What size Phillips screwdriver do I need for these screws?

The required screwdriver size depends on the screw thread size you choose. For tiny M1 to M1.4 screws, you'll need a PH000 bit. Use a PH00 bit for M1.6 to M2. For M2.5 to M3, use PH0, and use PH1 for the M4 size.

Are these black carbon steel screws suitable for outdoor use?

These carbon steel screws are best for indoor projects. Their black coating provides only basic rust protection, so they might rust in wet environments. For outdoor applications, you should look for stainless steel fasteners instead.

What are the head angles and thread pitches for these countersunk screws?

These GB819 standard screws feature an 82-degree flat countersunk head to sit flush with your material. They feature standard metric coarse pitches ranging from 0.25mm for M1 up to 0.7mm for M4. Make sure to pre-drill your holes to get a clean, flush finish.

Flat Head Screws | Black Carbon Steel | 50-200pcs M1-M4 Countersunk Bolts

Name: Flat Head Screws | Black Carbon Steel | 50-200pcs M1-M4 Countersunk Bolts
Brand: Compel
SKU: FAST-00106
Price: 24.99 USD
Availability: InStock

Stock #:TBS-05633

SKU:FAST-00106

Flat Head Screws | Black Carbon Steel | 50-200pcs M1-M4 Countersunk Bolts - Image 1

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$24.99

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Flat Head Screws | Black Carbon Steel | 50-200pcs M1-M4 Countersunk Bolts

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Questions about this product

What size Phillips screwdriver do I need for these screws?: The required screwdriver size depends on the screw thread size you choose. For tiny M1 to M1.4 screws, you'll need a PH000 bit. Use a PH00 bit for M1.6 to M2. For M2.5 to M3, use PH0, and use PH1 for the M4 size.
Are these black carbon steel screws suitable for outdoor use?: These carbon steel screws are best for indoor projects. Their black coating provides only basic rust protection, so they might rust in wet environments. For outdoor applications, you should look for stainless steel fasteners instead.
What are the head angles and thread pitches for these countersunk screws?: These GB819 standard screws feature an 82-degree flat countersunk head to sit flush with your material. They feature standard metric coarse pitches ranging from 0.25mm for M1 up to 0.7mm for M4. Make sure to pre-drill your holes to get a clean, flush finish.

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Black carbon steel Phillips flat countersunk head screws in metric sizes M1 to M4, suitable for flush mounting in various materials.

Flat Head Screws | Black Carbon Steel | 50-200pcs M1-M4 Countersunk Bolts

Price$24.99

Rating4.9

Sold5,000+

Stock In stock

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This bulk assortment of Phillips flat head screws provides a reliable and cost-effective fastening solution for general-purpose projects. Made from black carbon steel, these GB819 standard countersunk screws ensure a strong hold and a flush surface finish when driven into pre-drilled holes. Features and Benefits - Black Carbon Steel Construction - Delivers reliable strength and durability for a wide range of general fastening tasks. - Phillips Cross Recessed Drive - A widely compatible drive type that allows for quick and easy installation with standard screwdrivers or bits. - Countersunk Flat Head - Sits flush or below the material surface for a smooth finish and to prevent snagging. - Bulk Quantity Options (50/100/200pcs) - Provides excellent value and ensures you have ample supplies for ongoing projects or repairs. Applications - Woodworking projects such as furniture assembly and cabinetry. - General repairs and maintenance around the home, workshop, or garage. - Fastening metal brackets, hinges, and light-duty fixtures.

Thread Size: M1, M1.2, M1.4, M1.6, M2, M2.5, M3, M4. Material: Carbon Steel. Drive Type: Phillips Cross Recess. Finish: Black. Head Type: Flat Countersunk. Product Type: Phillips Flat Countersunk Head Screw. Quantity Options: 50, 100, 200 pieces. Standard: GB819. Thread Pitch: Standard coarse pitch for each size. Coating Thickness (Black Oxide): Approx. 0.5-1.5 µm. Phillips Drive Size: PH000 (M1-M1.4), PH00 (M1.6-M2), PH0 (M2.5-M3), PH1 (M4). Thread Sizes: M1, M1.2, M1.4, M1.6, M2, M2.5, M3, M4. Material: Carbon Steel. Standard: GB819 (Chinese National Standard for countersunk head screws). Thread Pitch (Standard Metric Coarse): M1: 0.25mm, M1.2: 0.25mm, M1.4: 0.3mm, M1.6: 0.35mm, M2: 0.4mm, M2.5: 0.45mm, M3: 0.5mm, M4: 0.7mm. Application: General metalworking, machinery, DIY where flush surface is required. Corrosion Resistance: Limited (basic rust protection from black coating). Drive Type: Cross Recessed (Phillips). Head Angle: 82° (standard for countersunk head per GB819). Head Type: Flat Countersunk Head (82° standard). Pack Quantity Options: 50, 100, or 200 pieces. Surface Treatment/Finish: Black (likely black oxide or phosphate coating). Tensile Strength (Typical Carbon Steel): 400-550 MPa (Grade approx. 4.8). Q: What sizes and quantities are available for these countersunk Phillips screws? A: These screws are available in quantities of 50, 100, or 200 pieces. The metric thread sizes range from M1 up to M4, including M1, M1.2, M1.4, M1.6, M2, M2.5, M3, and M4.. Q: What is the material and finish of these flat head screws? A: These screws are made from black carbon steel. They feature a Phillips cross-recessed drive and a flat countersunk head designed to sit flush with the material surface.. Q: Are these screws manufactured to a specific standard? A: Yes, these screws conform to the GB819 standard, which is a specification for countersunk head screws. This ensures consistent dimensions and performance for compatible applications.. Q: Do these fasteners come with any warranty against defects? A: Product warranties are generally offered by the seller. For specific warranty information regarding material or workmanship defects, please refer to the seller's policy on the product page.. Q: Why are these screws considered a practical purchase? A: Offering a bulk assortment of small metric sizes with a common Phillips drive and flush-mounting design, these screws provide cost-effective solutions for woodworking, electronics, and general repairs..

Flat Head Screws | Black Carbon Steel | 50-200pcs M1-M4 Countersunk Bolts

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