Galvanised Thru Bolts and Wedge Anchors

Through (Thru) Bolts / Wedge Anchors are anchors designed to fix a component to concrete and offers the advantage of needing the same clearance hole diameter as the drill hole. The design gives high tensile and shear performance, with simple installation and instantaneous load capability. The Through (Thru) Bolt / Wedge Anchor is ideal for attaching steel components to concrete such as ledger angle, wall ties, support brackets, props and timber beams to concrete. The galvanised coating is suitable for most outdoor applications. Please see below table on each item for grip range, drill size and hole depth.

Coating

Galvanised

Head Type

Hex Head

Grade

M8, M10 and M Diameter - Class 5.8

M16 and M20 Diameter - Class 4.6

Drilling and Fixing Information for Through Bolt - Galvanised

Size	Drill Size (mm)	Fasten Material (mm)	Min. Hole Depth (mm)
8mm x 80	8	15	55
8mm x 100	8	35	55
8mm x 120	8	55	55
10mm x 65	10	10	45
10mm x 90	10	17	60
10mm x 120	10	47	60
12mm x 80	12	5	60
12mm x 100	12	25	60
12mm x 140	12	45	80
16mm x 105	16	5	80
16mm x 125	16	10	100
16mm x 140	16	20	100
16mm x 190	16	70	100
20mm x 125	20	5	100
20mm x 160	20	20	120
20mm x 200	20	60	120