6-20 x 3/4 6-Lobe Flat Self Drilling Screw Fully Threaded 18-8 Stainless Steel #N/A The wings on the screws

The wings on the screws help to prevent them from spinning in the hole

This 1/4-20 x 1 1/2 Carriage Bolt Grade 8 Fully Threaded Yellow Zinc is a high-strength fastener designed for heavy-duty applications

Manufactured in the USA

This 1/4-20 x 1 1/2 6-Lobe Pan Machine Screw is made of 18-8 stainless steel and is fully threaded

The M3 DIN 127B Metric Split Lock Washer is a high-quality washer designed to prevent loosening of nuts and bolts due to vibration or shock

6-20 x 3/4 6-Lobe Flat Self Drilling Screw Fully Threaded 18-8 Stainless Steel #N/A The wings on the screwsThese 6 20 x 3 4 inch 6 lobe flat self drilling screws are made of 18 8 stainless steel for superior corrosion resistance. They feature a fully threaded design for maximum holding power and a 6 lobe drive for easy installation with a standard hex bit. These screws are ideal for a variety of applications, including metal to metal, metal to wood, and wood to wood fastening. They are also suitable for use in outdoor environments.