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The National Hardware N221-689 2162BC Hook Bolt is a 5/16" x 5" zinc-plated, Grade 5 steel hook bolt designed for both interior and exterior applications. Featuring standard machine screw threads and including two hex nuts, it offers reliable fastening and corrosion resistance, making it ideal for demanding home, farm, and industrial uses.
| ASIN | B000BOKOWO |
| Best Sellers Rank | #101,305 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #294 in Screw-In Hooks |
| Brand | National Hardware |
| Color | Zinc plated |
| Compatible Groove Diameter | 0.63 Inches |
| Customer Reviews | 4.7 out of 5 stars 51 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
3 weeks ago
1 month ago