Allfast is emerging as a supplier of choice for blind bolts. Incorporating an engineered approach to lean manufacture and continuous improvement, Allfast is qualified by major OEMs for both standard grip and extended grip configurations. Whether your application is metallic or composite, Allfast has the right blind bolt for you.
Standard Blind Bolts
A blind fastener designed for use in metallic and composite structures provides cost effective one sided installation.
Key Features:
- Ideal for Metallic and Composite Structure
- Mechanical, Inspectable Lock
- Large Blind side footprint
- Good joint preload
- Multiple finish options
- Multiple head styles
The Allfast standard blind bolt three piece fastener, consisting of a pin, sleeve, lock collar, provides dependable installations. This fastener performs well in all metallic structures and can also be used in composite structures.
The pin is drawn into the sleeve, causing the sleeve to bulb against the blind side sheet. This bulb bears against the structure applying preload to the joint. The collar is driven into mating cavities between the sleeve and pin and provides an inspectable, mechanical lock ensuring positive installation. With the optional drive anvil added to the assembly, the installation tooling is further simplified providing trouble free performance.
The Standard Blind Bolt is is available in 5, 6 and 8 diameters. This fastener is composed of Cres pin and sleeve material. This fastener is supplied with multiple sleeve finish options. The Standard Blind Bolt is available in Universal and 100 degree Flush head styles.
Standard Blind Bolts Part Numbers & Technical Drawings:
| Part Family | Prefix | Sleeve Material | Pin Material | Head Style | Shank Type | Technical Drawing |
|---|---|---|---|---|---|---|
| Standard Blind Bolt | AF7620 | A-286 Cres | A-286 Cres | 100 Degree Flush | Nominal |  AF7620-REV-L.pdf |
| Standard Blind Bolt | AF7621 | A-286 Cres | A-286 Cres | Universal | Nominal | AF7621-REV-J.pdf |
Extended Grip Blind Bolts
A blind fastener designed for use in metallic and composite structure provides cost effective one sided installation.
Key Features:
- Ideal for Composite Structure
- Mechanical, Inspectable Lock
- Generous Blind side footprint
- Good joint preload
- Multiple finish options
- Multiple head styles
- Uses simplified installation tooling
- Can be used with Robotic installation systems
The Allfast Extended Grip Blind Bolt is a four piece fastener, consisting of a pin, sleeve, lock collar, and drive anvil, provides dependable installations. This fastener performs well in all metallic structures and can also be used in composite structures.
The pin is drawn into the sleeve, causing the sleeve to bulb against the blind side sheet. This bulb bears against the structure applying preload to the joint. The fastener is engineered to perform in conditions slightly over or under standard grip conditions often found in composite applications. The collar is driven into mating cavities between the sleeve and pin and provides an inspectable, mechanical lock ensuring positive installation. With the drive anvil as part of the assembly, the installation tooling is further simplified providing trouble free performance.
The Extended Grip Blind Bolt is available in 5, 6 and 8 diameters. This fastener is composed of Cres pin and sleeve material. This fastener is supplied with multiple sleeve finish options. The Standard Blind Bolt is available in Universal, 100 degree Flush, 100 degree reduced and 130 degree flush head styles.
Extended Grip Blind Bolts Part Numbers & Technical Drawings:
| Part Family | Prefix | Sleeve Material | Pin Material | Head Style | Shank Type | Technical Drawing |
|---|---|---|---|---|---|---|
| Extended Grip Blind Bolt | AF7822 | A-286 Cres | A-286 Cres | 130 Degree Flush | Nominal | AF7822-REV-A.pdf |
| Extended Grip Blind Bolt | AF7827 | A-286 Cres | A-286 Cres | 100 Degree Reduced Flush | Nominal | AF7827-REV-A.pdf |
| Extended Grip Blind Bolt | AF7828 | A-286 Cres | A-286 Cres | 100 Degree Flush | Nominal | AF7828-REV-B.pdf |
| Extended Grip Blind Bolt | AF7829 | A-286 Cres | A-286 Cres | Universal | Nominal | AF7829-REV-A.pdf |