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Item #:
204621887
#5-40 x 3/8" Button Head Socket Cap Screws, ASME B18.3, Alloy Steel, Black Oxide, 10 Pack
Item #:
204621887
USD 14
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:
Order now and get it around Tuesday, August 25
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Get the reliability and strength you need with our Alloy Steel Monster Bolts, designed for durability and performance.
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Note: Step 1 Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
High-Quality Material
Crafted from premium alloy steel, MonsterBolts provide exceptional strength and durability, ensuring reliable performance for various applications and long-lasting use without compromise.
Versatile Design
The button head socket cap screws feature a sleek black oxide finish, offering both aesthetic appeal and corrosion resistance, making them perfect for automotive, machinery, or DIY projects.
Convenient Packaging
Available in a ten-pack, MonsterBolts ensure you have ample supplies for your projects, reducing frequent trips to the hardware store and enhancing project efficiency with easy accessibility.
Product Details
- Diameter: #5
- Thread Pitch: 40 TPI - UNC / Coarse Thread
- Type: Button Head Socket Cap Screw, Hex Drive
- Drive: 5/64" Hex Key
- Materia : Alloy Steel w Thermal Black Oxide, 12.9 Equivalent
| Item Dimensions | 0.38 x 0.24 x 0.38 inches (1 x 0.6 x 1 cm) |
| Thread Size | #5-40 |
| Item Weight | 8.53 g |
| Thread Coverage | Fully Threaded |
| Fastener Size | 5-40 |
| Size Name | 0.375 In. (3/8") |
| Brand | MonsterBolts |
| Color | Black |
| Fastener Type | Machine Screw |
| Unit Count | 10 Count |
| Manufacturer | MonsterBolts |
| Part Number | BHCS-US-BO-5-40x3/8.0010 |
| Screw Head Style | Button |
| Screw Point Style | Flat Point |
| Head Type | Button |
| Thread Type | Unc |
| Set Screw Thread Type | UNC |
| Thread Style | Right Hand |
| Drive System | Internal Hex |
| Material Type | Alloy Steel |
| Exterior Finish | Black Oxide |
| Metal Type | Alloy Steel |
| Finish Types | Black Oxide |
| Material | Alloy Steel |
| Head Style | Button |
| Item dimensions L x W x H | 0.38 x 0.24 x 0.38 inches (1 x 0.6 x 1 cm) |
Who Should Buy?
-
DIY Enthusiasts
Perfect for home projects, these screws provide durability and ease of use for various applications.
-
Mechanical Engineers
Engineers can benefit from the precision and reliability of these screws for designs and prototypes.
-
Hobbyists
Ideal for model building and electronics, offering strong fastening solutions for intricate setups.
-
Outdoor Use
Not suitable for outdoor settings due to potential rusting despite black oxide finish.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What material are the Monster Bolts made from?
Answer: They are made from high-quality Alloy Steel with a Thermal Black Oxide finish. -
Question:
What is the size and threading of the bolts?
Answer: Each bolt is #5-40 x 1/4 with a thread pitch of 40 TPI - UNC / Coarse Thread. -
Question:
How many bolts come in a pack?
Answer: Each pack contains 10 Monster Bolts.
MonsterBolts Socket Head Screws Editorial Review
The MonsterBolts #5-40 x 3/8" Button Head Socket Cap Screws have garnered a positive reception from customers who required reliable and precise hardware for specific projects, particularly in firearms assembly. Users appreciate the exact match this product offers for their needs, highlighting the difficulty of sourcing such specific screws in local hardware stores. Known for their solid Construction, these alloy steel screws, finished in black oxide, have been described as excellent quality and dependable for various applications. Customers have voiced satisfaction with the purchase process, noting smooth transactions and speedy delivery. However, there seems to be a unanimous desire for a wider variety of sizes and lengths, indicating that while the current offering meets some needs perfectly, it may not cater to all potential requirements. Overall, the MonsterBolts button head socket cap screws appear to be a well-received product among DIY enthusiasts and professionals alike, appreciated for their reliability and fitment for specialized uses. **
Customer Reviews & Ratings
26 customers ratings
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5 Star
62%
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4 Star
20%
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3 Star
18%
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Pros
- Exact match for specific needs
- High-quality Construction
- Solid feel and performance
- Positive transaction experience
- Fast shipping
Cons
- Limited variety of sizes and lengths available
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
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kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
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Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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SAO JOHN
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“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
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- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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USD 14
Order now and get it around Tuesday, August 25
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:
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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
- High-quality Alloy Steel construction.
- Thermal Black Oxide finish for added protection.
- Button Head Socket Cap Screws with Hex Drive.
- Right Handed thread direction for easy installation.
- Available in a convenient 10 pack.
- Ideal for various fastening applications.
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