Square Bolt (C Bolt) M6 x 18 mm Thread, 41 x 38 mm Internal Dimensions - T316 (A4) Stainless Steel


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Square Bolt (C Bolt) M6 x 18 mm Thread, 41 x 38 mm Internal Dimensions - T316 (A4) Stainless Steel

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£ 3.19 tax incl.

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Quantity Discount Unit price
50 10% £ 2.87
80 15% £ 2.71
100 20% £ 2.55
200 25% £ 2.39
500 30% £ 2.23
1000 35% £ 2.07
2000 40% £ 1.92
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Square Bolt (C Bolt) M6 x 43 mm Thread, 41 x 38 mm Internal Dimensions - T316 Stainless Steel (A4)

Complete with 1 full nut and 1 half nut on each leg

Ideal for fastening two off 20*20 RHS (Rectangular hollow Section) in landscape orientation, but of course will have many uses

Please refer to diagram for details (all measurements in mm):

RHS : 20*20

A = 6 mm

B = 41 mm

C = 38 mm

D = 18 mm

Centers = 47 mm


Our manufacturing tolerances are + / - 1 mm)

We use roll threading so the diameter of the bar is usually less than the thread size. Please ask if unsure

Data sheet
Material T316 Stainless Steel (A4)
Inside Diameter 41
Inside Height 38
Thread Size M6
Leg Centers 47
Leg Length 38
Thread length 18
Product Type C / Square-Bolt
Design Suit RHS Extended Landscape
Delivery Details

We offer a range of delivery options based on the weight of the overall shopping cart and your specific location.

After adding the products to the shopping cart you will see a range of options based on delivery to mainland UK. Change country and the delivery options will be modified for your address.

  • Please be aware of our latest order times for same-day dispatch (2 PM)
  • We ship orders every weekday
  • Be aware of current stock levels (shown on the product page and the checkout page)
  • Be aware of our shipping terms and conditions (CLICK HERE) which basically state we may upgrade delivery at our discretion and that we are not responsible for late deliveries outside of our control


Every product page and the cart shows the current stock level. Our normal practice is to only ship the full order unless the shortfall is our fault.

If you can see we are short of stock and want to receive what we have as soon as possible, and the remainder when they are available, then add this product to the shopping cart also (UK Only):


Reviews (2)

Rated 5.00 on the scale 1 - 5 based on 2 customer reviews
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Great product

These were exactly what I needed to fix my solar panel onto the roof rack of my van! Couldn’t believe how quickly they came as well I ordered them at 14.00 and they’d arrived by 09.00 the next morning thank you!!

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as advertised

As described, arrived promptly.

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