Choosing the right 7/8 lock washer helps prevent loosening from vibration, distributes load evenly, and protects fastened assemblies. The following products are selected for reliability, corrosion resistance, and compatibility with 7/8-inch fasteners. This guide highlights key features to consider when shopping and compares options from reputable brands.
| Product | Brand | Material | Inside Diameter | Notes |
|---|---|---|---|---|
| QISHENG 5 PCS 7/8″ Stainless Steel SAE Spring Lock Washers | QISHENG | Stainless Steel 304 (18-8) | 7/8 inch | Corrosion resistant; vibration resistance; multiple colors available |
| The Hillman Group 300042 Split Lock Washer | Hillman | Steel (zinc) | 7/8 inch | Uniform load distribution; resists loosening |
| The Hillman Group 300327 7/8-Inch Split Lock Washer Grade 8 | Hillman | Steel | 7/8 inch | Uniform load distribution; corrosion resistance |
| 7/8″ ID High Strength Split-Lock Washers | Crimp Supply | Steel with zinc-yellow finish | 7/8 inch | High strength; durable finish |
| 7/8 Inch Split Lock Washer, 304 Stainless Steel | EASTLO | Stainless Steel 304 (18-8) | 7/8 inch | Bright finish; corrosion resistant |
The following sections profile five strong options. Each entry includes a clickable Amazon link, an image, and essential features to help you compare at a glance.
QISHENG 7/8″ Stainless Steel Spring Lock Washer
The QISHENG washer uses 304 stainless steel for corrosion resistance in humid environments. It provides elastic action to help prevent loosening under vibration and impacts, while promoting even load distribution to protect components from localized stress. This package includes 5 washers and is available in additional colors, supporting various project needs and aesthetics.
Hillman Split Lock Washer, 7/8-Inch
Hillman’s split lock washer design aims for uniform load distribution and resistance to loosening in applications using similar diameter nuts and bolts. It offers corrosion resistance and is suitable for a range of mechanical assemblies where vibration is a concern.
Hillman 7/8-Inch Split Lock Washer Grade 8
This Grade 8 lock washer from Hillman emphasizes a uniform load distribution and resistance to loosening from vibration and corrosion, making it suitable for demanding mechanical connections where strength matters as fasteners experience dynamic loads.
Crimp Supply 7/8″ High Strength Split-Lock
Crimp Supply offers a high-strength split-lock washer with a zinc-yellow finish, sized for a 7/8″ nominal inner diameter and a 1.46″ outer diameter. This option emphasizes robust performance in industrial or heavy-duty settings where loosening resistance is critical.
RoyceMart 7/8″ ID Stainless Steel Lock Washer
RoyceMart’s 7/8″ ID stainless steel lock washers are 304 (18-8) grade, designed for corrosion resistance and consistent performance. A compact set of eight pieces ensures easy replacement and maintenance in projects with 7/8″ fasteners, balancing durability with value.
EASTLO 7/8″ Split Lock Washer 304 Stainless Steel
EASTLO provides a 304 stainless steel lock washer with a bright finish for corrosion resistance and a reliable fit for 7/8″ bolts. The package includes 20 washers, supporting larger projects or spare parts inventory needs, ideal for ongoing maintenance tasks.
Buying Guide: Key Considerations For 7/8 Lock Washers
- Material and corrosion resistance: Stainless steel (304/18-8) offers superior corrosion resistance in humid or outdoor environments, while zinc-coated steel provides basic protection at a lower cost.
- Locking mechanism: Split lock washers create friction and elastic tension to resist loosening, while spring (regular) lock washers add resilience under dynamic loads.
- Load distribution: Look for washers designed to distribute force evenly across bolt nuts, reducing damage to mating components.
- Diameter and height: Ensure the inside diameter matches your bolt size (7/8 inch) and check compressed height for the needed axial clearance.
- Finish and appearance: Bright or zinc finishes can influence both corrosion resistance and aesthetic considerations in visible installations.
- Quantity and compatibility: Choose packs that fit your project scale, and verify compatibility with existing hardware (Grade, thread type, and bolt diameter).
- Standards compliance: ASME/ANSI B18.21.1 compliant products ensure interchangeability with standard fasteners.
- Application context: For automotive, furniture, electrical, or outdoor uses, select a washer that balances strength, corrosion resistance, and cost.