1/4-20 x 1 3/4 Slotted Pan Machine Screw Fully Threaded Zinc 10-24-2B It has a castellated design

It has a castellated design

5/16 Regular (medium) Split Lock Washer 18-8 Stainless Steel

it features a split design that creates a spring-like action

Their heavy hex heads provide ample grip for tightening

This 1/4-20 x 3 Hex Cap Screw is made of durable 18-8 stainless steel

1/4-20 x 1 3/4 Slotted Pan Machine Screw Fully Threaded Zinc 10-24-2B It has a castellated designThis 1 4 20 x 1 3 4 Slotted Pan Machine Screw is fully threaded and made of zinc plated steel. It has a pan head with a slotted drive and a length of 1 3 4 inches. This screw is commonly used in a variety of applications, including metalworking, woodworking, and construction. It is strong and durable, and the zinc plating provides corrosion resistance.