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Updated: 21 May 2026

10 Best Machine Screws

#1 Best Pick
30 Pcs M4-0.7x70mm Flat Head Machine Screws, Phillips Cross Screw, Phillips Drive,304 Stainless Steel, Fasteners Bolts,Countersunk Machine Screws

30 Pcs M4-0.7x70mm Flat Head Machine Screws, Phillips Cross Screw, Phillips Drive,304 Stainless Steel, Fasteners Bolts,Countersunk Machine Screws

Brand: SDY
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  • Product Name: Phillips Head Screw; Thread Size: M4 x 70mm(D*L);
  • Drive Type: Phillips; Main Color: Silver Tone
  • Thread Size : M4 -0.7
  • Recommended Cross Wrench: PH2
  • Head Style: Flat Head; Material: 304 Stainless Steel; Package Content: 30 x Phillips Head Screw
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#2 Best Value
Zmbroll #8-32 185Pcs Phillips Pan Head Machine Screws 304 Stainless Steel Machine Screw Full Thread Fasteners Bolts Nuts and Washers Assortment Kit

Zmbroll #8-32 185Pcs Phillips Pan Head Machine Screws 304 Stainless Steel Machine Screw Full Thread Fasteners Bolts Nuts and Washers Assortment Kit

Brand: Zmbroll
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  • Versatile Assortment: Our set includes a wide variety of machine screws in different sizes:8 Sizes 8#-32 most commonly used size pan head screws,the length are 8#-32*1/4",8#-32*5/16",8#-32*3/8",8#-32*1/2",8#-32*5/8", 8#-32*3/4",8#-32*7/8",8#-32*1",8# hex nuts and 8# flat washers
  • Premium Quality Material:Our pan head machine screw are made of high-quality 304 stainless steel,these machine screws provide unbeatable strength, durability, and corrosion resistance, ensuring long-lasting performance even in the harshest environments. screws can serve you for a long time
  • Phillips head machine screws thread Type :Machine screws; Drive Type :Phillips;Head Type: Pan Head; Threading:Right Hand, our screw matching a nut and a washer to meet all demands, fully threaded screws provide a stronger hold on metal than other screws
  • You will get 185Pcs 8#-32 Pan head cross machine screws,Easy to use:All our screws and nuts and washer are packed in a sturdy easy-use plastic storage box to install and use,transparent storage case with labeled compartments, making it easy to find the exact screw you need for your project, the quantity is enough for you to use at home or work
  • Wide Application: Stainless steel machine screws perfect for use in various industries, including automotive, construction, electronics, and more. These screws are suitable for tasks such as fastening metal parts, securing brackets, mounting equipment, and repairing appliances.
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#3 Budget Pick
Glarks 540Pcs Machine Screw Assortment Kit #6-32#8-32#10-24 Stainless Steel Phillips Pan Head Assorted Nuts Bolts and Flat Washers Set, 304 Stainless Steel Machine Screws Assortment Set

Glarks 540Pcs Machine Screw Assortment Kit #6-32#8-32#10-24 Stainless Steel Phillips Pan Head Assorted Nuts Bolts and Flat Washers Set, 304 Stainless Steel Machine Screws Assortment Set

