Skip to main content
Home / Connectors and Fasteners / 304 Stainless Steel Countersunk Hex Bolt, Flat Cup Head Hex Socket Screw (M2/M3/M4/M5/M6/M8/M10)

Attributes

Brand -
Category Industrial Small Parts / Connectors and Fasteners
Origin -
Material 304 Stainless Steel
Head Style Countersunk Flat Head
Drive Type Hex Socket (Allen)
Thread Size Range M2, M3, M4, M5, M6, M8, M10
Thread Standard Metric Coarse Pitch
Surface Finish Plain Polished
Industrial Standard DIN 7991 / ISO 10642
Package Quantity 200 Pieces Assortment
Net Weight 0.55 kg
Storage Plastic Organizer Case Included

5 reviews

A

Anonymous

Apr 10, 2026

Rating: 5/5

Perfect Fit

Used for my 3D printer frame construction. The hex sockets are deep and easy to drive.

A

Anonymous

Mar 19, 2026

Rating: 5/5

Fast Shipping

Arrived earlier than expected. The case keeps everything organized nicely in my toolbox.

A

Anonymous

Feb 24, 2026

Rating: 4/5

Good Variety

Most sizes worked perfectly for my assembly needs. Would have liked more M5 screws included.

A

Anonymous

Feb 11, 2026

Rating: 5/5

Excellent Quality

These bolts are very strong and the finish is smooth. Perfect for my machinery repair project.

A

Anonymous

Jan 25, 2026

Rating: 5/5

Durable

No signs of rust after months of use in a humid workshop environment. Highly recommend.

5 FAQ

Q: What lengths are included in the kit?

A: Assorted lengths vary by diameter, ranging from 4mm up to 50mm depending on the specific screw size.

Q: Is an Allen key included with this set?

A: No, this kit contains bolts only. Hex keys are sold separately in our tools section.

Q: Are these bolts magnetic?

A: 304 stainless steel is generally non-magnetic, though slight magnetism may occur due to cold working during threading.

Q: Do you offer bulk discounts for larger orders?

A: Yes, please contact our sales team directly for pricing on quantities exceeding 50 kits.

Q: Can these be used for outdoor applications?

A: Yes, 304 stainless steel offers good corrosion resistance suitable for most outdoor environments.

Explore your interests

View More
All Categories
Best Seller (30)
New List (30)
2MM 3MM 4MM Natural Color-Gradient Amethyst Soccer-Cut Faceted Loose Beads - Semi-Finished Amethyst Cuts

2MM 3MM 4MM Natural Color-Gradient Amethyst Soccer-Cut Faceted Loose Beads - Semi-Finished Amethyst Cuts

$17.00

Educational Toys for Babies 0-3 Years - Newborn Rattle and Musical Stick for Boys and Girls (0-12 Months)

Educational Toys for Babies 0-3 Years - Newborn Rattle and Musical Stick for Boys and Girls (0-12 Months)

$12.80

Variable Frequency Drive Cabinet for Fans with Energy-Saving VFD Control

Variable Frequency Drive Cabinet for Fans with Energy-Saving VFD Control

$11,334.00

Pure Water Bucket Stand with Manual Pump, Inverted Dispenser Rack for Large Bottles, Simple Water Dispenser

Pure Water Bucket Stand with Manual Pump, Inverted Dispenser Rack for Large Bottles, Simple Water Dispenser

$4.65

Spray Tower Exhaust Gas Treatment System - Industrial Air Purification for Dust, Acid Mist, and Alkali Scrubbing

Spray Tower Exhaust Gas Treatment System - Industrial Air Purification for Dust, Acid Mist, and Alkali Scrubbing

$1,738.00

Acrylic Markers Opaque Overlapping Colors Art Drawing Pens Specialized Ink Cores

Acrylic Markers Opaque Overlapping Colors Art Drawing Pens Specialized Ink Cores

$49.90

Cute Portable Invisible Aligner Case - Storage Box for Orthodontic Retainers, Teeth Correctors, and Dentures

Cute Portable Invisible Aligner Case - Storage Box for Orthodontic Retainers, Teeth Correctors, and Dentures

$5.78

SolidWorks Software Remote Installation Service - Versions 2025/2024/2023/2022/2021/2020/2018

SolidWorks Software Remote Installation Service - Versions 2025/2024/2023/2022/2021/2020/2018

$10.00

Nylon Paint Small Brush Painting Brush Computer Cleaning Dust Brush Sweeping Gray Size Brushes BBQ Flat Brush

Nylon Paint Small Brush Painting Brush Computer Cleaning Dust Brush Sweeping Gray Size Brushes BBQ Flat Brush

$0.90

Compact Home Range Hood - Portable USB Desktop Smoke Extractor for Hot Pot & BBQ

Compact Home Range Hood - Portable USB Desktop Smoke Extractor for Hot Pot & BBQ

$41.00

Large Area Hollow Advertising Sign Spray Paint Stencil Customizable Bendable Lettering Board Wall Slogan Brushing Soft Mold

Large Area Hollow Advertising Sign Spray Paint Stencil Customizable Bendable Lettering Board Wall Slogan Brushing Soft Mold

$5.00

Heavy-Duty Kitchen Sink Storage Rack, Dust-Proof Dish Drainer, Multi-Function Bowl Organizer

Heavy-Duty Kitchen Sink Storage Rack, Dust-Proof Dish Drainer, Multi-Function Bowl Organizer

