B1/2-13 x 1 1/2 MS90728, Alloy Steel B1821 Coarse Cap Screw Per ASTM A354BD Zinc Yellow DFAR FPU This 1/2-13 x 3 1/4

This 1/2-13 x 3 1/4 inch carriage bolt is made of 18-8 stainless steel for excellent corrosion resistance

This 1 1/4-7 x 2 1/2 Hex Cap Screw is made of Grade 2 steel and has a zinc coating

High Collar Split Lock Washers are designed to prevent nuts and bolts from loosening due to vibration or movement

- **Finish**: Black oxide and oil for corrosion resistance and durability

which is a strong and durable material that is resistant to corrosion

B1/2-13 x 1 1/2 MS90728, Alloy Steel B1821 Coarse Cap Screw Per ASTM A354BD Zinc Yellow DFAR FPU This 1/2-13 x 3 1/4B1 2 13 x 1 1 2 MS90728 is an Alloy Steel B1821 Coarse Cap Screw. It is manufactured in accordance with ASTM A354BD standards and has a zinc yellow DFAR finish. The screw has a diameter of 1 2 inch, a length of 1 1 2 inches, and a thread pitch of 13 threads per inch. It is designed for use in high strength applications and is commonly used in the aerospace, automotive, and construction industries.