• Mil spec bolts of various sizes that are used in the military and aerospace industry.
Click image to enlarge

Hex Cap Screw Alloy B1821, MS90727 and MS90728

Military and aerospace certified Alloy B1821, MS90727 and MS90728 Hex Cap Screws from Integrity Fasteners are designed to meet the stringent guidelines of the Army-Navy and the Aerospace Industries Association for use in aircraft, space shuttles, military vehicles, drones, and other high-performance applications. This includes requirements for material type, strength, tolerances and manufacturing and finishing processes including passivation and the application of coatings.

Certified Supplier of Quality Mil-Spec Hex Cap Screws

Integrity Fasteners has been partnering with aerospace contractors for more than 25 years, and we're committed to meeting the unique needs of the industry. We are a qualified supply listed distributor for Class 2 & Class 3 fasteners to Defense Supply Center Philadelphia. We have earned Process Validation Assessment (PVA) approvals from many leading aerospace companies and we are ISO 9001:2015 certified.

Integrity Fasteners has a variety of Hex Cap Screw Alloy B1821, MS90727 and MS90728 bolts available for online quotation. Offered in Grade 5 (MS90725 and MS90726); Grade 8 alloy steel or Grade BD alloy steel with zinc coating. Several sizes are available meeting specifications B1821 or Grade 5 MS90725 and MS90726. View our products below and add items to your RFQ cart for an easy quote checkout. You can also continue browsing our other military and aerospace bolts to add more to your cart before placing an order. 

ALLOY STEEL, GRADE 8, IN ACCORDANCE WITH ASTM A354, GRADE BD WITH ZINC COATING ASTM B633M FE/ZN5 ORFE/ZN8. ASTM B633 HYDROGEN EMBRITTLEMENT RELIEF REQUIREMENT SHALL APPLY.

 *Please select the quantity for each item you wish to order and click the 'Add To Quote' button below.