Fin neck bolts have two fins under a domed head that bite into timber or lock into a slotted channel so the bolt cannot turn while the nut is tightened. We stock them in Umm Al Quwain from M8 to M16, 25 to 150 mm, zinc plated and hot-dip galvanized, with nuts and washers.
A fin neck bolt (DIN 607 cup head nib bolt) is a round-head bolt with two small fins (nibs) on the underside of the head. When the bolt is pushed into a hole the fins embed in timber or engage a slot, holding the head still so the nut can be tightened from one side. It does the same job as a carriage bolt but works in metal channel and thinner timber where a square neck would not grip.
Applications
- Timber fencing, gates and decking
- Guard rail and crash barrier fixings
- Playground and outdoor timber structures
- Cable ladder and strut channel connections
- Conveyor guards and machine covers
- Truck body and trailer floors
Standards, grades & finishes
Bolts to DIN 607 dimensions, property class 4.6 / 4.8 (8.8 on request), threads ISO 965 6g coarse. Nuts DIN 934, washers DIN 125A / DIN 9021 large series. Finish zinc plated to ISO 4042 or hot-dip galvanized to ISO 1461 for external timber work.
This item is imported from approved mills and held in stock in our Umm Al Quwain warehouse alongside the anchor bolts, studs and plate washers we manufacture ourselves, so complete bolt sets ship from one source. Tensile, hardness and chemical testing is carried out by independent UAE-accredited laboratories, and EN 10204 3.1 certificates are issued with every batch. We supply across the GCC, MENA and Africa.