Anlock Blind Rivet Out-Bolt - Strong & Durable Fastening Solution
Product Overview:
Anlock Blind Rivet Out-Bolt is a high-performance structural blind rivet. The mandrel breaks on the outside with a clean, burr-free fracture surface, and the residual mandrel remains inside the rivet body to form a locking mechanism. Suitable for high-strength permanent connections where only one-sided access is available.
OB (Out-Bolt) vs IB (In-Bolt) — Key Differences:
| Characteristic | OB (Out-Bolt) | IB (In-Bolt) |
| Mandrel Break Location | Outside rivet body | Inside rivet body |
| Tail Appearance | Clean cut, scratch-free | Not visible (internal lock) |
| Anti-Loosening Mechanism | Residual mandrel lock + mechanical lock ring | Internal bolt locking mechanism |
| Installation Confirmation | Visual fracture confirmation | Tool force feedback confirmation |
Dimensions & Grip Range:
Metric / Inch Dimensional Chart:
|
Nominal Dia. D |
Body Actual OD Ø |
Length L |
Grip Range |
|
4.8 mm (3/16") |
Ø 4.9 ~ 5.0 mm (.193" ~ .197") |
10.0 mm (3/8") |
1.57 ~ 6.86 mm (0.06" ~ 0.27") |
|
4.8 mm (3/16") |
Ø 4.9 ~ 5.0 mm (.193" ~ .197") |
14.0 mm (9/16") |
1.57 ~ 11.1 mm (0.06" ~ 0.44") |
|
6.4 mm (1/4") |
Ø 6.5 ~ 6.6 mm (.256" ~ .260") |
14.0 mm (9/16") |
2.03 ~ 9.53 mm (0.08" ~ 0.38") |
|
6.4 mm (1/4") |
Ø 6.5 ~ 6.6 mm (.256" ~ .260") |
20.0 mm (13/16") |
2.03 ~ 15.88 mm (0.08" ~ 0.63") |
| Nominal Diameter | Drill Hole Diameter |
| 4.8 mm | 5.0 ~ 5.1 mm |
| 6.4 mm | 6.7 ~ 6.9 mm |
Material Options：
|
Configuration |
Body |
Mandrel |
|
Steel / Steel |
Carbon Steel |
Carbon Steel |
|
Aluminum / Aluminum |
Aluminum Alloy |
Aluminum Alloy |
|
Stainless Steel / Stainless Steel |
Stainless Steel (A2/304 or A4/316) |
Stainless Steel (A2/304 or A4/316) |
Mechanical Properties:
Steel Body / Steel Mandrel:
|
Nominal Dia. |
Shear Strength |
Tensile Strength |
|
4.8 mm |
5,780 N (1,300 lbf) |
4,440 N (998 lbf) |
|
6.4 mm |
11,120 N (2,500 lbf) |
8,220 N (1,847 lbf) |
Aluminum Alloy Body / Aluminum Mandrel:
|
Nominal Dia. |
Shear Strength |
Tensile Strength |
|
4.8 mm |
2,600 N (598 lbf) |
2,000 N (449 lbf) |
|
6.4 mm |
5,780 N (1,300 lbf) |
3,690 N (829 lbf) |
Stainless Steel Body / Stainless Steel Mandrel:
|
Nominal Dia. |
Shear Strength |
Tensile Strength |
|
4.8 mm |
5,780 N (1,300 lbf) |
4,440 N (998 lbf) |
|
6.4 mm |
10,670 N (2,398 lbf) |
8,220 N (1,847 lbf) |
Head Type& Surface Finish:
|
Parameter |
Specification |
|
Head Type |
Dome Head (Round Head) |
|
Surface Finish (Steel) |
Bright (Uncoated) / Zinc Plated / Yellow Zinc Plated |
|
Surface Finish (Aluminum) |
Polished |
|
Surface Finish (Stainless Steel) |
Passivated |
Installation Process:
1. Drill Hole Drill hole to recommended diameter. Ensure hole wall is clean and free of burrs.
2. Insert Rivet Insert the Out-Bolt into the pre-drilled hole from one side.
3. Attach Tool Fit the rivet tool nose piece onto the mandrel.
4. Set & Form Activate the tool; the mandrel pulls until fracture, expanding the rivet body to lock.
5. Fracture Confirmation Mandrel breaks cleanly on the outside. Residual mandrel locks the rivet body — providing visual installation confirmation.
Recommended Installation Tool: Pneumatic/Hydraulic structural rivet tool with compatible nose pieces for 4.8 mm and 6.4 mm.
Why choose Fasto:
Choose Fasto Anlock Out-Bolt structural blind rivets for visible outer mechanical anti-vibration lock, full hole sealing, high structural load capacity and one-side blind assembly. We offer aluminum, steel and stainless steel options with full certification, stable mass production and cost-effective factory supply for automotive, solar, rail and electrical heavy-duty connections.
