Skip to main content
Home / Connectors and Fasteners / Grade 12.9 High-Strength Socket Head Hex Bolt and Nut Combo Set, Flat and Spring Washers M2-M12

Attributes

Brand -
Category Industrial Small Parts / Connectors and Fasteners
Origin -
Material Alloy Steel
Strength Grade Class 12.9
Head Style Socket Head Cap
Drive Type Hex Socket (Allen)
Thread Size Range M2 to M12
Thread Standard Metric Coarse
Surface Finish Black Oxide
Kit Contents Screws, Nuts, Flat Washers, Spring Washers
Storage Case Durable Plastic Organizer
Recommended Use Machinery Assembly, Automotive Repair

5 reviews

A

Anonymous

Apr 24, 2026

Rating: 5/5

Excellent quality kit

Great assortment for my workshop. The 12.9 grade is genuine and holds up well under torque.

A

Anonymous

Mar 22, 2026

Rating: 5/5

Perfect for repairs

Saved me a trip to the hardware store. Case is sturdy and keeps everything organized.

A

Anonymous

Mar 11, 2026

Rating: 4/5

Good value

Most sizes are useful. Wish there were more M8 bolts included in the mix.

A

Anonymous

Feb 07, 2026

Rating: 5/5

Professional grade

Using these for engine work. No stripping issues on the hex sockets.

A

Anonymous

Jan 28, 2026

Rating: 5/5

Well organized

Labels on the box make finding sizes easy. Fast shipping too.

5 FAQ

Q: Are the threads metric or imperial?

A: All threads in this kit are metric standard.

Q: Can I buy refills for specific sizes?

A: Contact support for bulk orders of specific sizes.

Q: Is this stainless steel?

A: No, this is alloy steel treated for high tensile strength.

Q: Is there a certificate of analysis?

A: Mill certificates are available upon request for bulk orders.

Q: Does it include an Allen key?

A: No, tools are not included, only the fasteners and storage case.

Explore your interests

View More
All Categories
Best Seller (30)
New List (30)
Custom Insulated Steel Pipes from Factory - Heating Pipes for Residential Complexes, Spiral Insulated Pipes, Polyurethane Insulated Pipes

Custom Insulated Steel Pipes from Factory - Heating Pipes for Residential Complexes, Spiral Insulated Pipes, Polyurethane Insulated Pipes

$45.40

New Pirelli Tires 305/40R20 112V & 275/45R20 110V XL N1 for Porsche Cayenne

New Pirelli Tires 305/40R20 112V & 275/45R20 110V XL N1 for Porsche Cayenne

$1,409.00

Over-Toilet Storage Rack Wall-Mounted No-Drill Bathroom Multi-Function Organizer for Toilet Essentials

Over-Toilet Storage Rack Wall-Mounted No-Drill Bathroom Multi-Function Organizer for Toilet Essentials

$20.50

Kang Kati Gardenia Tea Scented Candle Gift Set – Long-Lasting Fragrance, Elegant Birthday Gift for Her

Kang Kati Gardenia Tea Scented Candle Gift Set – Long-Lasting Fragrance, Elegant Birthday Gift for Her

$35.10

Safety Self-Locking Lifting Hook with Adjustable Chain for Hoisting and Rigging

Safety Self-Locking Lifting Hook with Adjustable Chain for Hoisting and Rigging

$140.00

Thickened Mobile Phone Waterproof Case, Waterproof Box, Sealed Container, Pressure-Resistant Box, EDC Drop-Proof Storage Box for Outdoor Travel

Thickened Mobile Phone Waterproof Case, Waterproof Box, Sealed Container, Pressure-Resistant Box, EDC Drop-Proof Storage Box for Outdoor Travel

$12.00

Commercial Heated Display Cabinet for Crispy Pork Belly, Roast Chicken, and Cantonese BBQ - Constant Temperature Warmer for Peking Duck

Commercial Heated Display Cabinet for Crispy Pork Belly, Roast Chicken, and Cantonese BBQ - Constant Temperature Warmer for Peking Duck

$1,394.00

Mejiang Baohong Watercolor Line Art for Beginners, Coloring Book with Colored Pencils and Markers, Cat Letter Theme

Mejiang Baohong Watercolor Line Art for Beginners, Coloring Book with Colored Pencils and Markers, Cat Letter Theme

$29.70

Shanghai Huamei Hair Transplant, Solution for Hair Loss, Thinning, and Density Enhancement

Shanghai Huamei Hair Transplant, Solution for Hair Loss, Thinning, and Density Enhancement

$6,750.00

New Direct Sale Nanda Silicone Rubber 704 Battery Fixative Adhesive Panel Light Special Glue Photovoltaic Solar Sealant

New Direct Sale Nanda Silicone Rubber 704 Battery Fixative Adhesive Panel Light Special Glue Photovoltaic Solar Sealant

$25.85

Yonghe Hair Transplant: Top Scalp Density Enhancement (2000+ Units Fixed Price)

Yonghe Hair Transplant: Top Scalp Density Enhancement (2000+ Units Fixed Price)

