Hillman 50 Pcs Grade 8 Split Lock Washers (1/2") | Yellow Dichromate Hardened Steel Lock Washers for Bolts, Nuts & Screws | Vibration-Resistant Fasteners for Heavy Duty, Machinery & Construction

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Management number 218988826 Release Date 2026/05/03 List Price $5.88 Model Number 218988826
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Product Description Hillman 1/2-inch Grade 8 split lock washers are designed to provide secure fastening support in high-strength mechanical and structural applications. These washers are commonly used alongside Grade 8 bolts and nuts in heavy-duty assemblies where maintaining a tight connection is critical. Manufactured from hardened steel, these washers are built to withstand the higher clamping loads associated with Grade 8 hardware. They are often used in construction equipment, automotive systems, heavy machinery, and structural fastening applications where durability and strength are required. The split ring design creates tension when compressed between a nut or bolt head and the material surface. This tension allows the washer to grip both surfaces and helps prevent fasteners from loosening due to vibration or mechanical movement during operation. Each washer is finished with a yellow zinc dichromate coating, which provides strong resistance to rust and corrosion while also offering a distinctive gold-toned finish commonly associated with Grade 8 hardware. This coating also makes the washers suitable for use in projects involving pressure-treated lumber. These washers are sized for 1/2-inch bolts and fasteners, ensuring compatibility with common Grade 8 hardware used in heavy-duty construction and mechanical installations. Packaged in a convenient C-Pak containing 50 washers, these fasteners are ideal for contractors, mechanics, equipment technicians, and DIY homeowners working on structural installations, machinery repairs, automotive maintenance, and high-strength fastening projects. From the Manufacturer This split lock washer provides a circular bearing surface with offset split ends which help bite into the mating material to provide a locking feature when tightened beneath a nut. It is round with a hole in the center and can be used where loosening from corrosion or vibration is a concern. Lock washers are commonly used in any application using a bolt where two pieces are being drawn together.

  • The split lock washer provides a more uniform load distribution
  • Used in applications with like nuts and bolts of similar diameter as well as screw products
  • These fasteners resist loosening caused by vibration and corrosion
  • YELLOW DICHROMATE FINISH FOR CORROSION PROTECTION: These washers feature a durable yellow zinc dichromate finish that offers strong resistance to rust and corrosion. The protective coating enhances durability and makes the washers suitable for outdoor environments and applications involving treated lumber.
  • TRUSTED HILLMAN FASTENING SOLUTIONS: Hillman hardware products are engineered for consistent quality, dependable performance, and reliable fastening across construction, repair, and home improvement applications.
UPC 008236090802
Brand Hillman
Color Yellow Dichromate
Model 300315
Set Name 50-Pack 1/2" Split Lock Washer Set
Size Name No Size
Metal Type Carbon Steel
Unit Count 1.0 Count
Item Weight 8 Ounces
Part Number 300315
Thread Size thread.size
Washer Type Split Lock
Finish Types Yellow Dichromate
Grade Rating Grade 8
Manufacturer The Hillman Group
Fastener Size 1/2"
Fastener Type Screw Mount
Item Diameter 0.5 Inches
Material Type Alloy Steel
Item Thickness 0.35 Inches
Item Type Name 1/2" SPLIT LOCK WASHER
Exterior Finish Zinc Yellow-Chromate
Item Dimensions 1.7 x 2.6 x 2.4 inches
Number Of Items 1
Number of Pieces 50
Outside Diameter 1 Inches
Screw Head Style head.style
Included Components Hardware; Fasteners & Hooks;lock-washers
Warranty Description Warranty
Compatible Groove Diameter 0.5 Inches
Global Trade Identification Number 00008236090802

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