Skip to main content
ALL Category
Bagisto
Login / My Cart
ROOT Electronic Components / Maker DIY 3D Printing Accessories Repair Parts Model / Hobby Parts Specialty Tools / Unique Tools Robotics / STEM Teaching Tools Industrial Small Parts Musical Instrument Accessories Cosplay / Prop Accessories Special Daily Living Tools Imported Products Packaging Snacks, Nuts & Local Specialties Personal Care, Health & Massage Equipment Luggage & Leather Goods: Best-Selling Women's & Men's Bags Women's Shoes
Home / Connectors and Fasteners / GB70 Cylinder Head 8.8 Grade Internal Hex Screw, High-Strength Cup Head, Internal Hex Bolt C4 M5 M6 mm 10 M12
Connectors and Fasteners

Attributes

Brand -
Category Industrial Small Parts / Connectors and Fasteners
Origin -
Material Carbon Steel
Strength Grade 8.8 Class
Head Style Socket Cap Head
Drive Type Internal Hexagon
Thread Standard Metric Coarse
Surface Finish Black Oxide
Thread Direction Right Hand
Point Type Flat Point
Compliance Standard GB70 / DIN912
Package Type Bulk Box

5 reviews

A

Anonymous

Apr 22, 2026

Rating: 4/5

Fast Shipping

Product arrived quickly and matches the description. Good selection of sizes available.

A

Anonymous

Apr 12, 2026

Rating: 4/5

Good Value

Works well for my project. Threads are clean and consistent. Packaging was secure.

A

Anonymous

Mar 14, 2026

Rating: 5/5

Excellent Quality

These screws are very strong and fit perfectly into my machinery assembly. The black oxide finish looks professional.

A

Anonymous

Feb 14, 2026

Rating: 5/5

Sturdy Fasteners

Happy with the 8.8 grade strength. Used them for automotive repairs and they hold torque well.

A

Anonymous

Feb 07, 2026

Rating: 5/5

Precise Threads

Threads fit perfectly without cross-threading. High strength grade gives me confidence in the build.

5 FAQ

Q: Do you offer M8 size in this listing?

A: Yes, please select the M8 option from the size variation menu before adding to cart.

Q: What is the hardness rating?

A: The 8.8 grade typically corresponds to a hardness range of 22 to 32 HRC.

Q: What Allen key size is needed for M5?

A: For an M5 socket cap screw, you will typically need a 4mm Allen key.

Q: Are these suitable for outdoor use?

A: Black oxide offers limited corrosion resistance. For outdoor use, we recommend applying additional oil or coating.

Q: Is this material stainless steel?

A: No, this product is made of carbon steel with a black oxide finish for general industrial use.

Explore your interests

Japan BPJ Imported Deep Groove Ball Bearings 6006 6007 6008 6009 6010 6011 ZZ RS P4

Japan BPJ Imported Deep Groove Ball Bearings 6006 6007 6008 6009 6010 6011 ZZ RS P4

$23.31

PNY8LMK10 12 13 16 20 25 30 35 40LUU50 Extended Square Flange Linear Bearing Imported

PNY8LMK10 12 13 16 20 25 30 35 40LUU50 Extended Square Flange Linear Bearing Imported

$37.00

45# Medium Carbon Steel Straight Guide Bushing: Inner Diameter D10-D50, Shoulderless Straight Liner, Bushing, Steel Sleeve

45# Medium Carbon Steel Straight Guide Bushing: Inner Diameter D10-D50, Shoulderless Straight Liner, Bushing, Steel Sleeve

$1.00

Heavy-Duty Galvanized Double Round Clamps for Utility Poles, Street Light Poles, Iron/Steel Pipes, Cable Flat Bar Fasteners

Heavy-Duty Galvanized Double Round Clamps for Utility Poles, Street Light Poles, Iron/Steel Pipes, Cable Flat Bar Fasteners

$28.00

304 Stainless Steel Hex Socket Screw Cup Head Bolt Cylinder Head Extended M2 M2.5 M3 M4 M5 M6 M8 M10mm

304 Stainless Steel Hex Socket Screw Cup Head Bolt Cylinder Head Extended M2 M2.5 M3 M4 M5 M6 M8 M10mm

$1.43

German Imported YLV 304 Stainless Steel Corrosion-Resistant Bearings S6800/6801/6802/6803/6804/6805

