B1/2-13 x 4 MS90728, Alloy Steel B1821 Coarse Cap Screw Per ASTM A354BD Zinc Yellow DFAR ABTPB * External teeth bite into

* External teeth bite into the mating surface

These screws are ideal for use in applications where corrosion resistance is required

With its 4 3/4-inch length

while its 6-lobe flat head allows for easy driving and prevents cam-out

B1/2-13 x 4 MS90728, Alloy Steel B1821 Coarse Cap Screw Per ASTM A354BD Zinc Yellow DFAR ABTPB * External teeth bite intoB1 2 13 x 4 MS90728, Alloy Steel B1821 Coarse Cap Screw Per ASTM A354BD Zinc Yellow DFAR is a high quality, durable screw designed for use in a variety of applications. It is made from alloy steel B1821, which is known for its strength and resistance to corrosion. The screw has a coarse thread pitch, which provides a secure hold in a variety of materials. The zinc yellow coating provides additional corrosion resistance, making the screw ideal for use