





🔧 Hook into strength and style — don’t get left hanging!
The National Hardware N221-697 3/8" x 7" Hook Bolt is a zinc-plated steel fastener designed for versatile indoor and outdoor applications. Featuring a safe working load of 135 lbs and included hex nuts for easy installation, this durable hook bolt offers corrosion resistance and reliable performance backed by over 100 years of manufacturing expertise.











| Material | Plastic |
| Thread Size | 3/8 |
| Exterior Finish | Zinc |
| Manufacturer Grade | National Hardware |
| Head Style | Hex |
| Color | Zinc Plated |
| Fastener Type | Hexagon Bolt |
| Brand | National Hardware |
| Thread Type | Standard Machine Screw |
| Item Diameter | 0.38 Inches |
| Thread Style | Right Hand |
| Item Hardness | Grade 8 |
| Size | 3/8" x 7" |
| Metal Type | Zinc |
| Head Type | Hex |
| Thread Class | 2A |
| Maximum Shear Strength | 135-150 lbs |
| Number of Pieces | 1 |
| UPC | 033923927123 038613124080 |
| Global Trade Identification Number | 00038613124080 |
| Manufacturer | National Hardware |
| Part Number | N221-697 |
| Item Weight | 0.01 ounces |
| Item model number | N221-697 |
| Is Discontinued By Manufacturer | No |
| Finish | Zinc plated |
| Shape | L-shape |
| Item Package Quantity | 1 |
| Cutting Diameter | 0.38 Inches |
| Measurement System | Inch |
| Mounting Type | Plate Mount |
| Included Components | National Hardware N221-697 2162 Hook Bolts in Zinc, 3/8" x 7" |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Warranty |
C**A
Perfect
Good price, worked well!
M**N
Works as adverised
Garage door spring
J**N
Five Stars
works as intended, when your local hardware store is out, I have no problem ordering these again
L**L
Worked for the fix but got bent
Bent a little under a good amount of pressure admittingly, but I thought it should have been sturdier.
Trustpilot
1 month ago
1 week ago