Skip to main content
Home / Connectors and Fasteners / Extended M3 M4 M5 M6 M8 M10 M12 304 Stainless Steel Socket Head Cap Screws Full Thread Cylinder Head Bolts

Attributes

Brand -
Category Industrial Small Parts / Connectors and Fasteners
Origin -
Material Grade 304 Stainless Steel
Thread Diameter M3, M4, M5, M6, M8, M10, M12
Head Type Cylindrical Hex Socket Cap
Drive Style Internal Hex Allen
Thread Coverage Fully Threaded
Surface Finish Plain Polished
Strength Class A2-70
Standard Compliance DIN 912 / ISO 4762
Package Type Bulk Wholesale Box
Application Machinery, Automotive, Construction

5 reviews

A

Anonymous

Apr 05, 2026

Rating: 5/5

Accurate sizing

Measured several pieces from the assortment and they all met standard metric specifications. Will definitely order again for future projects.

A

Anonymous

Mar 28, 2026

Rating: 4/5

Good value but heavy box

The screws themselves are excellent quality. The only reason for 4 stars is the packaging was quite heavy to lift upon delivery. Product is great though.

A

Anonymous

Mar 13, 2026

Rating: 5/5

Corrosion resistant

Using these in a humid environment and there is no sign of rust after three months. Very satisfied with the 304 stainless quality.

A

Anonymous

Feb 08, 2026

Rating: 4/5

Solid hardware

Great assortment for the price. I wish the box had dividers to separate the sizes better, but the screws themselves are top notch.

A

Anonymous

Feb 02, 2026

Rating: 5/5

Perfect for industrial use

Ordered the bulk pack for our workshop. The threading is clean and the stainless steel quality is genuine. No issues with stripping during installation.

5 FAQ

Q: Does this kit include the Allen keys needed for installation?

A: No, this package contains only the hex socket cap screws. Tools are sold separately.

Q: Can I return unopened boxes if I ordered too many?

A: Yes, unopened bulk packages can be returned within 30 days of delivery subject to our return policy.

Q: Is there a certificate of material compliance available?

A: Yes, we can provide a mill test certificate upon request for bulk orders. Please contact our sales department.

Q: What is the length range included in this bulk box?

A: The assortment includes various extended lengths ranging from 20mm up to 100mm depending on the diameter selected.

Q: Are these screws suitable for outdoor marine applications?

A: While 304 stainless offers good corrosion resistance, 316 stainless is recommended for direct saltwater exposure. These are suitable for general outdoor use.

Explore your interests

View More
All Categories
Best Seller (30)
New List (30)
CANDLE.LAB | Silicone Border Mat for DIY Scented Candles and Soap Making Tray Mold

CANDLE.LAB | Silicone Border Mat for DIY Scented Candles and Soap Making Tray Mold

$32.00

Shiji Runde Coal Shed Mine Dust Removal Explosion-Proof Anti-Freezing Fog Cannon Port Dust Suppression 80m Ultra-Fine Industrial Fog Machine

Shiji Runde Coal Shed Mine Dust Removal Explosion-Proof Anti-Freezing Fog Cannon Port Dust Suppression 80m Ultra-Fine Industrial Fog Machine

$4,180.00

Mobile Retractable Spray Booth for Furniture - Foldable Track-Mounted Painting Room

Mobile Retractable Spray Booth for Furniture - Foldable Track-Mounted Painting Room

$6,240.00

Long Handle Bristle Paint Brush - Hog Hair Brush for Oil Painting, Acrylic Wall Art, and Children's Drawing

Long Handle Bristle Paint Brush - Hog Hair Brush for Oil Painting, Acrylic Wall Art, and Children's Drawing

$1.80

Electrostatic Powder Coating Equipment and Electronic Powder Dispenser Supply

Electrostatic Powder Coating Equipment and Electronic Powder Dispenser Supply

$17,250.00

DIY Toast-Shaped Silicone Mold for Handmade Soap - Square Soap Making Mold

DIY Toast-Shaped Silicone Mold for Handmade Soap - Square Soap Making Mold

$105.00

Kindergarten Sponge Stamp Set – Mushroom-Head Circular Printing Tools for Kids' DIY Art and Painting Kits

Kindergarten Sponge Stamp Set – Mushroom-Head Circular Printing Tools for Kids' DIY Art and Painting Kits

$3.50

Heavy-Duty Lifting Chain Set – Manganese Steel Chains with Hooks, Rings, and Hoist Accessories

Heavy-Duty Lifting Chain Set – Manganese Steel Chains with Hooks, Rings, and Hoist Accessories

$198.00

Car Tire Stone Removal Tool, Multi-Function Groove Hook for Portable Tire Picking and Cleaning

Car Tire Stone Removal Tool, Multi-Function Groove Hook for Portable Tire Picking and Cleaning

$11.50

m Dogs Strap Auto Retractable Dual Dog Leash With

m Dogs Strap Auto Retractable Dual Dog Leash With

$199.92

Traditional Wooden Sheepskin Rattle Toy – Safe for Teething Newborns, Handcrafted Baby Bell Shaker

Traditional Wooden Sheepskin Rattle Toy – Safe for Teething Newborns, Handcrafted Baby Bell Shaker

$17.80

Soilless Cultivation Equipment Plant Factory Display Rooftop Hydroponic Pipe System for Leafy Vegetables and Fruits, Type A Planting Rack

