B1821

B1821AH - ASTM A354 BD Cadmium Yellow

B1821BH - ASTM A354 BD Zinc Yellow

View the B1821 part numbering scheme by clicking here
B1821 series is available with the following features:
  • Coarse threaded
  • Fine threaded
  • D - Drilled head with each hole chamfered on the outside edge
  • L - Self-locking
  • C - Drilled head and self-locking
B1821 supersedes MS90728
MS90728 Obsolete*

MS90728F - Cadmium Yellow

MS90728G - Zinc Yellow

MS90728 has been canceled, and is superseded by B1821 cancellation notice
To find the correlative B1821 fastener, click here
* BGM Fastener may supply product to a specific revision if required.
* BGM Fastener may supply product dually certified to MS90728 and B1821.
B1821 supersedes MS90727
MS90727 Obsolete*

MS90727E - Cadmium Yellow

MS90727F - Zinc Yellow

MS90727 has been canceled, and is superseded by B1821 cancellation notice
To find the correlative B1821 fastener, click here
* BGM Fastener will not supply product certified to MS90727 canceled part numbers
ASTM/ASME B18.24

Part Identifying Number (PIN) Code.

The new ASME B18.24 Part Identifying Number (PIN) Code System Standard for B18 Fasteners provides users with the ability to specify and identify all ASME B18 fastener products using a single 18-digit PIN code system. It is intended to provide all users with the capability to identify externally threaded, internally threaded, and non-threaded fastener products. The B18 PIN is a self-contained code, with distinct identification linkage to individual ASME B18 fastener product standards. The PIN code concept provides for direct traceablity back to the applicable B18 standard.
*Note: BGM Fastener is unable to supply you with a copy of this standard, B18.24 is copyright protected and cannot be disseminated. If you require this standard please visit the ASME B18.24 page
B18231

B18231A Cadmium Yellow

B18231B Zinc Yellow

View the B18231 part numbering scheme by clicking here
B18231 series is available with the following features:
  • Coarse threaded
  • D - Drilled head with each hole chamfered on the outside edge
  • L - Self-locking
  • C - Drilled head and self-locking
Proprietary Customer Drawings
BGM Fastener offers product to customer supplied proprietary drawings from:
  • General Dynamics
  • L-3 Communications
  • Lockheed Martin
  • BAE
  • Tacom
MS Number