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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.
| ASIN | B000BOKOWO |
| Best Sellers Rank | #75,089 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #230 in Screw-In Hooks |
| Brand | National Hardware |
| Color | Zinc plated |
| Compatible Groove Diameter | 0.63 Inches |
| Customer Reviews | 4.6 out of 5 stars 49 Reviews |
| Drive System | External Hex |
| Exterior Finish | Zinc |
| Fastener Size | 5/16" x 5" |
| Fastener Type | Hexagon Bolt |
| Finish Types | Zinc plated |
| Global Trade Identification Number | 00038613124127 |
| Grade Rating | Grade 5 |
| Head Style | Hex |
| Head Type | Hexagonal |
| Included Components | National Hardware N221-689 2162 Hook Bolts in Zinc, 5/16" x 5" |
| Item Diameter | 0.63 Inches |
| Item Dimensions | 6.5 x 2.5 x 2.2 inches |
| Item Hardness | Grade 5 |
| Item Type Name | Stanley National Hardware N221-689 2162BC Hook Bolt Zinc plated, 5/16" x 5" |
| Item Weight | 0.01 Ounces |
| Manufacturer | National Hardware |
| Manufacturer Grade | Grade 5 |
| Material | Plastic |
| Material Type | Plastic |
| Metal Type | Zinc |
| Model | N221-689 |
| Number Of Items | 1 |
| Number of Pieces | 2 |
| Part Number | N221-689 |
| Screw Head Style | Hex |
| Screw Point Style | Cone Point |
| Size Name | 5/16" x 5" |
| Thread Class | 3B |
| Thread Coverage | Fully Threaded |
| Thread Size | 5/16"-18 |
| Thread Style | Right Hand |
| Thread Type | Unc |
| UPC | 038613124127 |
| Unit Count | 1.0 Count |
| Warranty Description | Warranty |
A**.
Works great
Used to support 185 lbs garage door spring tension. Works great.
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.
B**G
Very sturdy
Perfect for hanging bird feeders! Sturdy and would buy again if needed.
R**.
It's a hook. Works as expected. Arrived on ...
It's a hook. Works as expected. Arrived on time.
A**T
Five Stars
it fixed my problem
J**G
Five Stars
GREAT PRODUCT, GREAT PRICE, GREAT SERVICE!
C**K
Five Stars
works great
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.
Trustpilot
2 weeks ago
3 weeks ago