$33,800.00

No-Drill Bathroom Storage Rack – Toilet Paper Organizer for Dorms and Restrooms

No-Drill Bathroom Storage Rack – Toilet Paper Organizer for Dorms and Restrooms

$22.16

Premium Metallographic Polishing Cloth – White Short-Pile Velvet for Mirror Finish Grinding by Goral

Premium Metallographic Polishing Cloth – White Short-Pile Velvet for Mirror Finish Grinding by Goral

$35.00

Rock Guitar Hell Training: Electric Guitar Textbook and Tutorial by Shinichi Kobayashi, Beginner to Intermediate Chinese Guitar Book and Sheet Music

Rock Guitar Hell Training: Electric Guitar Textbook and Tutorial by Shinichi Kobayashi, Beginner to Intermediate Chinese Guitar Book and Sheet Music

$58.69

Aromatherapy Candle Resin Jelly Wax Strawberry Silicone Mold, Large Squishy Handmade Soap DIY Material

Aromatherapy Candle Resin Jelly Wax Strawberry Silicone Mold, Large Squishy Handmade Soap DIY Material

$1.90

Liboer Drill-Free Security Camera Mount & Router Shelf – Adhesive-Free Wall Bracket for 360 PTZ Cameras and Sockets

Liboer Drill-Free Security Camera Mount & Router Shelf – Adhesive-Free Wall Bracket for 360 PTZ Cameras and Sockets

$21.90

City Hunter Theme Song Mr. Chui Saxophone Three-Piece Precise Transcription Service

City Hunter Theme Song Mr. Chui Saxophone Three-Piece Precise Transcription Service

$16.00

[Deposit Group 12] New Colors: Hugging Bear Matte Low-Mid Heel Lolita Shoes - Sheep Puff with Bear Buckle

[Deposit Group 12] New Colors: Hugging Bear Matte Low-Mid Heel Lolita Shoes - Sheep Puff with Bear Buckle

$38.00

Handcrafted Peach Wood and Brass Baby Rattle - Non-Toxic Paint-Free Teething Toy for Infants

Handcrafted Peach Wood and Brass Baby Rattle - Non-Toxic Paint-Free Teething Toy for Infants

$32.00

Car Tire Stone Removal Hook - Debris Cleaning Tool for Wheels

Car Tire Stone Removal Hook - Debris Cleaning Tool for Wheels

$6.19

Ceramic Rabbit Egg Holder – Creative Irregular Egg Stand for Breakfast or as a Decorative Gift

Ceramic Rabbit Egg Holder – Creative Irregular Egg Stand for Breakfast or as a Decorative Gift

$33.82

Toilet Tank Side Shelf Bathroom Storage Rack No-Drill Organizer for Bathroom Essentials

Toilet Tank Side Shelf Bathroom Storage Rack No-Drill Organizer for Bathroom Essentials

$10.40

No-Drill Over-Toilet Storage Rack for Bathroom Restroom Organizer

No-Drill Over-Toilet Storage Rack for Bathroom Restroom Organizer

$8.90

Artsneak Blending Stump for Oil Pastels, Dual-Tip Sponge Brush Art Student Painting Tool Set, Washable and Crumb-Free

Artsneak Blending Stump for Oil Pastels, Dual-Tip Sponge Brush Art Student Painting Tool Set, Washable and Crumb-Free

$14.20

75X100 Imitation Inkjet Transfer Steel Plate for Date Coding - Custom Logo and Trademark Available

75X100 Imitation Inkjet Transfer Steel Plate for Date Coding - Custom Logo and Trademark Available

$38.00

Lint-Free Cloth 1009DLE/SLE - Straight/Net Weave for UV Printhead, Screen, Lens Cleaning, Industrial Wiping Cloth

Lint-Free Cloth 1009DLE/SLE - Straight/Net Weave for UV Printhead, Screen, Lens Cleaning, Industrial Wiping Cloth

$10.80

Pirelli PZ4 Tires, Sizes 235/245/255/265/285/40/45/50/55 R19/R20/R21/R22

Pirelli PZ4 Tires, Sizes 235/245/255/265/285/40/45/50/55 R19/R20/R21/R22

$350.00

Wooden Plaque Carved Signboard for Business Opening, Antique-Style Shop Entrance Header, Custom Engraved Solid Wood Couplets MWU

Wooden Plaque Carved Signboard for Business Opening, Antique-Style Shop Entrance Header, Custom Engraved Solid Wood Couplets MWU

$182.96

Kumho ES01 Car Tires: Sizes 155/165/175/185/205 with Aspect Ratios 55/60/69 and Rim Diameters 14/15/16/17

Kumho ES01 Car Tires: Sizes 155/165/175/185/205 with Aspect Ratios 55/60/69 and Rim Diameters 14/15/16/17

$458.00

Mont Marte Paint Brushes, Creative Children's Painting Brush Set (3 Pieces), Tempera Brush Kit for Kids

Mont Marte Paint Brushes, Creative Children's Painting Brush Set (3 Pieces), Tempera Brush Kit for Kids

$6.50