German Imported YLV 304 Stainless Steel Corrosion-Resistant Bearings S6800/6801/6802/6803/6804/6805

$5.80

PTFE (Teflon) Fully Threaded Studs, Double-Ended Internal/External Hex Screws, Nuts, Bolts, Washers, and Spring Washers

PTFE (Teflon) Fully Threaded Studs, Double-Ended Internal/External Hex Screws, Nuts, Bolts, Washers, and Spring Washers

$4.50

T-Shaped Rubber Hexagonal Spider Coupling Elastic Block Polyurethane Buffer Pad Water Pump Shock Absorber Toughened Hex Pad

T-Shaped Rubber Hexagonal Spider Coupling Elastic Block Polyurethane Buffer Pad Water Pump Shock Absorber Toughened Hex Pad

$5.00

Stainless Steel Bushings (Inner Dia: 2/2.5mm, Outer Dia: 4/5/6mm), Steel Guide Sleeves, Wear-Resistant Liners, Miniature Spacers

Stainless Steel Bushings (Inner Dia: 2/2.5mm, Outer Dia: 4/5/6mm), Steel Guide Sleeves, Wear-Resistant Liners, Miniature Spacers

$2.00

Black 304 Stainless Steel Hex Nut, Flat Washer, and Spring Washer Kit M3-M10

Black 304 Stainless Steel Hex Nut, Flat Washer, and Spring Washer Kit M3-M10

$2.70

[M2-M20] Stainless Steel Spring Washer

[M2-M20] Stainless Steel Spring Washer

$0.76

Aluminum Alloy Spider Coupling Star Leadscrew Encoder High Torque Ball Screw Servo Motor Coupling

Aluminum Alloy Spider Coupling Star Leadscrew Encoder High Torque Ball Screw Servo Motor Coupling

$1.62

Grille Panel Invisible Fastener, Grille Strip Sliding Groove, Cabinet Top Line Connector, Roman Column Decorative Woodworking Clip Connection

Grille Panel Invisible Fastener, Grille Strip Sliding Groove, Cabinet Top Line Connector, Roman Column Decorative Woodworking Clip Connection

$5.80

Black 304 Stainless Steel Smooth Cup Head Socket Screw, Unknurled Cylinder Bolt M2 M3 M4 M5 M6 M8

Black 304 Stainless Steel Smooth Cup Head Socket Screw, Unknurled Cylinder Bolt M2 M3 M4 M5 M6 M8

$3.50

Imported Extended Square Flange Linear Bearing Electroplated Rust-Resistant LMK8 10 16 20 25 30 35 40LUU

Imported Extended Square Flange Linear Bearing Electroplated Rust-Resistant LMK8 10 16 20 25 30 35 40LUU

$12.20

Linear Shaft Guide Box-Type Slider Linear Bearing Steel Retainer Bronze Bushing SC8 12 13 16 22 53 35 45 0UU

Linear Shaft Guide Box-Type Slider Linear Bearing Steel Retainer Bronze Bushing SC8 12 13 16 22 53 35 45 0UU

$3.80

Guide Shaft Support Open-Type Flange Bearing Housing STHWRB Smooth Shaft Fixed Support GBJ Series Shaft Support

Guide Shaft Support Open-Type Flange Bearing Housing STHWRB Smooth Shaft Fixed Support GBJ Series Shaft Support

$11.00

Hardened Bearing Steel Bushing, Wear-Resistant Liner, High-Precision Guide Sleeve, Collar, and Spacer Set

Hardened Bearing Steel Bushing, Wear-Resistant Liner, High-Precision Guide Sleeve, Collar, and Spacer Set

$3.69

Imported Bearing Model Assortment: 6000RS, 6001 High-Speed, 6002 Motor, 6003, 6004, 6005, 6006

Imported Bearing Model Assortment: 6000RS, 6001 High-Speed, 6002 Motor, 6003, 6004, 6005, 6006

$2.50

25mm Round Stainless Steel Pipe Connector, Clothes Drying Rack Accessory, Display Stand Fastener, Shelf Fixing Two-Way Joint

