3/8 Medium Split Lock Washer Black Zinc and Bake M5-0.8 it features a ribbed neck

it features a ribbed neck that provides additional grip and prevents the bolt from loosening over time

and a hex head for driving with a wrench

making them a reliable choice for various fastening needs

#4 External Tooth Lock Washer Zinc is a versatile and reliable fastener designed to prevent loosening of bolted joints due to vibration or other dynamic forces

The 3/8-24 x 2 1/2 Hex Cap Screw Grade 5 Zinc is a high-quality fastener designed for a variety of applications

3/8 Medium Split Lock Washer Black Zinc and Bake M5-0.8 it features a ribbed neckThese 3 8" medium split lock washers are made of black zinc and bake, providing excellent corrosion resistance and durability. They are designed to prevent nuts and bolts from loosening due to vibration or movement. The split design allows for easy installation and removal, and the medium size is suitable for a wide range of applications. These lock washers are commonly used in automotive, construction, and industrial settings.