Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Connectors and Fasteners |
| Origin | - |
| Material | Alloy Steel |
| Strength Grade | 12.9 |
| Surface Finish | Black Oxide |
| Head Type | Socket Head Cap |
| Drive Style | Internal Hex |
| Thread Type | Metric Coarse |
| Size Range | M2, M2.5, M3, M4, M5, M6, M8, M10, M12, M14, M16, M20 |
| Tensile Strength | 1220 MPa (Minimum) |
| Hardness | 39-44 HRC |
| Compliance Standard | DIN 912 / ISO 4762 |
Anonymous
Mar 30, 2026
Rating: 5/5
Top Quality Bolts
These screws held up perfectly under high tension in my machinery assembly. The black oxide finish looks professional and the threads are cut very cleanly.
Anonymous
Mar 01, 2026
Rating: 5/5
Perfect for CNC
Used for mounting components on my CNC router. The head height is consistent and they sit flush in the counterbores.
Anonymous
Feb 28, 2026
Rating: 4/5
Great Strength
Very strong fasteners as expected from Grade 12.9. Only giving 4 stars because the packaging was slightly damaged during shipping, but the bolts were fine.
Anonymous
Jan 30, 2026
Rating: 5/5
Reliable Supply
Consistent quality across different sizes. I ordered a mix of M4 and M8 and both batches met the specifications.
Anonymous
Jan 29, 2026
Rating: 5/5
Precise Threading
No issues with stripping during installation. I used the M6 size for a custom jig and they tightened smoothly without binding.
Q: Do you offer M24 sizes in this grade?
A: Currently, this listing supports sizes from M2 to M20. Please contact us directly for inquiries regarding larger diameters.
Q: What hex key size is required for the M6 bolts?
A: For M6 Socket Head Cap Screws, a 5mm hex key is typically required according to DIN 912 standards.
Q: Are these suitable for outdoor applications?
A: The black oxide finish provides mild corrosion resistance. For harsh outdoor environments, we recommend applying additional coating or grease.
Q: What is the approximate yield strength for these screws?
A: For Grade 12.9 alloy steel, the yield strength is typically around 1100 MPa. Please refer to the technical datasheet for specific size variations.
Q: Is a material certificate available with purchase?
A: Yes, mill certificates are available upon request for bulk orders. Please message us after placing your order.
Fengzhu Wet-Dry Separation Waterproof Bag Shoulder Crossbody Pack for Outdoor Fitness Swimming Camping Electronics Storage
$109.00
Palette for Traditional Chinese Painting, Oil, Acrylic - Art Student and Kids Painting Watercolor Pigment Tray
$5.78
Huirui Polypropylene (PP) Super Glue - Fast-Setting Adhesive for Metal, Plastic, TPE, Silicone, Soft PVC, and TPU
$16.80
Bybo Dental Sweden Nobel CC Dental Implant Package Including Crown and Abutment
$6,924.00
Remote Control Negative Ion Air Purifier Home Indoor Formaldehyde Smoke Odor Haze Removal Intelligent Sterilization Disinfection Machine
$76.30
Car Tire Stone Removal Hook, Tool for Clearing Stones Stuck in Tires to Prevent Blowouts, Multi-Function Stone Extractor
$8.42
Motorcycle and E-bike Storage Hook Kit - Multi-function Hanging Hooks for Storage Boxes, Locks, and Racks
$2.01
Mojo 100% Cotton Baohong Watercolor Line Art - Beginner Watercolor, Colored Pencil & Marker Coloring Kit: Cat Letters
$32.80
![[X11] McDull Little Theater Series Plush Sticker Blind Bag, Official Authentic Trendy Collectible Hanging Ornament Toy](https://www.gosteppe.com/cache/small/product/269614/legacy-main-c0c30a047a8b8fb01f07e4d1.webp)
[X11] McDull Little Theater Series Plush Sticker Blind Bag, Official Authentic Trendy Collectible Hanging Ornament Toy
$41.60
Factory Supply Food Processing Equipment - High-Yield Fruit Pitting Machine for Commercial Berry Peeling and Mud Removal
$6,210.00
Fast Shipping Stone Removal Hook New Car Tire Stone Cleaner Tool Multi-Function Vehicle Stone Remover
$29.82
Five Elements Balance Keychain – Pixiu Charm with Natural Crystal Pendant for Wood/Fire Enhancement
$42.40
Chunfei Grocery Store: Commuter Hard Fork Low-Top Tube Mountain Bike for Urban Roads, Suburbs, School Runs, and Outings
$2,246.00
Infant Rattle Toy - Baby Soothing Shaker Drum for Newborns, Chewable and Safe for Boys and Girls
$10.90
Car Tires for Sedans and Vans, Original Equipment Sizes 165/175/185/195/205R in 14/15/16 Inches
$59.00
New Cute Tomato-Shaped Cable Organizer Clip for Charging Cords and Headphone Wires, Fabric Fixed Winding Management
$15.60
Yokohama 245/50R19 V107E 105W Original BMW iX3 EV Tire - Factory Removed
$382.00
DC Drive Equipment
$18,800.00
Meiyike Plant Slow-Release Fertilizer – All-Purpose Nutrient Pellets for Green Plants and Flowers, Household Controlled-Release Compound Fertilizer
$20.15
Pelican Air 1535 Waterproof Shockproof Lightweight Case - Photography Equipment Safe with Wheels - 1535TP Carry-On
$2,565.00
Exclusive for 618 Live Stream 20260508
$199.00
Compact Home Range Hood, Portable USB Desktop Smoke Extractor for Living Room Hot Pot and BBQ Odor Removal
$41.00
Seed Bead Tassel Song Brocade Accessories DIY Ancient Style Bracelet Bag Chest Ornament High-Quality Pendant Versatile Tassel Accessory
$2.98
Popular Pagoda-Shaped Tea Set - Chinese Style Kung Fu Tea Ceremony Set for Home, Living Room, and Office Guest Reception
$67.00
Swiss-Type Lathe External Thread Insert 60° CNC TKFT12RA60005 Stainless Steel Cutting Tool RN6001
$33.00
Dual-Tip Highlighter Set, 6 Colors, Student Marker Pens, Pastel INS-Style Colorful Emphasis Markers
$3.02
Natural 7A Moist Blue Sapphire Loose Beads for DIY Crystal Jewelry Making
$2.24
Custom Company Door Sign, Office Nameplate, Outdoor Cut-Out Enterprise Studio Logo Identifier Background Plaque
$122.20
LA・LA・LA LOVE SONG by Toshinobu Kubota - Precise Saxophone Transcription Sheet Music (3-Piece Set)
$16.00
Hairline Transplantation | No-Shave Hair Transplant | 2000+ Grafts for Face-Framing High Crown Contouring
$25,800.00
![[M2-M20] Stainless Steel Spring Washer](https://www.gosteppe.com/cache/medium/product/16306/legacy-main-ef3d2dba3bde669d48e6cca2.webp)
