M8-1.25 x 25 mm Flanged Hex Head Bolts Flange Hexagon Screws, Full Thread, Alloy Steel, Zinc Plated, Quantity 20
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- 10.9 GRADE STEEL STRENGTH M8x20mm bolts made of 10.9-grade alloy steel (30% stronger than 8.8-grade) for extreme load-bearing and shear resistance in automotive, machinery, and heavy-duty applications.
- BLACK ZINC PLATING | 96H SALT SPRAY TEST Durable black zinc coating exceeds 98-hour salt spray resistance (vs. standard black oxide), preventing rust in marine, outdoor, or high-humidity environments.
- DIN6921 FLANGE DESIGN Precision-engineered flange head (DIN6923 compliant) distributes pressure evenly, reduces vibration loosening, and protects soft surfaces like aluminum or plastics.
- UNIVERSAL M8-1.25 COMPATIBILITY Perfect for OEM replacements in engines, industrial equipment, marine use, and DIY projects. Includes crush-proof storage case for easy organization.
- QUICK INSTALLATION GUARANTEE Pre-aligned threads work with 13mm wrenches. Backed by lifetime warranty and 24/9 support for risk-free purchasing.
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Select a product to estimate shipping.High-Strength Hex Flange Head Bolts with Black Zinc Coating
These Grade 10.9 Hex Flange Head Bolts are engineered for demanding applications in automotive, truck repair, and industrial machinery maintenance. Featuring a robust hexagonal flange design, they distribute load evenly to prevent loosening under vibration and reduce surface pressure. The black zinc-plated finish provides exceptional corrosion resistance, ensuring durability in harsh environments. With a tensile strength of 1,000 MPa and a yield strength of 900 MPa, these bolts deliver reliable performance for heavy-duty fastening tasks. Ideal for engine components, chassis systems, and equipment assembly, they combine industrial-grade toughness with a sleek, low-reflective appearance. Backed by ISO 898-1 standards, these bolts are precision-crafted for safety-critical repairs and long-term mechanical stability.
Product details
| Main Specification | |
|---|---|
| Fastener Type | Hexagon Bolt or Flange Bolt |
| Manufacturer | LUPANTER |
| Unit Count | 20 Count |
| Exterior Finish | Zinc |
| Head Style | Hex Flange |
| Manufacturer Grade | Heavy-Duty |
| Thread Coverage | Fully Threaded |
| Outside Diameter | 8 millimeters |
| Brand | Lupanter |
| Head Type | Flanged |
| Item Diameter | 8 Millimeters |
| Number of Pieces | 20 |
| Fastener Size | M8 x 25 |
| Thread Size | M8-1.25 |
| Material | Carbon Steel |
| Colour | Black |
| Thread Type | Metric |
| Drive System | External Hex |
| Technical Details | |
| Part Number | flange M8*25 |
| Material Type | Carbon Steel |
| Number Of Items | 20 |
| Thread Style | Right Hand |
| Compatible groove diameter | 8 Millimeters |
| Item Hardness | Grade 10.9 |
| Set Screw Thread Type | Metric |
| Style | |
| Finish Types | Plated |
| Measurements | |
| Item Dimensions | 3.94 x 2.99 x 0.59 inches |
| Others | |
| Product Type | Hex Bolts |
| Size Name | M8 x 25 |
| Screw Head Style | Hex Flange |