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Power Tools Direct£0.98Visit shop Timco 630Snzp Set Screws & Hex Nuts - Grade 8.8 - Zinc M6 X 30 Timpac 4
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B&Q£5.08Visit shop B&Q - TimcoSet Screws & Hex NutsGrade 8.8Zinc (Size M6 X 304 Pieces)
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The Timco M6 x 30 Set Screws & Hex Nuts are designed for engineers, DIY enthusiasts, and builders who require a reliable, high-strength fastening solution for structural or mechanical assemblies. Featuring grade 8.8 carbon steel construction, these fasteners offer excellent load-bearing capacity and a protective zinc finish, making them ideal for heavy-duty projects; however, they are primarily suited for indoor or controlled environments due to the limitations of Trivalent Chromium zinc plating against severe outdoor corrosion.
| Model Part Number | 630SNZP |
|---|---|
| Brand | Timco |
These screws are grade 8.8, which indicates high tensile strength suitable for structural applications.
You need a 10mm socket or wrench to fit the hex head.
They feature a zinc finish which provides basic corrosion resistance, but they are best suited for indoor, garage, or workshop environments.
These utilize the standard coarse metric thread pitch for M6 fasteners.
Only if the application does not require the specific corrosion resistance of stainless steel; grade 8.8 steel is stronger but more prone to surface rust if the plating is damaged.
Check the threads for debris or metal burrs; if the nut is tight, try cleaning the threads or ensuring the bolt is perfectly perpendicular to the nut face.
Ensure you are using a correctly sized 10mm socket that fits snugly; avoid using adjustable wrenches which can slip and damage the head profile.
To ensure the longevity of these fasteners, avoid overtightening beyond the recommended torque specifications for M6 grade 8.8 bolts. When installing, always check that the threads are clean of debris to prevent cross-threading with the matching nuts. While the Trivalent Chromium plating is resilient, applying a small amount of anti-seize lubricant to the threads before assembly can prevent galling, especially when using power tools. Store the remaining fasteners in a dry environment to maintain the integrity of the zinc finish.