25mm Round Stainless Steel Pipe Connector, Clothes Drying Rack Accessory, Display Stand Fastener, Shelf Fixing Two-Way Joint

$1.20

View More
All Categories
Best Seller (30)
New List (30)
Youzhao Pai Creative Retro 3D Embossed House Number Plate – Custom Door Signs for Villas, Commercial Spaces, and Homes

Youzhao Pai Creative Retro 3D Embossed House Number Plate – Custom Door Signs for Villas, Commercial Spaces, and Homes

$200.00

Tianzheng DZ15LE-100/3N901T 100A Transparent Leakage Circuit Breaker, Molded Case Circuit Breaker 3901T 63A

Tianzheng DZ15LE-100/3N901T 100A Transparent Leakage Circuit Breaker, Molded Case Circuit Breaker 3901T 63A

$278.00

[Daimai Holds Micro-Needle Hair Transplant Patent] Little Red Cap Hydro Glow | Scalp Hydration and Repair

[Daimai Holds Micro-Needle Hair Transplant Patent] Little Red Cap Hydro Glow | Scalp Hydration and Repair

$880.00

Pelican Rolling Case pelican1560 - Waterproof Shockproof Safety Case for Photography Equipment and Instruments

Pelican Rolling Case pelican1560 - Waterproof Shockproof Safety Case for Photography Equipment and Instruments

$1,550.00

Disipulai Hot Air Circulation Vertical Food Warmer Display Cabinet - Adjustable Temperature Countertop Cooked Food Warming Equipment

Disipulai Hot Air Circulation Vertical Food Warmer Display Cabinet - Adjustable Temperature Countertop Cooked Food Warming Equipment

$2,023.00

Complete Pasteurization Production Line for Pomegranate, Grape, Orange, Apple Juice, and Mare's Milk

Complete Pasteurization Production Line for Pomegranate, Grape, Orange, Apple Juice, and Mare's Milk

$6,048.00

Portable Tire Stone Removal Tool - Essential Handheld Hook for Car Owners

Portable Tire Stone Removal Tool - Essential Handheld Hook for Car Owners

$13.73

Factory Direct Longan 160 Curved Hot Stamping Machine Fully Automatic Hot Foil Printer Pneumatic Heat Press Leather Embossing Machine

Factory Direct Longan 160 Curved Hot Stamping Machine Fully Automatic Hot Foil Printer Pneumatic Heat Press Leather Embossing Machine

$10,000.00

Bean Sprout Germinator Tray, Hydroponic Vegetable Growing Container, Soil-Free Pea Sprouting Pot

Bean Sprout Germinator Tray, Hydroponic Vegetable Growing Container, Soil-Free Pea Sprouting Pot

$14.06

TOPTOY Crayon Shin-chan Memory Echo Series Blind Box - Anime Figure Collectible Toy and Birthday Gift

TOPTOY Crayon Shin-chan Memory Echo Series Blind Box - Anime Figure Collectible Toy and Birthday Gift

$47.20

Natural Lightning Cat's Eye Yellow Tiger Eye Loose Beads, Single Crystal Beads for DIY Bracelets and Accessories

Natural Lightning Cat's Eye Yellow Tiger Eye Loose Beads, Single Crystal Beads for DIY Bracelets and Accessories

$3.91

Pirelli Tire 235/55R19, Original Equipment for Mercedes-Benz GLC, Genuine Tire Compatible with Audi/Land Rover/etc.

Pirelli Tire 235/55R19, Original Equipment for Mercedes-Benz GLC, Genuine Tire Compatible with Audi/Land Rover/etc.