Brand: Glarks
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  • ★【What You Get】: In this kit, you will get 80pcs #6-32 phillips pan head screws, 80pcs imperial hex nuts and 80pcs imperial flat washers; 60pcs #8-32 phillips pan head screws, 60pcs imperial hex nuts and 60pcs imperial flat washers; 40pcs #10-24 phillips pan head screws, 40pcs imperial hex nuts and 40pcs imperial flat washers. Total in 540pcs, 304 stainless steel machine screws assortment set are packed in a durable and sturdy box for easy identification.
  • ★【High Quality Material】: Machine screw assortment kit are made of high quality 304 stainless steel materials, which have smooth surface, high strength, not easy to deform, corrosion resistance and rust resistance, and they can ensure long time using and prolong screws lifespan. Please feel free to use it in humid and high temperature environments.
  • ★【Multiple Sizes】: Each model of phillips pan head screws comes in 4 different sizes, #6-32 phillips screws includes #6-32x1, #6-32x3/4, #6-32x5/8, #6-32x1/2; #8-32 phillips screw includes #8-32x1-1/4, #8-32x1, #8-32x5/8, #8-32x1/2; #10-24 phillips screw includes #10-24x7-1/2, #10-24x1, #10-24x3/4, #10-24x1/2. Some matching #6-32 #8-32 #10-24 hex nuts and flat washers are great for homeowners, mechanics and repairmen. Different sizes and enough quantities can meet your different daily needs.
  • ★【Product Workmanship】: 304 stainless steel machine screws assortment set with fine workmanship, even use it below the water line. The nuts and flat washers expand the contact area and reduce the pressure in order to protect the screws and parts. Compact and force uniform screw thread is not easy to out of shape and slid in the process of rolling and installation.
  • ★【Wide Application】: Phillips pan head machine screws nuts washers assortment kit can be seen everywhere in our daily lives. They are widely used for home decoration, industrial building materials, medical equipment, food industry, vehicle and ship parts, mechanical operations, etc. Machine screw combination set is also a perfect gift for men.
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#4 Top Choice
Zmbroll M3 Flat Round Head Screws 304 Stainless Steel Phillips Drive Machine Screws 235Pcs M3x5/6/8/10/12/14/16/20/25/30mm Fully Thread Electricians Screw Hardware Fastener Assortment kit

Zmbroll M3 Flat Round Head Screws 304 Stainless Steel Phillips Drive Machine Screws 235Pcs M3x5/6/8/10/12/14/16/20/25/30mm Fully Thread Electricians Screw Hardware Fastener Assortment kit

Brand: Zmbroll
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  • Package included:235pcs 304 stainless steel metric phillips flat thin head machine screws.total 10 sizes silver screws,they are M3x5/6/8/10/12/14/16/20/25/30mm, Available in different lengths and diameters to accommodate various needs,All our screws are packed in a sturdy easy-use plastic storage box to install and use,the quantity is enough for you to use at home or work
  • Premium Quality Material:Our pan head machine screw are made of high-quality 304 stainless steel,these machine screws provide unbeatable strength, durability, and corrosion resistance, ensuring long-lasting performance even in the harshest environments. screws can serve you for a long time
  • CM flat head screws head thickness:0.8-1mm,head diameter:5.7-6mm,screws Color:silver;Coating: Polishing,Measurement system:Metric, thread type :Machine screws; Drive Type :Phillips;Head Type: Flat Thin Head;fully threaded screws provide a stronger hold on metal than other screws
  • Easy Installation: These computer screws are designed for easy installation, ensuring a hassle-free process. Their standard sizing and threading make them compatible with commonly used screwdrivers or tools, allowing for quick and straightforward assembly,These screws are very small screws,use for small appliances
  • Wide applications:the flat head machine screws can repair and installation for various occasions,this set is ideal for electrical panel screws or appliances, suitable for household, office equipment industry, the electronics industry, the communications industry, machinery, etc.
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#5 Popular Choice
Zmbroll 660Pcs M2 Button Head Hex Socket Cap Screws Fully Threaded Metric Machine Screws M2x4/6/8/10/12/16/20mm Mini Screw 10.9 Grade Alloy Steel Black Oxide Bolts Nuts Washer Assortment Kit

Zmbroll 660Pcs M2 Button Head Hex Socket Cap Screws Fully Threaded Metric Machine Screws M2x4/6/8/10/12/16/20mm Mini Screw 10.9 Grade Alloy Steel Black Oxide Bolts Nuts Washer Assortment Kit