Soilless Cultivation Equipment Plant Factory Display Rooftop Hydroponic Pipe System for Leafy Vegetables and Fruits, Type A Planting Rack

$2,620.16

Premium Ceramic Tea Canister and Gift Box Set - Empty Packaging for Black Tea, Pu'er, White Tea, and Biluochun

Premium Ceramic Tea Canister and Gift Box Set - Empty Packaging for Black Tea, Pu'er, White Tea, and Biluochun

$121.00

Posture-Correcting Hole-Grip Pencils for Grade 1 - Triangular Barrel, Break-Resistant, Non-Toxic HB for Daily Writing and 2B for Exams

Posture-Correcting Hole-Grip Pencils for Grade 1 - Triangular Barrel, Break-Resistant, Non-Toxic HB for Daily Writing and 2B for Exams

$3.02

Genuine OEM AC Blower Motor Heater Fan for Buick Excelle GT, Cavalier, and Monza

Genuine OEM AC Blower Motor Heater Fan for Buick Excelle GT, Cavalier, and Monza

$255.00

TA1 TA2 Titanium Capillary Tubes - Small Diameter Titanium Pipes - GR5 Titanium Alloy Tubes

TA1 TA2 Titanium Capillary Tubes - Small Diameter Titanium Pipes - GR5 Titanium Alloy Tubes

$240.00

Industrial Spray Painting Wipe Cloth Auto Bake Finish Film Application Degreasing Cloth Non-Woven Absorbent Paper Lint-Free Paper Electrostatic Dust Removal Paper

Industrial Spray Painting Wipe Cloth Auto Bake Finish Film Application Degreasing Cloth Non-Woven Absorbent Paper Lint-Free Paper Electrostatic Dust Removal Paper

$75.66

US Standard Buttress Thread Inserts 22ER 16ER 11NR 16 10 12 8ABUT Internal 7 External 45 Degree

US Standard Buttress Thread Inserts 22ER 16ER 11NR 16 10 12 8ABUT Internal 7 External 45 Degree

$43.20

Coating Workshop Cleaning Rags GAE Industry White Scrap Cloth Nylon Machine Cloth Blocks Industrial Glue Removal Furniture Cleaning

Coating Workshop Cleaning Rags GAE Industry White Scrap Cloth Nylon Machine Cloth Blocks Industrial Glue Removal Furniture Cleaning

$96.31

Natural 8A Yellow Tiger Eye Loose Beads - Round Cat's Eye Bracelet for DIY Jewelry Making

Natural 8A Yellow Tiger Eye Loose Beads - Round Cat's Eye Bracelet for DIY Jewelry Making

$17.28

Paper Blending Stumps Art Set for Highlighting, Sketching, and Smudging - Professional Drawing Tools for Artists and Beginners with Rice Paper Details and Oil Pastels

Paper Blending Stumps Art Set for Highlighting, Sketching, and Smudging - Professional Drawing Tools for Artists and Beginners with Rice Paper Details and Oil Pastels

$6.80

Rubber Speed Bump 1000x350x40mm Herringbone Pattern

Rubber Speed Bump 1000x350x40mm Herringbone Pattern

$96.89

Xian Kan Yun Shu [Cloud Lark] Elegant Brush Washer, Hand-Painted Orchid and Sparrow Design under Glaze, Ceramic Water Pot

Xian Kan Yun Shu [Cloud Lark] Elegant Brush Washer, Hand-Painted Orchid and Sparrow Design under Glaze, Ceramic Water Pot

$21.20

Cable Organizer Hook-and-Loop Straps for Data/Charging Cables, Laptop Power, Mouse, Headphones, and Under-Desk Network Wiring

Cable Organizer Hook-and-Loop Straps for Data/Charging Cables, Laptop Power, Mouse, Headphones, and Under-Desk Network Wiring

$7.48

Power Strip Organizer Box, Desktop Socket Concealment Case for Charging Cables and Power Cords, Hidden Storage Shelf

Power Strip Organizer Box, Desktop Socket Concealment Case for Charging Cables and Power Cords, Hidden Storage Shelf

$21.93

Automatic Dairy Beverage Filling Machine - Fully Automatic Equipment for Milk, Soy Milk, and Drink Bottling

Automatic Dairy Beverage Filling Machine - Fully Automatic Equipment for Milk, Soy Milk, and Drink Bottling

$1,316.00

Compact Invisible Retainer Case - Leak-Proof Sealed Storage Box for Children's Orthodontic Aligners

Compact Invisible Retainer Case - Leak-Proof Sealed Storage Box for Children's Orthodontic Aligners

$12.50

07521 Scouring Pad Roll for Woodworking, Furniture, Paint Sanding, Metal Deburring, and Brushed Finish - Purple 600 Grit

07521 Scouring Pad Roll for Woodworking, Furniture, Paint Sanding, Metal Deburring, and Brushed Finish - Purple 600 Grit

$81.00

Shiya Insulated Display Cabinet, Constant Temperature Warmer for Commercial Use, Crispy Pork Belly, Roast Duck, Roast Chicken, and Cooked Food

Shiya Insulated Display Cabinet, Constant Temperature Warmer for Commercial Use, Crispy Pork Belly, Roast Duck, Roast Chicken, and Cooked Food

$388.00

Wooden Soap Trimmer with Drawer, Soap Planer and Edge Shaper, Free Shipping

Wooden Soap Trimmer with Drawer, Soap Planer and Edge Shaper, Free Shipping

$32.00