$512.00

Biliansheng Hair Transplant: No-Shave Hairline Restoration, Top Thinning Density Enhancement, Nationwide Chain

Biliansheng Hair Transplant: No-Shave Hairline Restoration, Top Thinning Density Enhancement, Nationwide Chain

$9,999.00

Luru Authentic 15-Note Steel Tongue Drum - Professional Grade for Beginners, Adults, and Children

Luru Authentic 15-Note Steel Tongue Drum - Professional Grade for Beginners, Adults, and Children

$500.00

MOOCAT [Postage Stamp Stub] Hand-Drawn Blank Irregular Wood Pulp Fine-Texture Paper for Cyanotype, OC Signing, and Collage

MOOCAT [Postage Stamp Stub] Hand-Drawn Blank Irregular Wood Pulp Fine-Texture Paper for Cyanotype, OC Signing, and Collage

$9.90

Used Car Tires - Sizes 155/165/175/185/195/205/215 for 13/14/15/16 inch Rims

Used Car Tires - Sizes 155/165/175/185/195/205/215 for 13/14/15/16 inch Rims

$140.00

Pin Puller Extractor Mechanical Repair Tool Bearing Puller and Locating Pin Extractor

Pin Puller Extractor Mechanical Repair Tool Bearing Puller and Locating Pin Extractor

$76.50

Water Brush Pen Set with Large Capacity - Essential Tools for Beginners Using Gouache, Solid Watercolor Paints, and Line Drawing; Perfect for Art Students

Water Brush Pen Set with Large Capacity - Essential Tools for Beginners Using Gouache, Solid Watercolor Paints, and Line Drawing; Perfect for Art Students

$32.00

C9335 Automotive Brake Disc Lathe – Resurfacing, Boring, Grinding & Polishing Machine

C9335 Automotive Brake Disc Lathe – Resurfacing, Boring, Grinding & Polishing Machine

$16,005.00

Jaguar Tire Lug Nuts Compatible with XE/XF/XJL/F-TYPE/F-PACE - Wheel Hub Screw Caps for Modification

Jaguar Tire Lug Nuts Compatible with XE/XF/XJL/F-TYPE/F-PACE - Wheel Hub Screw Caps for Modification

$118.00

Three-Hook Tire Stone Removal Tool, Wheel Groove Cleaner for Removing Stones from Vehicle Tires

Three-Hook Tire Stone Removal Tool, Wheel Groove Cleaner for Removing Stones from Vehicle Tires

$4.80

Pad Printer Accessories: 4-Inch Blade Clamp, Blade Holder, and Doctor Blade Assembly

Pad Printer Accessories: 4-Inch Blade Clamp, Blade Holder, and Doctor Blade Assembly

$5.40

3M Industrial Scouring Pad 7447C, Metal Rust Removal, Stainless Steel Brushing and Polishing Cloth

3M Industrial Scouring Pad 7447C, Metal Rust Removal, Stainless Steel Brushing and Polishing Cloth

$4.00

Qinghe Blazing Rose Series

Qinghe Blazing Rose Series

$1,580.00

Cheddar Cheese Production Line, Front-End Processing and Deep Processing Machinery, Mozzarella Cheese Equipment

Cheddar Cheese Production Line, Front-End Processing and Deep Processing Machinery, Mozzarella Cheese Equipment

$25,480.00

MGQ Konjac Noodle Bubble Cleaning Machine, Fully Automatic Soaking and Lifting Washer

MGQ Konjac Noodle Bubble Cleaning Machine, Fully Automatic Soaking and Lifting Washer

$17,555.40

Industrial Large Meat Grinder Fresh Meat Mince Chopper Fruit Vegetable Crusher Meat Grinding and Mixing Integrated Meat Filling Mixer

Industrial Large Meat Grinder Fresh Meat Mince Chopper Fruit Vegetable Crusher Meat Grinding and Mixing Integrated Meat Filling Mixer

$32,030.00

Zhuolide D-302 UV Glue - Invisible Adhesive for Transparent Glass, Metal, Coffee Tables, and Crystal Glass, 250g Large Capacity

Zhuolide D-302 UV Glue - Invisible Adhesive for Transparent Glass, Metal, Coffee Tables, and Crystal Glass, 250g Large Capacity

$130.00

Hell Training Rock Guitar by Shinichi Kobayashi: Electric Guitar Tutorial for Speed Playing

Hell Training Rock Guitar by Shinichi Kobayashi: Electric Guitar Tutorial for Speed Playing

$106.00

[Buy One Get One Free] Natural Agarwood, Sandalwood, and Cypress Incense Powder Set with Electric Burner

[Buy One Get One Free] Natural Agarwood, Sandalwood, and Cypress Incense Powder Set with Electric Burner

$8.42