Skip to main content
Home / Screws / 304 Stainless Steel Screw M3 Round Head Bolt, Cross Pan Head Screw M3*4 to M3*22, National Standard Fastener

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Screws
Origin -
Material 304 Stainless Steel
Head Type Round Pan Head
Drive Type Cross (Phillips)
Thread Size M3
Length Range 4mm to 22mm
Standard National Standard (GB)
Surface Finish Polished
Thread Pitch 0.5mm (Coarse)
Application Electronics, Machinery, DIY Projects
Corrosion Resistance High (Rust Resistant)

6 reviews

A

Anonymous

Mar 31, 2026

Rating: 5/5

Exactly as described

National standard sizing fits my imported equipment perfectly. Very happy with the purchase and will buy again when I run out.

A

Anonymous

Mar 29, 2026

Rating: 4/5

Good value, fast shipping

Great set of screws for the price. The heads are well-formed and the cross drive works smoothly with my screwdriver. One length was slightly off, but overall satisfied.

A

Anonymous

Mar 18, 2026

Rating: 5/5

High quality 304 steel

I tested these with a magnet and they show very low attraction, confirming genuine 304 stainless steel. No rust after a month in a humid environment.

A

Anonymous

Mar 17, 2026

Rating: 5/5

Essential for hobbyists

Having a variety of lengths from 4mm to 22mm in one pack is incredibly convenient. The threads are clean and consistent across all sizes.

A

Anonymous

Mar 11, 2026

Rating: 4/5

Solid fasteners

Used these to assemble a custom keyboard case. They held up well under torque and didn't snap. The pan head sits flush nicely.

A

Anonymous

Mar 05, 2026

Rating: 5/5

Perfect for my electronics project

These M3 screws are exactly what I needed. The stainless steel quality is excellent, and they fit perfectly without stripping. Highly recommended for precision work.

5 FAQ

Q: Can these be used in outdoor applications?

A: Yes, 304 stainless steel offers good corrosion resistance for most outdoor environments, though 316 grade is recommended for marine or highly saline conditions.

Q: Is the head diameter standard for M3 pan heads?

A: Yes, the head diameter follows the national standard for M3 pan heads, ensuring compatibility with standard washers and countersinks.

Q: What is the hardness rating of these screws?

A: These 304 stainless steel screws typically have a hardness of approximately 70-80 HRB, suitable for general mechanical assembly.

Q: Are these screws compatible with metric M3 nuts?

A: Yes, these are standard metric M3 screws with a 0.5mm pitch, fully compatible with any standard M3 nut.

Q: Do you sell these in bulk quantities over 1000 pieces?

A: Yes, we offer bulk discounts for orders over 1000 pieces. Please contact our sales team via the 'Contact Seller' button for a quote.

Explore your interests

View More
All Categories
Best Seller (30)
New List (30)
Foldable Steel Tire Stone Removal Hook - Multi-Tool for Tire Repair, Stone Picking, and Emergency Window Breaking with Storage Bag

Foldable Steel Tire Stone Removal Hook - Multi-Tool for Tire Repair, Stone Picking, and Emergency Window Breaking with Storage Bag

$11.70

Integrated Catalytic Combustion Unit RCO Furnace - Exhaust Gas Treatment System with Activated Carbon Adsorption-Desorption and Catalytic Combustion

Integrated Catalytic Combustion Unit RCO Furnace - Exhaust Gas Treatment System with Activated Carbon Adsorption-Desorption and Catalytic Combustion

$231,249.00

Universal Waterproof and Sunproof Cover for E-Bike Charger with Outdoor Storage Box

Universal Waterproof and Sunproof Cover for E-Bike Charger with Outdoor Storage Box

$11.85

Baohong Paper Brick Watercolor Paper Pad, Medium/Coarse Texture, Square/Round Shapes for Painting, Sketching, and Cotton Pulp Practice

Baohong Paper Brick Watercolor Paper Pad, Medium/Coarse Texture, Square/Round Shapes for Painting, Sketching, and Cotton Pulp Practice

$28.00

Commercial Food Warmer Cabinet for Pies, Youtiao, Burgers, Egg Tarts, and Fried Chicken, Heating and Temperature-Controlled Display Case

Commercial Food Warmer Cabinet for Pies, Youtiao, Burgers, Egg Tarts, and Fried Chicken, Heating and Temperature-Controlled Display Case

$977.00

Masking Tape Spray Paint Shielding Paper for Art Students and Sketching - Non-bleeding, Residue-free, Hand-tearable, Shoe-safe

Masking Tape Spray Paint Shielding Paper for Art Students and Sketching - Non-bleeding, Residue-free, Hand-tearable, Shoe-safe

$1.00

Electric Scooter and Motorcycle Hook - Multi-Functional Storage Hanger for Delivery Bikes and Cargo Boxes

Electric Scooter and Motorcycle Hook - Multi-Functional Storage Hanger for Delivery Bikes and Cargo Boxes

$2.50

Huirui 420AB Fast-Drying Glue for Silicone - Bonds ABS, Stainless Steel, TPE, Rubber; High-Strength Instant Adhesive for Difficult Materials

Huirui 420AB Fast-Drying Glue for Silicone - Bonds ABS, Stainless Steel, TPE, Rubber; High-Strength Instant Adhesive for Difficult Materials

$36.00

Color Proofing Instrument Ink Mixing Tool Sample Making Machine

Color Proofing Instrument Ink Mixing Tool Sample Making Machine

$1,860.00

Variable Frequency Drive 0.75kW 2.6A Three-Phase 380V

Variable Frequency Drive 0.75kW 2.6A Three-Phase 380V

$1,430.00

2026 Spring PEP New Edition Primary English Grade 3 Volume 2 Four-Line Three-Grid Word Cards for Teachers, Open Class Competition Creative Blackboard Design, Teaching Contest Blackboard Strips and Teaching Aids

