1/4-20 x 1 1/2 Unslot HWH Self Drill Machine Full Thd #4Point Zinc 1000 hours Salt Spray CR and the zinc bake finish

and the zinc bake finish provides excellent corrosion resistance

this plow bolt is built to withstand demanding conditions and provide reliable performance

which prevents it from loosening under vibration or shock

Ideal for building decks

1/4-20 x 1 1/2 Unslot HWH Self Drill Machine Full Thd #4Point Zinc 1000 hours Salt Spray CR and the zinc bake finish**1 4 20 x 1 1 2 Unslot HWH Self Drill Machine Full Thd #4 Point Zinc 1000 Hours Salt Spray** This self drilling screw is designed for use in metal applications. It has a 1 4 20 thread size and a 1 1 2 inch length. The screw is made of steel and has a zinc coating for corrosion resistance. It has a #4 point for easy drilling and a full thread for maximum holding power. The screw has been tested to withstand 1000 hours of salt spray, making it ideal