Brand: Zmbroll
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  • Standard M2 metric button head socket cap bolts:Exterior Finish: Black Oxide;Drive Type: Hexagon Socket(1.5mm);Head Style:button head;Thread Size:M2;Grade Rating:Grade 10.9 alloy steel;Thread Dia.: 2mm; Pitch: 0.4mm.Head Diameter: 3.5 mm,NOTE: ALL SCREWS ARE COATED WITH ANTI-RUST OIL!
  • High Quality Material:Our button head screws are available in a variety of sizes and finishes to suit your specific needs,Made from durable and corrosion-resistant materials 10.9 Grade alloy steel with corrosion resistant black oxide finish to provide a reliable and long-lasting solution for your fastening needs
  • Package Included:660Pcs black hex socket button head cap screws nuts and washers and 2pcs black allen key,the size are: M2x4mm,M2x6mm,M2x8mm,M2x10mm,M2x12mm,M2x16mm,M2x20mm,each style 30pcs;150Pcs M2 nuts,150Pcs M2 flat washer 150Pcs M2 spring lock washers
  • Easy to use:All our hex bolts and nuts and washer are packed in a sturdy easy-use plastic storage box to install and use, make your job more convenient and easy,also enough quantity and style can meet your different needs, These screws are engineered with precise, uniform threads that ensure smooth and easy installation
  • Widely Application:This black button hex head cap screws set is perfect for a wide range of industrial and DIY projects.Suitable for household, office equipment industry, the electronics industry, the communications industry, machinery, etc. Ideal for a wide range of applications, including machinery, automotive, furniture assembly, and DIY projects.
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#6 Top Pick
Glarks 665Pcs 304 Stainless Steel M3 M4 M5 M6 Phillips Flat Head Machine Screws Bolts Nuts and Flat Gasket Spring Washers Assortment Set Full Thread

Glarks 665Pcs 304 Stainless Steel M3 M4 M5 M6 Phillips Flat Head Machine Screws Bolts Nuts and Flat Gasket Spring Washers Assortment Set Full Thread

Brand: Glarks
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  • 1. Product Type: High precision phillips flat head machine screws bolts nuts and flat gasket spring washers kit
  • 2. Product Material: Made of high quality 304 stainless steel, strong rust resistance, solid and not easy to break
  • 3. Package Include: Different size of M3 M4 M5 M6 screws nuts flat gasket spring washers total 665pcs in a clear box which are commonly used size, easy to use and install
  • 4. Product Feature: Phillips flat head screws which are highly versatile and are used to attached metal, wood, fiberglass, and plastic
  • 5. Application: Excellent for both indoor and outdoor use, commonly used in machinery, furniture, car and motorcycle repair and DIY inventions
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#7 Top Pick
Zmbroll 550Pcs M2 Phillips Pan Head Machine Screws M2x4/5/6/8/10/12/16/20mm Metric 304 Stainless Steel Screw Fully Thread Small Screws Fasteners Bolts Nuts and Flat Washers Assortment Kit

Zmbroll 550Pcs M2 Phillips Pan Head Machine Screws M2x4/5/6/8/10/12/16/20mm Metric 304 Stainless Steel Screw Fully Thread Small Screws Fasteners Bolts Nuts and Flat Washers Assortment Kit

Brand: Zmbroll
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  • Versatile Assortment: Our set includes a wide variety of machine screws in different sizes:8 Sizes M2 most commonly used size pan head screws,the length are M2x4mm,5mm,6mm,8mm,10mm,12mm,16mm,20mm,each size 30pcs,155pcs M2 hex nuts and 155pcs M2 flat washers,total 550Pcs in a clear box
  • Premium Quality Material:Our pan head machine screw are made of high-quality 304 stainless steel,these machine screws provide unbeatable strength, durability, and corrosion resistance, ensuring long-lasting performance even in the harshest environments. screws can serve you for a long time
  • Phillips head machine screws thread Type :Machine screws; Drive Type :Phillips;Head Type: Pan Head; Threading:Right Hand, our screw matching a nut and a washer to meet all demands, fully threaded screws provide a stronger hold on metal than other screws
  • You will get 550Pcs M2 Metric Pan head cross machine screws,Easy to use:All our screws and nuts and washer are packed in a sturdy easy-use plastic storage box to install and use,transparent storage case with labeled compartments, making it easy to find the exact screw you need for your project, the quantity is enough for you to use at home or work
  • Wide Application: Stainless steel machine screws perfect for use in various industries, including automotive, construction, electronics, and more. These screws are suitable for tasks such as fastening metal parts, securing brackets, mounting equipment, and repairing appliances.
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#8 Top Pick
1080PCS Metric Screw Assortment Kit, M2 M3 M4 Bolts + Nuts + Flat Washers + Wrenches Set, 304 Stainless Steel Hex Socket Head Cap Machine Screws, Assorted Nut and Bolt Set with Case

1080PCS Metric Screw Assortment Kit, M2 M3 M4 Bolts + Nuts + Flat Washers + Wrenches Set, 304 Stainless Steel Hex Socket Head Cap Machine Screws, Assorted Nut and Bolt Set with Case

