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Item #:
113675959
5/16-18 x 1" Flat Head Socket Cap Screws Countersunk Bolts, Class 10.9 Alloy Steel, Black Oxide, 25 PCS
Item #:
113675959
WST 52
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
In stock
Imported from USA store
QTY:
Only 3 items left in stock.
Order now and get it around Sunday, July 26
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The flat socket head enables driving where there is not sufficient space for wrenches or sockets, and allows the screw head to sit flush with the surface.
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
Product Details
- Product Type : Flat Head Socket Cap Screw; System of Measurement : Inch.
- Material : Class 10.9 Stainless Steel; Finish : Black Oxide.
- Head Diameter : 0.656 Inch; Head Height : 0.198 Inch; Allen Hex Drive Size : 3/16 Inch.
- Thread Size : 18 TPI; Screw Length : 1 Inch.
- Package : 25 PCS Flat Head Socket Cap Screws 5/16-18 x 1 Inch.
| Thread Size | 5/16"-18 (131109.7 cm) |
| Exterior Finish | Black Oxide |
| Manufacturer Grade | Grade 10 9 |
| Screw Head Style | Flat |
| Color | Black |
| Fastener Type | Socket Head |
| Thread Style | Right Hand |
| Item Hardness | Grade 10.9 |
| Head Type | Flat |
| Grade Rating | Class 10.9 |
| Screw Point Style | Flat Point |
| Drive System | Internal Hex |
| Material Type | Alloy Steel |
| Metal Type | Stainless Steel |
| Finish Types | Black Oxide |
| Item Diameter | 7.94 Millimeters |
| Size Name | 5/16-18 x 1" (131109.7 cm) |
| Number of Pieces | 25 |
| Thread Coverage | Fully Threaded |
| Brand | Bykonh |
| UPC | 754525552970 |
| Manufacturer | Bykonh |
| Model | 101.109.51618X10-25 |
| Part Number | 101.109.51618X10-25 |
| Unit Count | 25.0 Count |
| Material | Alloy Steel |
| Head Style | Flat |
| Item Weight | 1 lbs (450 grams) |
Who Should Buy?
-
Mechanical Engineers
Ideal for engineers requiring reliable fasteners for machinery assemblies or structural components ensuring strong hold.
-
DIY Enthusiasts
Great for home projects like furniture assembly or repairs, providing strength and stability in various applications.
-
Automotive Technicians
Suitable for securing components in vehicles, offering high tensile strength and resistance to wear during operation.
-
Light-Duty Applications
Overkill for projects needing lightweight solutions, as these are heavy-duty bolts designed for more robust use.
-
Corrosive Environments
Not ideal for outdoor or marine use without additional corrosion protection, as they can rust over time.
-
Non-Mechanics
Amateur hobbyists or users unfamiliar with fasteners may find installation and application challenging without guidance.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the thread diameter of these screws?
Answer: The thread diameter is 5/16 inch. -
Question:
What material are these screws made of?
Answer: They are made of Class 10.9 Alloy Steel. -
Question:
How many screws are included in each package?
Answer: Each package includes 25 Flat Head Socket Cap Screws.
Bykonh Socket Head Screws Editorial Review
No editorial reviews found
Customer Reviews & Ratings
109 customers ratings
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5 Star
83%
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4 Star
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3 Star
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1 Star
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MT
Mohd
Verified buyer
“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
SJ
Shawati
Verified buyer
“Accurate delivery timing given”
16 June 2026 · via Trustpilot
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Youcef
Verified buyer
“Not madly expensive like I thought, and much quicker than promised.”
15 June 2026 · via Trustpilot
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“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”
6/7/2026 · via Trustpilot
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Kwame
Verified buyer
“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
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WST 52
Order now and get it around Sunday, July 26
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Only 3 items left in stock.
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PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
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Fastest cross-border delivery
Features & Benefits
- Ideal for tight spaces due to its flat socket head design.
- Screw heads sit flush with surfaces for a clean look.
- Made from durable Class 10.9 Alloy Steel for strength.
- Available in lengths from 1/2 to 3 inches.
- Includes 25 pieces in each package for extensive use.
- Perfect for machine parts, die fixturing, and clamping applications.
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