
You can check the price history of 5 /16-18 x 3-1 /2 inch Hex Head Bolts Black, 304 Stainless Steel 18-8 Hexagon Head Screws Bolts, Black Oxide Finish, Allen Hex Drive, 10 PCS here. This product's current Price in USA is $9.99. The average and highest prices are $9.82 and $9.99 respectively.
| Lowest Ever Price | $7.99 |
|---|---|
| 23rd Feb 2026 | |
| Average Price | $9.82 |
| Based on 74 days price tracking | |
| Highest Price | $9.99 |
| 10th Mar 2026 | |
| Price | $9.99 |
|---|---|
| MRP | $37.99 |
| Savings | $28.00 |
| Discount | 73.70% |
| Product Name | 5 /16-18 x 3-1 /2 inch Hex Head Bolts Black, 304 Stainless Steel 18-8 Hexagon Head Screws Bolts, Black Oxide Finish, Allen Hex Drive, 10 PCS |
|---|---|
| Store Product Code | B0CNQQSLPX |
| Store Name | amazon.com |
| Rating | 10 / 10 |
| Category | Hex Bolts |
| Product Manufacturer | EASTLO |
| Color | Black |
| Size | 5/16-18 x 3-1/2" |







5 16-18 x 3-1 2 inch Hex has 10 rating out of 10. This average rating is consist of 15 individual ratings. You can rate this product at product review page.