METALMATE High Tensile Set Screw - Grey - M6 x 30mm
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Product Information
Full details
The METALMATE High Tensile Set Screw is a professional-grade fastening solution designed for engineers, builders, and DIY enthusiasts requiring reliable, high-strength connections in construction, repair, and machinery maintenance. These Grade 8.8 steel screws provide exceptional structural integrity and are zinc-plated to resist corrosion, making them suitable for both indoor and outdoor environments. While they offer excellent durability and a convenient 500-piece supply per box, users should ensure they have the appropriate tools for torque management to avoid over-tightening during installation.
All features
| Colour | Grey |
|---|---|
| Model Part Number | 1264359 |
| Brand | METALMATE |
Extended Product Information
FAQs
What does the Grade 8.8 rating mean?
Grade 8.8 indicates the tensile strength of the steel, specifically that it has a minimum tensile strength of 800 MPa and a yield strength of 640 MPa.
Can I use these outdoors?
Yes, the zinc-plated finish provides adequate protection for general outdoor environments, though they should be avoided in harsh marine or chemical-heavy conditions.
Are these screws fully threaded?
Yes, these are fully threaded fasteners as per the DIN 933 standard.
What is the standard for these screws?
They are manufactured according to the DIN 933 standard, which covers hexagon head bolts with threads up to the head.
How many screws are in a single box?
Each box contains 500 screws.
Are these suitable for wood applications?
While they are primarily designed for metal engineering and mechanical use, they can be used in wood if a pre-drilled, threaded insert or nut is utilized.
Troubleshooting
Screw is difficult to thread into the hole.
Verify that the hole is tapped to the correct M6 specification and that there is no debris or burrs inside the thread.
Surface rust appearing on the screw head.
Check if the zinc-plated finish has been scratched during installation; apply a touch of anti-corrosion spray or grease to exposed metal.
Screw strips during tightening.
Ensure the drive tool size matches the head specification exactly and confirm you are not exceeding recommended torque settings.
Pros and Cons
Pros
- High-tensile Grade 8.8 rating for heavy-duty applications
- Corrosion-resistant zinc plating for interior and exterior utility
- Manufactured to strict DIN 933 industry standards
- Large 500-piece quantity per box reduces restocking frequency
- Versatile full-thread design for secure fastening
Cons
- Requires precise torque tools to prevent damage
- Not intended for marine or highly caustic environments
- Bulk quantity may be excessive for minor household repairs
Setup, Compatibility & Care
For optimal performance, ensure that the mating hole is properly tapped or sized for the M6 diameter. Use a calibrated wrench or socket set to achieve the manufacturer's recommended torque, avoiding the use of impact drivers unless specifically set to low-torque settings. While these screws are zinc-plated to resist rust, it is advisable to inspect them periodically if used in high-humidity areas. Avoid using these screws with incompatible metals to prevent galvanic corrosion.