Dorman 963-397 Socket Head Cap Screw - Grade 8 - Black Zinc - 5/16-18 X 1 Inch
Confirm Fitment Before You Buy
Not sure it fits? Message Year/Make/Model/Engine (2WD/4WD if applicable) and we’ll help confirm compatibility.
Why buy from Koskowski Automotive?
• 50+ years (since 1972) • Dorman Authorized Seller • Fast shipping • Easy returns
Regular price
$9.59
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Vehicle Fitment: Use the table below to match your exact configuration. If you don’t see your exact setup, message us before ordering.
Dorman offers a comprehensive selection of screws for almost any automotive fastening job. A large selection of diameters, lengths and quantities are available in different assortments and/or kits. A multitude of thread varieties are available. Check the product details to make sure you have the right size and quantity for what you need.
- Various styles - available in many head styles including round, flat, pan, oval, truss, hex and star
- Various uses - can fasten specific areas and components of a vehicle like factory equipment or be used elsewhere that calls for a similar fastener
- Durable construction - these screws are made from quality components to ensure reliable performance and a long service life
- Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience
Vehicle Fitment
Universal part - not specific to one vehicle. Check the specifications below for size and fit.
Please confirm the part number and your vehicle's year, make, model and engine before ordering. Questions? Message us with your VIN and we'll check fitment for you.
Specifications
| Brand | Dorman |
|---|---|
| Part Number | 963-397 |
| UPC | 194883738195 |
| Head Drive Type | Allen Key |
| Material | Steel |
| Thread Direction | Clockwise (Right) |
| Color | Black |
| Type | Socket |
| Finish | Black Zinc |
| Thread Type | Coarse; UNC |
| SAE or Metric | SAE |
| Shank Diameter | 0.3125 |
| Head Diameter | 0.46 in. |
| Head Shape | Round |
| Heat Hardened | No |
| Specialty | No |
| Self Drilling | No |
| Self Tapping | No |
| Thread Length | 1 in. |
| Grade Type | Standard Replacement |
| Thread Size | 5/16 - 18 in |
| Overall Length | 1.31 in. |
| FQA Compliant | Yes |
| ACQ Rated | No |
| Screw Grade | Standard |
| Callout Size | 5/16-18 X 1 in |
| Diameter | 0.3125 in |
| Drive Style | Hex |
| Fastener Length | 1 in |
| Fastener Length (In) | 1 in |
| Fastener Plating | Black Zinc |
| Head Tool Size | 1/4 in |
| Package Contents | 2 Socket Head Cap Screws |
| Screw Name | Socket Head Cap |
| Screw Style | Socket Head Cap |
| Screw Type | Socket Head Cap |
| Shank Included | No |
| Size Number | #20 |
| Thread Diameter | 5/16 in |
| Thread Pitch | 18 |
| Threads Per Inch | 18 |
| Washer Attached | No |
| Country of Origin | China |
| Warranty | Limited Lifetime |