BN/BB -BLIND NUT(BN™️) and BLIND BOLT(BB™️) Fasteners
Hi-Shear Blind Fasteners
Blind fastener systems can be split into two main categories: BLIND NUTS “BN”, and BLIND BOLTS “BB”. BLIND NUT
fasteners have a female thread installed from one side into a structure, which later in the assembly process will
receive a bolt. BLIND BOLTS are definitive blind fasteners allowing assembly from one side and are widely used for
closed structures such as flaps, spoilers and ailerons.
Jet-Tek can supply all standard BLIND NUT and BLIND BOLT assemblies, please contact our sales department for
assistance with selecting the right assembly for your application. We have most standard BN and BB assemblies
available to ship within 1-2 days, with OEM certifications included. Please call or email our sales department for
pricing and delivery information on your specific requirement. Our sales department can be reached at (800) 804-7876.
Click Here to Request an Online Quote
BLIND NUT Fasteners (BN)
The BN, BLIND NUT is a simple and robust solution. BLIND NUT fastners are designed as a two component system combining
a high strength threaded expander with a choice of sleeve in multiple materials and shapes depending on the targeted
application. The BLIND NUT installation is suitable instead of conventional nut plates where a closed structure does
not allow access from the back. Additionally, where the sub-structure does not allow holes to be drilled for the
installation of conventional nut plates.
| hi-shear CORPORATION 2600 Skypark Drive Torrance, California 90509 |
Shear CSK Head | Shallow CSK Head | Shallow CSK Head with Knurled Shank | Standard Protruding Head | Standard Protruding Head with Knurled Shank | ||
| Materials and Finishes | Suggested Maximum Temperature for use (°F) |  |
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| Sleeve | Expander | “B” Tooling | “B” Tooling | “B” Tooling | “C” Tooling | “C” Tooling | |
| 305 S.S. Sandblast | 431 S.S. Cadmium Plate | 450° | BN359 | BN360* BN360.64 BN521 |
BN356 BN519LH |
||
| 305 S.S. | 431 S.S. Silver Plate | 450° | BN514 | ||||
| 305 S.S. | 431 S.S. Cadmium Plate | 450° | BN516 | BN540 | |||
| 305 S.S. Cadmium Plate | 431 S.S. Cadmium Plate | 450° | BN359PB | BN360PB | BN516PB | BN356PB | BN540PB |
| 305 S.S. Sandblast | 431 S.S. Silver Plate | 450° | BN557 | BN356G | |||
| 305 S.S. Sandblast | A-286 alloy Solid Film Lubricant | 500° | BN520 | BN525 | BN542 | ||
| 347 S.S. Sandblast | A-286 alloy Solid Film Lubricant | 500° | BN523 | ||||
| A-286 Alloy Sandblast | A-286 alloy Silver Plate | 1200° | BN565 | BN549 | |||
| 2017 Al | 431 S.S. Cadmium Plate | 250° | BN518 | ||||
* Note: BN360 is recommended for general purpose use.
Blind SertTM BLIND NUT (BN)
BN528BN532
Complete set of BN standards:
| BN126 | BN130 | BN134 | BN135 | BN141 | BN163 | BN325 | BN338 | BN338.64 | BN356 |
| BN357 | BN359 | BN360 | BN360.64 | BN362 | BN372 | BN372p | BN377 | BN380 | BN387 |
| BN388 | BN389 | BN514 | BN516 | BN518 | BN519lh | BN520 | BN521 | BN523 | BN525 |
| BN526 | BN527 | BN528 | BN530 | BN532 | BN533 | BN535 | BN536 | BN537 | BN538 |
| BN540 | BN542 | BN543 | BN545g | BN546 | BN549 | BN555 | BN555g | BN556g | BN557 |
| BN562 | BN565 | BN566 | BN568 | BN1356 | BN1360 | BN1556g | BN1557 | BN1558 |
BLIND BOLT Fasteners (BB)
The LISI AEROSPACE family of BB, BLIND BOLTs delivers valuable solutions for most blind fastening needs. Two component
sleeve and expanders allows for a wide variety of head style and material combinations. The core bolts are similar to
conventional bolts, and the expanders are simple and robust elements providing reliable high strength capability to
the system. If you would like more information on these versatile fasteners, please contact our sales department at
(800) 804-7876.
| hi-shear CORPORATION 2600 Skypark Drive Torrance, California 90509 |
MS24694 (AN509) CSK Head |
MS20426 (AN426) CSK Head |
Protruding Head | |||
| Materials and Finishes | Suggested Maximum Temperature for use (°F) |  |
 |
 |
||
| Sleeve | Expander | Core Bolt and Type Recess | “J” Tooling | “K” Tooling | “J” Tooling | |
| 305 S.S. | 431 S.S. Cadmium Plate |
431 S.S. Hi-Torque Phillips Torq-Set Frearson |
450° | BB351* BB351.32 BB351.64 |
BN382 | BB352* BB352.32 BB352.64 |
| 305 S.S. Cadmium Plate |
431 S.S. Cadmium Plate |
431 S.S. Hi-Torque Phillips Torq-Set |
450° | BB351P BB351.32P BB351.64P BB351PB BB351.32PB BB351.64PB |
BB352P BB352.32P BB352.64P BB352PB BB352.32PB BB352.64PB |
|
| 305 S.S. | 431 S.S. Silver Plate |
431 S.S. Hi-Torque Phillips Torq-Set |
450° | BB351G BB351.32G BB351.64G |
BB352P BB352.32P BB352.64P BB352PB BB352.32PB BB352.64PB |
|
| 305 S.S. | 17-4PH S.S. Cadmium Plate |
17-4PH S.S. Hi-Torque Phillips |
450° | BB399 | BB402 | |
| A-286 Alloy | 431 S.S. Silver Plate |
A-286 Alloy Hi-Torque Phillips Frearson |
450° | BB365 BB379 |
BB368 BB381 |
BB366 BB380 |
| A-286 Alloy | A-286 Alloy Silver Plate |
A-286 Alloy Hi-Torque Phillips Frearson |
1200° | BB391 | ||
| A-286 Alloy | A-286 Alloy Solid Film Lubricant |
A-286 Alloy Hi-Torque Frearson |
1200° | BB445 | BB517 | |
* Note: BB 351 and BB 352 are recommended for general purpose use.
Complete set of BB standards:
| BB120 | BB134 | BB140 | BB159 | BB166 | BB167 | BB351 | BB351f | BB351.64 | BB352.32 |
| BB352 | BB352f | BB352.64 | BB352.32 | BB362 | BB363 | BB365 | BB366 | BB368 | BB369 |
| BB370 | BB371 | BB379 | BB380 | BB381 | BB382 | BB386 | BB391 | BB391.64 | BB392 |
| BB399 | BB402 | BB420G | BB432 | BB436 | BB437 | BB441 | BB444 | BB444.64 | BB444.32 |
| BB445 | BB452 | BB456 | BB460 | BB515G | BB517 | BB518 | BB569 | BB572 | BB575 |
| BB588 | BB596 | BB597 | BB700 | BB704 | BB704.64 |