M16 x 55mm CE marked bolt set — Grade 8.8 bolt, nut and washer. M16 for end plate connections where standard 50mm length is just short
What Are CE Marked Bolts?
CE marked bolts are structural bolting assemblies tested and certified to BS EN 15048. Each set includes a bolt, nut, and washer manufactured as a matched assembly — they’re tested together, not individually. The CE mark confirms the assembly meets the mechanical performance requirements for non-preloaded structural bolting in steel construction.
In practical terms, if you’re building a portal frame, these are the bolts that connect your end plates, cleats, bracing, and eaves beam brackets to the steel frame. Building control and structural engineers will specify CE marked bolts on connection drawings because they need documented proof that the fixings meet the design loads.
What Grade Are These Bolts?
Our CE marked bolt sets are Grade 8.8 — the standard grade for structural steelwork connections in the UK. Grade 8.8 means the bolt has a tensile strength of 800 N/mm² and a yield strength of 640 N/mm². This is the grade your engineer will specify on connection drawings for portal frame buildings.
Each set includes an 8.8 bolt, a Grade 8 nut, and a hardened washer, all CE marked as a matched assembly.
Which Size Do I Need?
Bolt size is specified on your engineer’s connection drawings. The two key dimensions are the diameter (M12, M16, M20, M24) and the length. As a general guide for standard portal frame connections:
- M12 — purlin cleats, side rail cleats, lighter bracing connections
- M16 — end plate connections on smaller frames (178 x 102 UB rafters), some bracing
- M20 — end plate connections on medium to larger frames (203 x 133 UB and 254 x 146 UB rafters), eaves beam brackets
- M24 — heavier connections, larger portal frames
The bolt length depends on the combined thickness of the plates being connected plus the nut and washer. Your engineer’s drawing will specify both diameter and length, always check before ordering.
How Many Bolts Per Connection?
This depends on the connection type and the loads involved, but as a rough guide for typical agricultural portal frames:
- Apex end plate — typically 6 bolts (3 rows of 2)
- Eaves end plate — typically 6 bolts (3 rows of 2)
- Purlin cleat — typically 2 bolts per cleat
- Bracing connection — typically 2-4 bolts per plate
- Eaves beam bracket — typically 2-4 bolts
For a 6-bay shed with 7 frames, you might need 84 bolts just for the apex and eaves connections, plus another 80-120 for purlins and bracing. Always count from your drawings rather than estimating.
What Else Do I Need?
Each CE bolt set already includes the bolt, nut, and washer, it’s a complete assembly ready to use. For a full portal frame build, you’ll typically also need holding down bolts for the base connections and coach bolts if you’re fixing timber purlins to the cleats.
Why Buy CE Bolts From Us?
- Sold individually — order the exact quantity you need, no box quantities
- Complete assembly — bolt, nut, and washer in every set
- CE marked to BS EN 15048 — certified structural bolting
- Grade 8.8 — standard structural steel grade
- Full size range — M12 to M24, lengths from 30mm to 120mm
Not sure which bolts you need? Send us your connection drawing on WhatsApp and we’ll confirm the right sizes and quantities.
Delivery Information
Estimated Dispatch: 4–7 Working Days
These items are supplied to order. Please allow 4–7 working days for dispatch from order confirmation. This ensures we maintain consistent quality and availability while keeping pricing competitive.
Standard Delivery Cost
Shipping is calculated at checkout based on weight and order size. Depending on the quantity ordered, items may be shipped in boxes or via pallet delivery.
Packaging
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Order Tracking
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Returns
We supply components to specification. If you’ve ordered the wrong item or something arrives damaged, please let us know within 5 working days and we’ll get it sorted.
For full details, see our Returns Policy.
