Skip to main content
Home / Connectors and Fasteners / Galvanized Carriage Bolt Bridge Shelf Bolt 4C5M6 Large Flat Head Semi-Round Head Square Neck Screw 8M10M12mm

Attributes

Brand -
Category Industrial Small Parts / Connectors and Fasteners
Origin -
Material Carbon Steel
Surface Treatment Color Zinc Plated
Thread Size M4, M5, M6, M8
Head Style Hexagon Half/Full Head
Strength Grade Class 8.8
Sales Unit By Weight (kg)
Application Automotive, Sheet Metal, Machinery
Installation Tool Rivet Nut Tool Required (Not Included)
Standard ISO Metric Thread
Package Content Rivet Nuts Only

5 reviews

A

Anonymous

Mar 18, 2026

Rating: 5/5

Good quality plating

The zinc coating looks durable. No rust after a few months outside.

A

Anonymous

Mar 11, 2026

Rating: 5/5

Strong hold

Very secure once installed. Great for thin sheet metal projects.

A

Anonymous

Mar 07, 2026

Rating: 5/5

Exactly as described

Fit my M6 bolts perfectly. Fast shipping and well packaged.

A

Anonymous

Feb 02, 2026

Rating: 4/5

Good value bulk pack

Buying by weight is economical. Some threads were slightly tight but workable.

A

Anonymous

Feb 01, 2026

Rating: 5/5

Perfect for auto repair

Used these on my car panel. The hex shape prevents spinning which is great.

5 FAQ

Q: What is the maximum grip range?

A: It depends on the specific size selected. Please refer to the size chart in the product images.

Q: Is this made of 304 stainless steel?

A: This specific SKU is Carbon Steel with Color Zinc Plating. We have stainless options available in another listing.

Q: How many pieces are in 1 kg?

A: The count varies by size. For M6, there are approximately 200-250 pieces per kg.

Q: Can I use these on aluminum sheets?

A: Yes, these are suitable for aluminum and other sheet metals within the grip range.

Q: Does this package include the installation tool?

A: No, the rivet nut tool is sold separately. This listing is for the nuts only.

Explore your interests

View More
All Categories
Best Seller (30)
New List (30)
Low-Temperature Plasma Oil Fume Purifier Electrostatic Ion Module Equipment Rubber Plastic Smoke Treatment Device

Low-Temperature Plasma Oil Fume Purifier Electrostatic Ion Module Equipment Rubber Plastic Smoke Treatment Device

$1,600.00

Chunfei Grocery Store - Yun'an GR02 Gravel Bike, Thru-Axle, Disc Brake, Lightweight Touring with Multiple Rack Mounts

Chunfei Grocery Store - Yun'an GR02 Gravel Bike, Thru-Axle, Disc Brake, Lightweight Touring with Multiple Rack Mounts

$7,977.00

Cashmir Blending Knife Replacement Head Set, Sketch Neony Blending Heads, Sponge Blending Heads, Breathing Cotton for Art Students

Cashmir Blending Knife Replacement Head Set, Sketch Neony Blending Heads, Sponge Blending Heads, Breathing Cotton for Art Students

$4.34

Natural Amethyst, Rose Quartz, Clear Quartz, and Lemon Quartz Double-Pointed Tumbled Beads for DIY Bracelets, Necklaces, and Earrings

Natural Amethyst, Rose Quartz, Clear Quartz, and Lemon Quartz Double-Pointed Tumbled Beads for DIY Bracelets, Necklaces, and Earrings

$1.70

Accordion-Style Watercolor Sketchbook, 32k Foldable Blank Paper, 300g Cotton Pulp Fine Texture for Painting, A4 Stamp Collection Travel Journal, DIY Sticker Art Notebook

Accordion-Style Watercolor Sketchbook, 32k Foldable Blank Paper, 300g Cotton Pulp Fine Texture for Painting, A4 Stamp Collection Travel Journal, DIY Sticker Art Notebook

$9.70

Electric Watercolor Spray Pen Children Hand-painted Color Pa

Electric Watercolor Spray Pen Children Hand-painted Color Pa

$52.55

VFD 2.2kW 9.8A Single Phase 220V

VFD 2.2kW 9.8A Single Phase 220V

$1,919.00

Printmaking Press Machine - Large Format Etching and Woodblock Printer for School Art Classes and Clubs

Printmaking Press Machine - Large Format Etching and Woodblock Printer for School Art Classes and Clubs

$583.11

Bread Rattle Superman Maraca Baby 0-1 Year Soothing Tool Newborn Safe to Chew Grip Training Hand Rattle

Bread Rattle Superman Maraca Baby 0-1 Year Soothing Tool Newborn Safe to Chew Grip Training Hand Rattle

$8.80

Direct Supply 0.75kw Laboratory Frame Mixer - Suitable for Mixing Fluid Materials, Adhesives, and Lithium Battery Applications

Direct Supply 0.75kw Laboratory Frame Mixer - Suitable for Mixing Fluid Materials, Adhesives, and Lithium Battery Applications

$2,395.00

Yonghe Hair Transplant Follicle Detection and Scalp Health Assessment - Consultation and Photodynamic Therapy Experience

Yonghe Hair Transplant Follicle Detection and Scalp Health Assessment - Consultation and Photodynamic Therapy Experience