$85.00

Xinda Outdoor Waterproof Backpack - IPX7 Wet/Dry Separation Rucksack for River Trekking, Mountaineering, Snorkeling, Swimming, and Rafting

Xinda Outdoor Waterproof Backpack - IPX7 Wet/Dry Separation Rucksack for River Trekking, Mountaineering, Snorkeling, Swimming, and Rafting

$109.55

[Damai Patented Microneedle Hair Transplant] Hairline + Eyebrow Planting | 1000 Grafts Hairline + Both Eyebrows

[Damai Patented Microneedle Hair Transplant] Hairline + Eyebrow Planting | 1000 Grafts Hairline + Both Eyebrows

$17,800.00

Pure Wool Calligraphy Felt Mat – Thickened, Wear-Resistant Fabric for Chinese Painting and Brush Writing; Custom Desk Pad

Pure Wool Calligraphy Felt Mat – Thickened, Wear-Resistant Fabric for Chinese Painting and Brush Writing; Custom Desk Pad

$1,440.00

Welding Fume Purifier – Effective Collection and Control of Welding Smoke and Dust

Welding Fume Purifier – Effective Collection and Control of Welding Smoke and Dust

$12.40

FRP Stair Nosing, Yellow Anti-Slip Stair Treads with Granular Surface

FRP Stair Nosing, Yellow Anti-Slip Stair Treads with Granular Surface

$64.00

Stainless Steel Reaction Kettle, Emulsifying Tank, Electric Heating Reactor, Enamel-Glass Silicone Oil Reactor, and Mixing Vessel

Stainless Steel Reaction Kettle, Emulsifying Tank, Electric Heating Reactor, Enamel-Glass Silicone Oil Reactor, and Mixing Vessel

$2,700.00

Wholesale Acrylic Markers in Bags, Student Water-Based Ink Pens, Eco-Friendly Non-Toxic Drawing Pens with Layering Capability

Wholesale Acrylic Markers in Bags, Student Water-Based Ink Pens, Eco-Friendly Non-Toxic Drawing Pens with Layering Capability

$5.80

Oil Pastel Blending Pen and Smudge Tool Set - Soft Tip Sponge Balls and Scrapers for Heavy Color Wax Crayon Blending and Painting

Oil Pastel Blending Pen and Smudge Tool Set - Soft Tip Sponge Balls and Scrapers for Heavy Color Wax Crayon Blending and Painting

$12.50

Lechuang Commercial Electric Heated Display Warmer - Countertop Food Warmer for Cooked Foods, Bread, and Pizza

Lechuang Commercial Electric Heated Display Warmer - Countertop Food Warmer for Cooked Foods, Bread, and Pizza

$1,250.00

Model 2500-480 Independent Rotary Die Second-Hand Special Sale Independent Light Pressure Front Edge with Die Cutting Speed 120-150

Model 2500-480 Independent Rotary Die Second-Hand Special Sale Independent Light Pressure Front Edge with Die Cutting Speed 120-150

$2,000.00

Fishing Alarm Portable Electronic Fishing Bite Alarm Night

Fishing Alarm Portable Electronic Fishing Bite Alarm Night

$60.27

Shengxitao 304 Stainless Steel Expandable Dish Drainer Basket for Kitchen Sink, Dish Rack Organizer

Shengxitao 304 Stainless Steel Expandable Dish Drainer Basket for Kitchen Sink, Dish Rack Organizer

$58.60

Industrial Scouring Pad with Abrasive Grit - Sandpaper Cloth for Rust Removal, Polishing, and Dishwashing

Industrial Scouring Pad with Abrasive Grit - Sandpaper Cloth for Rust Removal, Polishing, and Dishwashing

$0.34

Traveling-Type Air Flotation Skimmer and Foam Remover, Reciprocating Fully Automatic Oil Skimming and Floating Debris Removal Machine

Traveling-Type Air Flotation Skimmer and Foam Remover, Reciprocating Fully Automatic Oil Skimming and Floating Debris Removal Machine

$5,159.00

Language of Drums Motion Path Set Drum Creativity Essence Rhythm Drum Kit Teaching Material Jazz Drum

Language of Drums Motion Path Set Drum Creativity Essence Rhythm Drum Kit Teaching Material Jazz Drum

$59.17

1.9m Wide-Format Sublimation Printer for Pillows, Garments, and Fabric Digital Printing

1.9m Wide-Format Sublimation Printer for Pillows, Garments, and Fabric Digital Printing

$600.00

Automatic Retractable Air Hose Reel - Pneumatic Shrinking Hose Drum Combo for Auto Repair (Air, Electric, Water) - National Standard

Automatic Retractable Air Hose Reel - Pneumatic Shrinking Hose Drum Combo for Auto Repair (Air, Electric, Water) - National Standard

$228.00

Marie's Paper Blending Stumps Thickened Xuan Paper Blending Stumps Marie's Student Sketch Set Blending Stumps Rubbing Cotton Painting Special Paper Blending Stumps Smudging Pens Art Supplies Xuan Paper Sketch Fixative

Marie's Paper Blending Stumps Thickened Xuan Paper Blending Stumps Marie's Student Sketch Set Blending Stumps Rubbing Cotton Painting Special Paper Blending Stumps Smudging Pens Art Supplies Xuan Paper Sketch Fixative

$5.09