Brand: Auriff
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  • ✅【Package includes】Including M2 M3 M4 size bolts, nuts, washers, hex wrenches, a total of 1080 pieces, conforming to the standard metric system, meeting most of your daily needs.
  • ✅【Size and Quantity】Bolt sizes (20 each): M2x4/6/8/12/16/20mm, M3x4/8/12/16/20/30mm, M4x6/10/14/18/20/30mm. Nut sizes (120 pieces each): M2, M3, M4. Washer sizes (120 pieces each): M2, M3, M4. Hexagonal wrench sizes (1 piece each): M2, M3, M4.
  • ✅【High Quality Material】Made of high quality 304 stainless steel, it has good rust resistance, oxidation resistance, heat resistance, and low temperature strength. It has good strength and toughness, can withstand relatively strong stress and impact, and can be used for a long time.
  • ✅【With Storage Box】Put in a transparent plastic box with partitions in order of size, and there is a size chart on the surface of the lid, you can quickly and easily find the size you need.
  • ✅【Wide Application】Suitable for furniture repair, mechanical maintenance, and screw replacement of certain instruments and equipment. Suitable for household appliances, cars, bicycles, locks, lighting maintenance, etc.
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#9 Top Pick
Zmbroll M4 Flat Head Machine Screws 150Pcs Metric Fastener 304 Stainless Steel Countersunk Cross Machine Screw Fasteners Bolts Assortment Kit M4 x 6/8/10/12/16/18/20/25/30/35/40mm

Zmbroll M4 Flat Head Machine Screws 150Pcs Metric Fastener 304 Stainless Steel Countersunk Cross Machine Screw Fasteners Bolts Assortment Kit M4 x 6/8/10/12/16/18/20/25/30/35/40mm

Brand: Zmbroll
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  • Our m4 machine screws set include: 11 Sizes M4 most commonly used size flat head screws,the length are 6mm 8mm 10mm 12mm,each size 20Pcs, 16mm 18mm,20mm,25mm,30mm,35mm,40mm,each size screws 10Pcs,Available in various lengths,meet your specific application requirements
  • Material:Our M4 flat head screw made from high-quality stainless steel, typically Grade 304 or 316, ensuring excellent corrosion resistance, durability, and suitability for use in harsh environments.M4 screws can serve you for a long time
  • Thread Type :Machine screws; thread pitch:0.7mm,Drive Type :Phillips;Head Type: Flat Countersunk Head; Threading:Right Hand;Measurement system:Metric,fully threaded screws provide a stronger hold on metal than other screws
  • You will get 150Pcs M4 Flat head countersunk machine screws,The countersunk head is designed to sit completely flush with or below the material surface, ensuring a smooth and unobtrusive finish. Easy to use:All our screws are packed in a sturdy easy-use plastic storage box to install and use,the quantity is enough for you to use at home or work
  • Wide applications:Ideal for applications requiring a low-profile, corrosion-resistant fastener, such as in electronics, machinery, automotive components, and other precision engineering projects etc.
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#10 Top Pick
Zmbroll 250 Pcs M4 Flat Head Machine Screws Black Phillips Screws Bolts Nuts Assortment Kit M4 x 6mm/10mm/12mm/16mm/18mm/20mm

Zmbroll 250 Pcs M4 Flat Head Machine Screws Black Phillips Screws Bolts Nuts Assortment Kit M4 x 6mm/10mm/12mm/16mm/18mm/20mm

Brand: Zmbroll
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  • These M4 black screws material:Made of high quality carbon steel,black screws,with high hardness,anti-corrosion and good stability
  • Thread Type :Machine screws; Pitch: 0.7mm;Drive Type :Phillips;Head Type: Flat Countersunk Head; Threading:Right Hand;Measurement system:Metric
  • Package include 6 Sizes M4 machine screws and 100 pcs black screw nuts,black screwssizes:M2.5 x 3mm/4mm/5mm/6mm/8mm/10mm/12mm/14mm
  • You will get 250 Pcs M4 Flat head cross machine screws and nuts in a handy box for convenient storage,the quantity is enough for you to use at home or work
  • Wide applications: Suitable for household, office equipment industry, the electronics industry, the communications industry, machinery, etc.
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