2026 Spring PEP New Edition Primary English Grade 3 Volume 2 Four-Line Three-Grid Word Cards for Teachers, Open Class Competition Creative Blackboard Design, Teaching Contest Blackboard Strips and Teaching Aids

$11.30

Cold Brew Yogurt Fermentation Equipment - Manual Old-Style Yogurt Processing and Filling Line

Cold Brew Yogurt Fermentation Equipment - Manual Old-Style Yogurt Processing and Filling Line

$113,050.00

Electric Spray Painting Pen Set for Babies and Toddlers, Non-Toxic Washable Watercolor Markers, Drawing Tool Kit Toy

Electric Spray Painting Pen Set for Babies and Toddlers, Non-Toxic Washable Watercolor Markers, Drawing Tool Kit Toy

$49.50

[Buy 2 Get 10% Off] Painted Double-Layer Wool Felt Mat for Calligraphy and Painting

[Buy 2 Get 10% Off] Painted Double-Layer Wool Felt Mat for Calligraphy and Painting

$7.48

Compact Home Range Hood, Portable USB Desktop Smoke Extractor for Living Room Hot Pot and BBQ Odor Removal

Compact Home Range Hood, Portable USB Desktop Smoke Extractor for Living Room Hot Pot and BBQ Odor Removal

$41.00

Office and Home Computer Cable Management Sleeve - Desktop Data Cord Organizer and PC Wire Collector

Office and Home Computer Cable Management Sleeve - Desktop Data Cord Organizer and PC Wire Collector

$6.50

Linear Bearing

Linear Bearing

$75.47

Thickened Aluminum Alloy Stainless Steel Floor Wire Raceway - Surface-Mounted Cable Cover Protector, Anti-Crush, Self-Adhesive Invisible Design

Thickened Aluminum Alloy Stainless Steel Floor Wire Raceway - Surface-Mounted Cable Cover Protector, Anti-Crush, Self-Adhesive Invisible Design

$2.13

Kids Foam Stamp Brushes - Mushroom-Tipped Painting Set for Kindergarten Art and Graffiti Projects

Kids Foam Stamp Brushes - Mushroom-Tipped Painting Set for Kindergarten Art and Graffiti Projects

$2.38

Heisidike HZL-32 Portable Stone Removal Hook for Car Tire Tread Cleaning

Heisidike HZL-32 Portable Stone Removal Hook for Car Tire Tread Cleaning

$9.28

Bixilage Cheese Processing Equipment – Curd Fermentation Machine for Stretchy Hand-Pulled Cheese Production Line

Bixilage Cheese Processing Equipment – Curd Fermentation Machine for Stretchy Hand-Pulled Cheese Production Line

$67,900.00

Essential Oil Soap Stamping Machine DIY Stamp Maker Semi-Auto Pneumatic Stampler Small Handmade Soap Equipment

Essential Oil Soap Stamping Machine DIY Stamp Maker Semi-Auto Pneumatic Stampler Small Handmade Soap Equipment

$2,173.00

Inverted Barrel Water Stand - Simple U-Shaped Thickened Holder for Purified Water Buckets with Dispenser Outlet

Inverted Barrel Water Stand - Simple U-Shaped Thickened Holder for Purified Water Buckets with Dispenser Outlet

$21.00

Qingling Pickup 2.8T Diesel Isuzu 4JB1-T1 Engine Turbocharger Pump Assembly

Qingling Pickup 2.8T Diesel Isuzu 4JB1-T1 Engine Turbocharger Pump Assembly

$1,502.00

Juli JL-499 Heat Resistant up to 150°C Instant Adhesive High Performance Low Whitening Transparent High-Temperature Fast-Drying Glue

Juli JL-499 Heat Resistant up to 150°C Instant Adhesive High Performance Low Whitening Transparent High-Temperature Fast-Drying Glue

$90.30

Stainless Steel Buffet Warmer with Hydraulic Lift - Commercial Electric Heating Chafing Dish

Stainless Steel Buffet Warmer with Hydraulic Lift - Commercial Electric Heating Chafing Dish

$882.00

Zhaobei New Felt Calligraphy Mat Anti-Pilling Painting Felt Chinese Painting Cloth Brush Character Calligraphy Felt Pad

Zhaobei New Felt Calligraphy Mat Anti-Pilling Painting Felt Chinese Painting Cloth Brush Character Calligraphy Felt Pad

$29.70

Fruit Picking Bucket with Shoulder Strap, Manual Fertilizer Spreader, Durable Rubber Harvest Container for Seeds and Chemicals

Fruit Picking Bucket with Shoulder Strap, Manual Fertilizer Spreader, Durable Rubber Harvest Container for Seeds and Chemicals

$26.57

Baohong Artist Grade Watercolor Pad - 100% Cotton Pulp, 300gsm, Glued on Four Sides, Available in 16K, 8K, 4K with Cold Press or Hot Press Texture

Baohong Artist Grade Watercolor Pad - 100% Cotton Pulp, 300gsm, Glued on Four Sides, Available in 16K, 8K, 4K with Cold Press or Hot Press Texture

$42.00

Commercial Brush Peeling Machine for Sweet Potatoes, Ginger, Taro, Mustard Greens, and Kohlrabi

Commercial Brush Peeling Machine for Sweet Potatoes, Ginger, Taro, Mustard Greens, and Kohlrabi

$15.90