$0.10

Continental CSC5 Tires – Sizes 215/225/235/245/255 x 40/45/50/55 R17/18/19/20/21

Continental CSC5 Tires – Sizes 215/225/235/245/255 x 40/45/50/55 R17/18/19/20/21

$725.00

Commercial High-Speed Fruit and Vegetable Crusher and Puree Maker, Continuous Processing Equipment for Galangal, Fresh Ginger, Bell Peppers, and Tomatoes

Commercial High-Speed Fruit and Vegetable Crusher and Puree Maker, Continuous Processing Equipment for Galangal, Fresh Ginger, Bell Peppers, and Tomatoes

$17,980.00

DIY Scented Candle Molds - 24 Popular Korean Acrylic PC Styles: Cylinder, Pointed Top, Flat Top, Square, Shell

DIY Scented Candle Molds - 24 Popular Korean Acrylic PC Styles: Cylinder, Pointed Top, Flat Top, Square, Shell

$10.80

Custom Solid Wood Plaque and Couplet Carving - Wooden Shop Signage, Arched Door Headers, and Grand Opening Engravings

Custom Solid Wood Plaque and Couplet Carving - Wooden Shop Signage, Arched Door Headers, and Grand Opening Engravings

$174.00

New Direct-Sale 326 Instant Glue - High-Strength Structural Adhesive for Metal, Heat Resistant, Anti-Aging, Ideal for Car Rearview Mirrors

New Direct-Sale 326 Instant Glue - High-Strength Structural Adhesive for Metal, Heat Resistant, Anti-Aging, Ideal for Car Rearview Mirrors

$26.54

Zhong Shaojing Lingfei Jing Small Regular Script Water Writing Cloth for Calligraphy Practice - Reusable Quick-Dry Mat

Zhong Shaojing Lingfei Jing Small Regular Script Water Writing Cloth for Calligraphy Practice - Reusable Quick-Dry Mat

$22.53

New 968 Fast-Drying Super Glue - Strong Bond for Metal, Magnets, Rubber, and Aluminum Alloy

New 968 Fast-Drying Super Glue - Strong Bond for Metal, Magnets, Rubber, and Aluminum Alloy

$18.20

German Imported Stone Removal Hook Car Tire Stone Cleaning Tool Vehicle Foldable Multi-Function Stone Remover

German Imported Stone Removal Hook Car Tire Stone Cleaning Tool Vehicle Foldable Multi-Function Stone Remover

$11.34

[10% Off for 2 Items] Double-Sided Wool Felt Mat for Calligraphy and Painting, Student Practice Sheet, Brush Writing Desk Pad, Four Treasures of the Study Set

[10% Off for 2 Items] Double-Sided Wool Felt Mat for Calligraphy and Painting, Student Practice Sheet, Brush Writing Desk Pad, Four Treasures of the Study Set

$6.63

In Stock Special Offer: QS18VP6LLPQ8 Sensor - Price Negotiable

In Stock Special Offer: QS18VP6LLPQ8 Sensor - Price Negotiable

$600.00

Broccoli Vegetable Washing Machine for Pre-made Dishes, Water Bath Cleaning Equipment with Bubble System for Herbs and Export-Grade Produce

Broccoli Vegetable Washing Machine for Pre-made Dishes, Water Bath Cleaning Equipment with Bubble System for Herbs and Export-Grade Produce

$615.00

Hongkedou Oxford Fabric Bag-in-Bag Divider Insert, Stiff Makeup Organizer with Zipper, Waterproof Small Women's Pouch

Hongkedou Oxford Fabric Bag-in-Bag Divider Insert, Stiff Makeup Organizer with Zipper, Waterproof Small Women's Pouch

$22.00

Pad Printing Machine Accessories: Positioning Clamps, T-Shaped Holders, and Locking Irons

Pad Printing Machine Accessories: Positioning Clamps, T-Shaped Holders, and Locking Irons

$0.60

Japanese High-Concentration Oxalic Acid Toilet Cleaner, Powerful Urine Scale Remover and Stain Eliminator

Japanese High-Concentration Oxalic Acid Toilet Cleaner, Powerful Urine Scale Remover and Stain Eliminator

$23.82

Biliansheng No-Shave Hair Transplant - Hairline and Crown Thinning Treatment, Hair Loss Detection Service

Biliansheng No-Shave Hair Transplant - Hairline and Crown Thinning Treatment, Hair Loss Detection Service

$86.00

Laorentou Paper Blending Stump for Sketching - Professional Art Supply for Highlighting and Pastel Work

Laorentou Paper Blending Stump for Sketching - Professional Art Supply for Highlighting and Pastel Work

$6.80

Fast-Drying Glue for ABS Plastic - Transparent, High-Strength, Odorless, Non-Whitening Instant Adhesive for ABS and PC Plastics

Fast-Drying Glue for ABS Plastic - Transparent, High-Strength, Odorless, Non-Whitening Instant Adhesive for ABS and PC Plastics

$58.96

Manufacturer Supply Oxygen Absorber Oxygen Generator Stable Performance Hydrogen-Rich Machine Hydrogen Generator

Manufacturer Supply Oxygen Absorber Oxygen Generator Stable Performance Hydrogen-Rich Machine Hydrogen Generator

$5,058.00

POPMART CRYBABY Vacation Mode On - Vinyl Plush Keychain Blind Box

POPMART CRYBABY Vacation Mode On - Vinyl Plush Keychain Blind Box

$106.99