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🔩 Hook into reliability with National Hardware’s zinc-plated power bolts!
National Hardware’s N221-689 2162 Hook Bolts deliver industrial-grade strength with a corrosion-resistant zinc finish. Sized at 5/16" x 5", these Grade 5 steel bolts feature standard machine screw threads and hex heads for easy installation, making them ideal for both interior and exterior fastening needs across home, farm, and industrial applications.
| Material | Plastic |
| Thread Size | 5/16"-18 |
| Exterior Finish | Zinc |
| Manufacturer Grade | Grade 5 |
| Head Style | Hex |
| Color | Zinc Plated |
| Fastener Type | Hexagon Bolt |
| Brand | National Hardware |
| Thread Type | Unc |
| Item Diameter | 0.63 Inches |
| Thread Style | Right Hand |
| Item Hardness | Grade 5 |
| Size | 5/16" x 5" |
| Metal Type | Zinc |
| Head Type | Hexagonal |
| Thread Class | 2A |
| Number of Pieces | 2 |
| UPC | 038613124127 |
| Global Trade Identification Number | 00038613124127 |
| Manufacturer | National Hardware |
| Part Number | N221-689 |
| Item Weight | 0.01 ounces |
| Item model number | N221-689 |
| Is Discontinued By Manufacturer | No |
| Finish | Zinc plated |
| Shape | Straight With Hook |
| Item Package Quantity | 1 |
| Cutting Diameter | 0.63 Inches |
| Measurement System | Metric |
| Mounting Type | Plate Mount |
| Included Components | National Hardware N221-689 2162 Hook Bolts in Zinc, 5/16" x 5" |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Warranty |
B**G
Very sturdy
Perfect for hanging bird feeders! Sturdy and would buy again if needed.
J**G
Five Stars
GREAT PRODUCT, GREAT PRICE, GREAT SERVICE!
J**5
This hook bolt is perfect for mounting and adjusting a garage door spring.
This hook bolt is long enough to provide plenty of adjustability and strong enough to hold spring tension.
K**O
Only one nut. Not two as pictured.
I purchased two of these for my garage door. Product photo shows two nuts on the hook, but what I received only has one nut.
R**.
It's a hook. Works as expected. Arrived on ...
It's a hook. Works as expected. Arrived on time.
T**R
Five Stars
it fixed my problem
C**K
Five Stars
works great
A**R
Good quality.
Too much money for a plain hook, but saved me the trouble of searching in a hardware store.
Trustpilot
2 weeks ago
1 week ago