable for outdoor use?
A: Yes. The zinc-plated finish offers moderate corrosion resistance for outdoor applications.
Q: What is the material?
A: Steel with a zinc-plated finish.
Q: How do split lock washers work?
A: The split ring applies spring tension and bites into the mating surface under a nut, helping prevent loosening from vibration.
Q: How many come in a pack?
A: 100 washers per pack.
A Small Detail with Big Impact
These zinc-sheathed split lock washers bring quiet confidence to hardware—sleek, minimal, and purpose-built. Their clean, circular profile and subtle sheen complement contemporary fixtures while ensuring connections stay taut. Style them with matching zinc or galvanized bolts for a cohesive, refined look in visible installations. A smart, polished essential for projects that demand both performance and poise.
Secure your projects with reliable, corrosion-resistant fastening—add this 100-pack of Hillman split lock washers to your cart today.
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